int 0 - Page 437 - Developer IT

Making Apache 2.2 on SuSE Linux Case In-Sensitive. Which is a better approach?

- by pingu

Problem: http://<server>/home/APPLE.html http://<server>/hoME/APPLE.html http://<server>/HOME/aPPLE.html http://<server>/hoME/aPPLE.html All the above should pick this http://<server>/home/apple.html I implemented 2 solutions and both are working fine. Not sure which one is better(performance). Please Suggest..Also Directive - CheckCaseOnly on never worked Option 1: a)Enable:mod_speling In /etc/sysconfig/apache2 - APACHE_MODULES="rewrite speling apparmor......" b) Add directive - CheckSpelling on (Either in .htaccess or add in httpd.conf) In httpd.conf <Directory srv/www/htdcos/home> Order allow,deny CheckSpelling on Allow from all </Directory> or In .htaccess inside /srv/www/htdcos/home(your content folder) CheckSpelling on Option 2: a) Enable: mod_rewrite b) Write the rule vhost(you can not write RewriteMap in directory. check apache docs ) <VirtualHost _default_:80> <IfModule mod_rewrite.c> Options +FollowSymLinks RewriteEngine on RewriteMap lc int:tolower RewriteCond %{REQUEST_URI} [A-Z] RewriteRule (.*) ${lc:$1} [R=301,L] </IfModule> </VirtualHost> <VirtualHost _default_:80> <IfModule mod_rewrite.c> Options +FollowSymLinks RewriteEngine on RewriteMap lc int:tolower RewriteCond %{REQUEST_URI} [A-Z] RewriteRule (.*) ${lc:$1} [R=301,L] </IfModule> </VirtualHost> This changes the entire request uri into lowercase. I want this to happen for specific folder, but RewriteMap doesn't work in .htaccess. I am novice in regex and Rewrite. I need a RewriteCond which checks only /css//. can any body help

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Google Chrome - Issues with download dialogs using BinaryWrite

- by Mila

Hello, I have an empty ASP .NET page with the code behind to support downloading of PDF files. The page is called from a link-like web control that has NavigateUrl set to this page. In short, I am using the following for streaming: Response.Buffer = false; Response.ClearHeaders(); Response.ContentType = "application/x-pdf"; Response.AddHeader("Content-Disposition","attachment; filename="MyPDFFile.pdf"); byte[] binary = (dataReaderRemote[DataPDFFieldName]) as byte[]; //dataReaderRemote[DataPDFFieldName] has previously retrieved data if (binary != null) { MemoryStream memoryStream = new MemoryStream(binary); int sizeToWrite = CHUNKSIZE; //CHUNKSIZE=1024 for (int i = 0; i < binary.GetUpperBound(0) - 1; i = i + CHUNKSIZE) { if (!Response.IsClientConnected) return; if (i + CHUNKSIZE >= binary.Length) sizeToWrite = binary.Length - i; byte[] chunk = new byte[sizeToWrite]; memoryStream.Read(chunk, 0, sizeToWrite); Response.BinaryWrite(chunk); Response.Flush(); } } Response.Close(); IE as well as Firefox bring the download prompt window asking you whether you wish to open or save the file, while the user remains on the same page containing the link. However, Google Chrome opens a new blank tab and downloads the file automatically. Is there any way to prevent Chrome from opening the extra blank and therefore useless tab? I am using the Google Chrome version 5.0.375.55 (Official Build 47796) on Windows XP. Thanks in advance! Mila

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netsnmp - how to register string?

- by user1495181

I use net-snmp. I try to add my own mibs (no need in handler, just a MIB that i can get and set by snmp call), so i followed the scalar example. In order to add my own mibs i defined them in the mib file and create an agent extension.(see below). It work, so i have now an integer MIB. Now i want to add string mib, so i define the MIB , but i dont find a register API for string, like i have for the int - netsnmp_register_int_instance. I look in the includes file , but dosnt found matching one. agent: #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> #include <net-snmp/agent/net-snmp-agent-includes.h> #include "monitor.h" static int int_init = 0; /* default value */ void init_monitor(void) { oid open_connections_count_oid[] = { 1, 3, 6, 1, 4, 1, 8075, 1, 0 }; netsnmp_register_int_instance("open_connections_count", open_connections_count_oid, OID_LENGTH(open_connections_count_oid), &int_init, NULL); }

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MySQL Error: FUNCTION LEVENSHTEIN already exists

- by kgrote

I've got an ExpressionEngine database and I exported a couple of tables from it, then dropped those tables. When I try to re-import the tables in PHPMyAdmin, I get this error: SQL query: -- -- Database: `my_db` -- DELIMITER $$ -- -- Functions -- CREATE DEFINER=`my_username`@`%` FUNCTION `LEVENSHTEIN`(s1 VARCHAR(255), s2 VARCHAR(255)) RETURNS int(11) DETERMINISTIC BEGIN DECLARE s1_len, s2_len, i, j, c, c_temp, cost INT; DECLARE s1_char CHAR; DECLARE cv0, cv1 VARBINARY(256); SET s1_len = CHAR_LENGTH(s1), s2_len = CHAR_LENGTH(s2), cv1 = 0x00, j = 1, i = 1, c = 0; IF s1 = s2 THEN RETURN 0; ELSEIF s1_len = 0 THEN RETURN s2_len; ELSEIF s2_len = 0 THEN RETURN s1_len; ELSE WHILE j <= s2_len DO SET cv1 = CONCAT(cv1, UNHEX(HEX(j))), j = j + 1; END WHILE; WHILE i <= s1_len DO SET s1_char = SUBSTRING(s1, i, 1), c = i, cv0 = UNHEX(HEX(i)), j = 1; WHILE j <= s2_len DO SET c = c + 1; IF s1_char = SUBSTRING(s2, j, 1) THEN SET cost = 0; ELSE SET cost = 1; END IF; SET c_temp = CONV(HEX(SUBSTRING(cv1, j, 1)), 16, 10) + cost; IF c > c_temp THEN SET c = [...] MySQL said: Documentation #1304 - FUNCTION LEVENSHTEIN already exists I get this error even if I drop all tables from the DB and try to import anything. The only way I can get the error to go away is to totally delete the database and re-create it. What's causing that error and how can I stop it from happening?

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How to disable monitor "sleep" on Ubuntu without access to X?

- by exhuma

I just received a CuBox (basically a tiny ARM based PC). It comes pre-installed with Ubuntu, and I did not (yet) want to fiddle with the OS itself. My aim is to have it automaticall start a browser in fullscrren upon boot. Using chromium with the "--kiosk" flag works perfectly in that regard. But now I have the problem that the screen turns off after a certain time. I managed to turn off the screen saver using: gconftool-2 -s /apps/gnome-screensaver/idle_activation_enabled --type=bool false And tried to turn off the power management using: gconftool-2 -s /apps/gnome-power-manager/ac_sleep_display --type=int 0 and gconftool-2 -s /apps/gnome-power-manager/timeout/sleep_display_ac --type=int 0 Neither of the power-management commands worked. Theoretically I could hook up a mouse and keyboard and configure it manually. But I want to learn how to do it over the console. The box will eventually be only reachable via SSH. So I'd like to be able to trouble-shoot it later. I don't quite know where to look for. I searched the gconf tree using gconftool-2 -S for anything related to the terms power, idle and sleep but did not find anything promising. Maybe it's not even gconf related... Any ideas what else I could look for?

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Connecting to Server 2008 shares fails

- by Chris J

I'm having problems getting a reliable share working on an x64 Server 2008 R1 SP1 server. All works well after a reboot, but after some time (within a day) the shares become unavailable to XP and Server 2003 servers. Interestingly, they remain available to other Server 2008 servers. On trying to access \\server\share, Server 2003 returns immediately and simply gives me the message "The specified network name is no longer available", XP takes a minute or two to timeout before giving the same message. There doesn't seem to be anything in the event logs indicating a problem. Doing some googling over the last day or two I've seen the following blamed: Bad network drivers ... I've updated to the latest drivers with no result Symantec anti-virus ... we're not using it (currently no AV on the server) Receive window auto-tuning ... I've disabled with netsh int tcp set global autotuninglevel=disabled and netsh int tcp set global rss=disabled None of these have had an effect. Windows Firewall is currently disabled. As other Server 2008 boxes (both x32 and x64) can connect, I can only assume that there's some new security configuration that's not quite right - or there's an AD issue that I need to trace, but don't know where to start. Even if anyone doesn't know how to resolve, if someone knows what I need to look for with Wireshark this would be a help.

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Heavy write to Galera cluster - table locked, cluster practically unusable

- by Joe

I set up Galera Cluster on 3 nodes. It works perfectly for reading data. I have done simple application to make some test on the cluster. Unfortunately I have to say that the Cluster fails totally when I try to do some writing. Maybe it can be configured differently or I do sth wrong? I have a simple stored procedure: CREATE PROCEDURE testproc(IN p_idWorker INTEGER) BEGIN DECLARE t_id INT DEFAULT -1; DECLARE t_counter INT ; UPDATE test SET idWorker = p_idWorker WHERE counter = 0 AND idWorker IS NULL limit 1; SELECT id FROM test WHERE idWorker = p_idWorker LIMIT 1 INTO t_id; SELECT ABS(MAX(counter)/MIN(counter)) FROM TEST INTO t_counter; SELECT COUNT(*) FROM test WHERE counter = 0 INTO t_counter; IF t_id >= 0 THEN UPDATE test SET counter = counter + 1 WHERE id = t_id; UPDATE test SET idWorker = NULL WHERE id = t_id; SELECT t_counter AS res; ELSE SELECT 'end' AS res; END IF; END $$ Now my simple C# application creates for example 3 MySQL clients in separate threads and each one executes the procedure every 100ms until there is no record where column 'counter' = 0. Unfortunately - after about 10 seconds sth is going bad. On servers there is process 'query_end' that never ends. After that - you cannot make update on the test table, MySQL returns: ERROR 1205 (HY000): Lock wait timeout exceeded; try restarting transaction . You cant even restart mysql. What you can do is to restart server, sometimes whole cluster. Is Galera Cluster so unreliable when you do massive concucurrent writing/updates? Hard to believe.

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EMERGENCY! Update Statement for critical mysql production database now running for 18 hours, need help.

- by Tim

We have a table with 500 million rows. Unfortunately, one of the columns was int(11), which is a signed int, and it was an incrementing value that just rolled over the 2.1 billion magic number. This immediately caused downtime for about 10.000 users. We discussed many solutions, and decided that we could just roll back this value safely, by say, a billion. But we had to roll it back for every row. Here is what we did: update Table1 Set MessageId = case when MessageId < 1073741824 then 0 else MessageId - 1073741824 end; I tested this on a table with 10 million rows and it took 11 minutes. So I assumed the larger table would take 550 minutes, or 9 hours. This was going to be our biggest downtime in 3 years. (We're a startup). It's now going on 18 hours. What should we do? Please don't say what we should have done. I think we should have updated a few million rows at a time. Is there a way we can see progress? Could Mysql have hung? Using mysql 5.0.22. Thanks!

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fatal error C1014: too many include files : depth = 1024

- by numerical25

I have no idea what this means. But here is the code that it supposely is happening in. //======================================================================================= // d3dApp.cpp by Frank Luna (C) 2008 All Rights Reserved. //======================================================================================= #include "d3dApp.h" #include <stream> LRESULT CALLBACK MainWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { static D3DApp* app = 0; switch( msg ) { case WM_CREATE: { // Get the 'this' pointer we passed to CreateWindow via the lpParam parameter. CREATESTRUCT* cs = (CREATESTRUCT*)lParam; app = (D3DApp*)cs->lpCreateParams; return 0; } } // Don't start processing messages until after WM_CREATE. if( app ) return app->msgProc(msg, wParam, lParam); else return DefWindowProc(hwnd, msg, wParam, lParam); } D3DApp::D3DApp(HINSTANCE hInstance) { mhAppInst = hInstance; mhMainWnd = 0; mAppPaused = false; mMinimized = false; mMaximized = false; mResizing = false; mFrameStats = L""; md3dDevice = 0; mSwapChain = 0; mDepthStencilBuffer = 0; mRenderTargetView = 0; mDepthStencilView = 0; mFont = 0; mMainWndCaption = L"D3D10 Application"; md3dDriverType = D3D10_DRIVER_TYPE_HARDWARE; mClearColor = D3DXCOLOR(0.0f, 0.0f, 1.0f, 1.0f); mClientWidth = 800; mClientHeight = 600; } D3DApp::~D3DApp() { ReleaseCOM(mRenderTargetView); ReleaseCOM(mDepthStencilView); ReleaseCOM(mSwapChain); ReleaseCOM(mDepthStencilBuffer); ReleaseCOM(md3dDevice); ReleaseCOM(mFont); } HINSTANCE D3DApp::getAppInst() { return mhAppInst; } HWND D3DApp::getMainWnd() { return mhMainWnd; } int D3DApp::run() { MSG msg = {0}; mTimer.reset(); while(msg.message != WM_QUIT) { // If there are Window messages then process them. if(PeekMessage( &msg, 0, 0, 0, PM_REMOVE )) { TranslateMessage( &msg ); DispatchMessage( &msg ); } // Otherwise, do animation/game stuff. else { mTimer.tick(); if( !mAppPaused ) updateScene(mTimer.getDeltaTime()); else Sleep(50); drawScene(); } } return (int)msg.wParam; } void D3DApp::initApp() { initMainWindow(); initDirect3D(); D3DX10_FONT_DESC fontDesc; fontDesc.Height = 24; fontDesc.Width = 0; fontDesc.Weight = 0; fontDesc.MipLevels = 1; fontDesc.Italic = false; fontDesc.CharSet = DEFAULT_CHARSET; fontDesc.OutputPrecision = OUT_DEFAULT_PRECIS; fontDesc.Quality = DEFAULT_QUALITY; fontDesc.PitchAndFamily = DEFAULT_PITCH | FF_DONTCARE; wcscpy(fontDesc.FaceName, L"Times New Roman"); D3DX10CreateFontIndirect(md3dDevice, &fontDesc, &mFont); } void D3DApp::onResize() { // Release the old views, as they hold references to the buffers we // will be destroying. Also release the old depth/stencil buffer. ReleaseCOM(mRenderTargetView); ReleaseCOM(mDepthStencilView); ReleaseCOM(mDepthStencilBuffer); // Resize the swap chain and recreate the render target view. HR(mSwapChain->ResizeBuffers(1, mClientWidth, mClientHeight, DXGI_FORMAT_R8G8B8A8_UNORM, 0)); ID3D10Texture2D* backBuffer; HR(mSwapChain->GetBuffer(0, __uuidof(ID3D10Texture2D), reinterpret_cast<void**>(&backBuffer))); HR(md3dDevice->CreateRenderTargetView(backBuffer, 0, &mRenderTargetView)); ReleaseCOM(backBuffer); // Create the depth/stencil buffer and view. D3D10_TEXTURE2D_DESC depthStencilDesc; depthStencilDesc.Width = mClientWidth; depthStencilDesc.Height = mClientHeight; depthStencilDesc.MipLevels = 1; depthStencilDesc.ArraySize = 1; depthStencilDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT; depthStencilDesc.SampleDesc.Count = 1; // multisampling must match depthStencilDesc.SampleDesc.Quality = 0; // swap chain values. depthStencilDesc.Usage = D3D10_USAGE_DEFAULT; depthStencilDesc.BindFlags = D3D10_BIND_DEPTH_STENCIL; depthStencilDesc.CPUAccessFlags = 0; depthStencilDesc.MiscFlags = 0; HR(md3dDevice->CreateTexture2D(&depthStencilDesc, 0, &mDepthStencilBuffer)); HR(md3dDevice->CreateDepthStencilView(mDepthStencilBuffer, 0, &mDepthStencilView)); // Bind the render target view and depth/stencil view to the pipeline. md3dDevice->OMSetRenderTargets(1, &mRenderTargetView, mDepthStencilView); // Set the viewport transform. D3D10_VIEWPORT vp; vp.TopLeftX = 0; vp.TopLeftY = 0; vp.Width = mClientWidth; vp.Height = mClientHeight; vp.MinDepth = 0.0f; vp.MaxDepth = 1.0f; md3dDevice->RSSetViewports(1, &vp); } void D3DApp::updateScene(float dt) { // Code computes the average frames per second, and also the // average time it takes to render one frame. static int frameCnt = 0; static float t_base = 0.0f; frameCnt++; // Compute averages over one second period. if( (mTimer.getGameTime() - t_base) >= 1.0f ) { float fps = (float)frameCnt; // fps = frameCnt / 1 float mspf = 1000.0f / fps; std::wostringstream outs; outs.precision(6); outs << L"FPS: " << fps << L"\n" << "Milliseconds: Per Frame: " << mspf; mFrameStats = outs.str(); // Reset for next average. frameCnt = 0; t_base += 1.0f; } } void D3DApp::drawScene() { md3dDevice->ClearRenderTargetView(mRenderTargetView, mClearColor); md3dDevice->ClearDepthStencilView(mDepthStencilView, D3D10_CLEAR_DEPTH|D3D10_CLEAR_STENCIL, 1.0f, 0); } LRESULT D3DApp::msgProc(UINT msg, WPARAM wParam, LPARAM lParam) { switch( msg ) { // WM_ACTIVATE is sent when the window is activated or deactivated. // We pause the game when the window is deactivated and unpause it // when it becomes active. case WM_ACTIVATE: if( LOWORD(wParam) == WA_INACTIVE ) { mAppPaused = true; mTimer.stop(); } else { mAppPaused = false; mTimer.start(); } return 0; // WM_SIZE is sent when the user resizes the window. case WM_SIZE: // Save the new client area dimensions. mClientWidth = LOWORD(lParam); mClientHeight = HIWORD(lParam); if( md3dDevice ) { if( wParam == SIZE_MINIMIZED ) { mAppPaused = true; mMinimized = true; mMaximized = false; } else if( wParam == SIZE_MAXIMIZED ) { mAppPaused = false; mMinimized = false; mMaximized = true; onResize(); } else if( wParam == SIZE_RESTORED ) { // Restoring from minimized state? if( mMinimized ) { mAppPaused = false; mMinimized = false; onResize(); } // Restoring from maximized state? else if( mMaximized ) { mAppPaused = false; mMaximized = false; onResize(); } else if( mResizing ) { // If user is dragging the resize bars, we do not resize // the buffers here because as the user continuously // drags the resize bars, a stream of WM_SIZE messages are // sent to the window, and it would be pointless (and slow) // to resize for each WM_SIZE message received from dragging // the resize bars. So instead, we reset after the user is // done resizing the window and releases the resize bars, which // sends a WM_EXITSIZEMOVE message. } else // API call such as SetWindowPos or mSwapChain->SetFullscreenState. { onResize(); } } } return 0; // WM_EXITSIZEMOVE is sent when the user grabs the resize bars. case WM_ENTERSIZEMOVE: mAppPaused = true; mResizing = true; mTimer.stop(); return 0; // WM_EXITSIZEMOVE is sent when the user releases the resize bars. // Here we reset everything based on the new window dimensions. case WM_EXITSIZEMOVE: mAppPaused = false; mResizing = false; mTimer.start(); onResize(); return 0; // WM_DESTROY is sent when the window is being destroyed. case WM_DESTROY: PostQuitMessage(0); return 0; // The WM_MENUCHAR message is sent when a menu is active and the user presses // a key that does not correspond to any mnemonic or accelerator key. case WM_MENUCHAR: // Don't beep when we alt-enter. return MAKELRESULT(0, MNC_CLOSE); // Catch this message so to prevent the window from becoming too small. case WM_GETMINMAXINFO: ((MINMAXINFO*)lParam)->ptMinTrackSize.x = 200; ((MINMAXINFO*)lParam)->ptMinTrackSize.y = 200; return 0; } return DefWindowProc(mhMainWnd, msg, wParam, lParam); } void D3DApp::initMainWindow() { WNDCLASS wc; wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = MainWndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = mhAppInst; wc.hIcon = LoadIcon(0, IDI_APPLICATION); wc.hCursor = LoadCursor(0, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH); wc.lpszMenuName = 0; wc.lpszClassName = L"D3DWndClassName"; if( !RegisterClass(&wc) ) { MessageBox(0, L"RegisterClass FAILED", 0, 0); PostQuitMessage(0); } // Compute window rectangle dimensions based on requested client area dimensions. RECT R = { 0, 0, mClientWidth, mClientHeight }; AdjustWindowRect(&R, WS_OVERLAPPEDWINDOW, false); int width = R.right - R.left; int height = R.bottom - R.top; mhMainWnd = CreateWindow(L"D3DWndClassName", mMainWndCaption.c_str(), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, width, height, 0, 0, mhAppInst, this); if( !mhMainWnd ) { MessageBox(0, L"CreateWindow FAILED", 0, 0); PostQuitMessage(0); } ShowWindow(mhMainWnd, SW_SHOW); UpdateWindow(mhMainWnd); } void D3DApp::initDirect3D() { // Fill out a DXGI_SWAP_CHAIN_DESC to describe our swap chain. DXGI_SWAP_CHAIN_DESC sd; sd.BufferDesc.Width = mClientWidth; sd.BufferDesc.Height = mClientHeight; sd.BufferDesc.RefreshRate.Numerator = 60; sd.BufferDesc.RefreshRate.Denominator = 1; sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; sd.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED; sd.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED; // No multisampling. sd.SampleDesc.Count = 1; sd.SampleDesc.Quality = 0; sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; sd.BufferCount = 1; sd.OutputWindow = mhMainWnd; sd.Windowed = true; sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; sd.Flags = 0; // Create the device. UINT createDeviceFlags = 0; #if defined(DEBUG) || defined(_DEBUG) createDeviceFlags |= D3D10_CREATE_DEVICE_DEBUG; #endif HR( D3D10CreateDeviceAndSwapChain( 0, //default adapter md3dDriverType, 0, // no software device createDeviceFlags, D3D10_SDK_VERSION, &sd, &mSwapChain, &md3dDevice) ); // The remaining steps that need to be carried out for d3d creation // also need to be executed every time the window is resized. So // just call the onResize method here to avoid code duplication. onResize(); }

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How can I resolve Hibernate 3's ConstraintViolationException when updating a Persistent Entity's Col

- by Tim Visher

I'm trying to discover why two nearly identical class sets are behaving different from Hibernate 3's perspective. I'm fairly new to Hibernate in general and I'm hoping I'm missing something fairly obvious about the mappings or timing issues or something along those lines but I spent the whole day yesterday staring at the two sets and any differences that would lead to one being able to be persisted and the other not completely escaped me. I appologize in advance for the length of this question but it all hinges around some pretty specific implementation details. I have the following class mapped with Annotations and managed by Hibernate 3.? (if the specific specific version turns out to be pertinent, I'll figure out what it is). Java version is 1.6. ... @Embeddable public class JobStateChange implements Comparable<JobStateChange> { @Temporal(TemporalType.TIMESTAMP) @Column(nullable = false) private Date date; @Enumerated(EnumType.STRING) @Column(nullable = false, length = JobState.FIELD_LENGTH) private JobState state; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "acting_user_id", nullable = false) private User actingUser; public JobStateChange() { } @Override public int compareTo(final JobStateChange o) { return this.date.compareTo(o.date); } @Override public boolean equals(final Object obj) { if (this == obj) { return true; } else if (!(obj instanceof JobStateChange)) { return false; } JobStateChange candidate = (JobStateChange) obj; return this.state == candidate.state && this.actingUser.equals(candidate.getUser()) && this.date.equals(candidate.getDate()); } @Override public int hashCode() { return this.state.hashCode() + this.actingUser.hashCode() + this.date.hashCode(); } } It is mapped as a Hibernate CollectionOfElements in the class Job as follows: ... @Entity @Table( name = "job", uniqueConstraints = { @UniqueConstraint( columnNames = { "agency", //Job Name "payment_type", //Job Name "payment_file", //Job Name "date_of_payment", "payment_control_number", "truck_number" }) }) public class Job implements Serializable { private static final long serialVersionUID = -1131729422634638834L; ... @org.hibernate.annotations.CollectionOfElements @JoinTable(name = "job_state", joinColumns = @JoinColumn(name = "job_id")) @Sort(type = SortType.NATURAL) private final SortedSet<JobStateChange> stateChanges = new TreeSet<JobStateChange>(); ... public void advanceState( final User actor, final Date date) { JobState nextState; LOGGER.debug("Current state of {} is {}.", this, this.getCurrentState()); if (null == this.currentState) { nextState = JobState.BEGINNING; } else { if (!this.isAdvanceable()) { throw new IllegalAdvancementException(this.currentState.illegalAdvancementStateMessage); } if (this.currentState.isDivergent()) { nextState = this.currentState.getNextState(this); } else { nextState = this.currentState.getNextState(); } } JobStateChange stateChange = new JobStateChange(nextState, actor, date); this.setCurrentState(stateChange.getState()); this.stateChanges.add(stateChange); LOGGER.debug("Advanced {} to {}", this, this.getCurrentState()); } private void setCurrentState(final JobState jobState) { this.currentState = jobState; } boolean isAdvanceable() { return this.getCurrentState().isAdvanceable(this); } ... @Override public boolean equals(final Object obj) { if (obj == this) { return true; } else if (!(obj instanceof Job)) { return false; } Job otherJob = (Job) obj; return this.getName().equals(otherJob.getName()) && this.getDateOfPayment().equals(otherJob.getDateOfPayment()) && this.getPaymentControlNumber().equals(otherJob.getPaymentControlNumber()) && this.getTruckNumber().equals(otherJob.getTruckNumber()); } @Override public int hashCode() { return this.getName().hashCode() + this.getDateOfPayment().hashCode() + this.getPaymentControlNumber().hashCode() + this.getTruckNumber().hashCode(); } ... } The purpose of JobStateChange is to record when the Job moves through a series of State Changes that are outline in JobState as enums which know about advancement and decrement rules. The interface used to advance Jobs through a series of states is to call Job.advanceState() with a Date and a User. If the Job is advanceable according to rules coded in the enum, then a new StateChange is added to the SortedSet and everyone's happy. If not, an IllegalAdvancementException is thrown. The DDL this generates is as follows: ... drop table job; drop table job_state; ... create table job ( id bigint generated by default as identity, current_state varchar(25), date_of_payment date not null, beginningCheckNumber varchar(8) not null, item_count integer, agency varchar(10) not null, payment_file varchar(25) not null, payment_type varchar(25) not null, endingCheckNumber varchar(8) not null, payment_control_number varchar(4) not null, truck_number varchar(255) not null, wrapping_system_type varchar(15) not null, printer_id bigint, primary key (id), unique (agency, payment_type, payment_file, date_of_payment, payment_control_number, truck_number) ); create table job_state ( job_id bigint not null, acting_user_id bigint not null, date timestamp not null, state varchar(25) not null, primary key (job_id, acting_user_id, date, state) ); ... alter table job add constraint FK19BBD12FB9D70 foreign key (printer_id) references printer; alter table job_state add constraint FK57C2418FED1F0D21 foreign key (acting_user_id) references app_user; alter table job_state add constraint FK57C2418FABE090B3 foreign key (job_id) references job; ... The database is seeded with the following data prior to running tests ... insert into job (id, agency, payment_type, payment_file, payment_control_number, date_of_payment, beginningCheckNumber, endingCheckNumber, item_count, current_state, printer_id, wrapping_system_type, truck_number) values (-3, 'RRB', 'Monthly', 'Monthly','4501','1998-12-01 08:31:16' , '00000001','00040000', 40000, 'UNASSIGNED', null, 'KERN', '02'); insert into job_state (job_id, acting_user_id, date, state) values (-3, -1, '1998-11-30 08:31:17', 'UNASSIGNED'); ... After the database schema is automatically generated and rebuilt by the Hibernate tool. The following test runs fine up until the call to Session.flush() ... @ContextConfiguration(locations = { "/applicationContext-data.xml", "/applicationContext-service.xml" }) public class JobDaoIntegrationTest extends AbstractTransactionalJUnit4SpringContextTests { @Autowired private JobDao jobDao; @Autowired private SessionFactory sessionFactory; @Autowired private UserService userService; @Autowired private PrinterService printerService; ... @Test public void saveJob_JobAdvancedToAssigned_AllExpectedStateChanges() { //Get an unassigned Job Job job = this.jobDao.getJob(-3L); assertEquals(JobState.UNASSIGNED, job.getCurrentState()); Date advancedToUnassigned = new GregorianCalendar(1998, 10, 30, 8, 31, 17).getTime(); assertEquals(advancedToUnassigned, job.getStateChange(JobState.UNASSIGNED).getDate()); //Satisfy advancement constraints and advance job.setPrinter(this.printerService.getPrinter(-1L)); Date advancedToAssigned = new Date(); job.advanceState( this.userService.getUserByUsername("admin"), advancedToAssigned); assertEquals(JobState.ASSIGNED, job.getCurrentState()); assertEquals(advancedToUnassigned, job.getStateChange(JobState.UNASSIGNED).getDate()); assertEquals(advancedToAssigned, job.getStateChange(JobState.ASSIGNED).getDate()); //Persist to DB this.sessionFactory.getCurrentSession().flush(); ... } ... } The error thrown is SQLCODE=-803, SQLSTATE=23505: could not insert collection rows: [jaci.model.job.Job.stateChanges#-3] org.hibernate.exception.ConstraintViolationException: could not insert collection rows: [jaci.model.job.Job.stateChanges#-3] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.persister.collection.AbstractCollectionPersister.insertRows(AbstractCollectionPersister.java:1416) at org.hibernate.action.CollectionUpdateAction.execute(CollectionUpdateAction.java:86) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:170) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027) at jaci.dao.JobDaoIntegrationTest.saveJob_JobAdvancedToAssigned_AllExpectedStateChanges(JobDaoIntegrationTest.java:98) at org.springframework.test.context.junit4.SpringTestMethod.invoke(SpringTestMethod.java:160) at org.springframework.test.context.junit4.SpringMethodRoadie.runTestMethod(SpringMethodRoadie.java:233) at org.springframework.test.context.junit4.SpringMethodRoadie$RunBeforesThenTestThenAfters.run(SpringMethodRoadie.java:333) at org.springframework.test.context.junit4.SpringMethodRoadie.runWithRepetitions(SpringMethodRoadie.java:217) at org.springframework.test.context.junit4.SpringMethodRoadie.runTest(SpringMethodRoadie.java:197) at org.springframework.test.context.junit4.SpringMethodRoadie.run(SpringMethodRoadie.java:143) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:160) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97) Caused by: com.ibm.db2.jcc.b.lm: DB2 SQL Error: SQLCODE=-803, SQLSTATE=23505, SQLERRMC=1;ACI_APP.JOB_STATE, DRIVER=3.50.152 at com.ibm.db2.jcc.b.wc.a(wc.java:575) at com.ibm.db2.jcc.b.wc.a(wc.java:57) at com.ibm.db2.jcc.b.wc.a(wc.java:126) at com.ibm.db2.jcc.b.tk.b(tk.java:1593) at com.ibm.db2.jcc.b.tk.c(tk.java:1576) at com.ibm.db2.jcc.t4.db.k(db.java:353) at com.ibm.db2.jcc.t4.db.a(db.java:59) at com.ibm.db2.jcc.t4.t.a(t.java:50) at com.ibm.db2.jcc.t4.tb.b(tb.java:200) at com.ibm.db2.jcc.b.uk.Gb(uk.java:2355) at com.ibm.db2.jcc.b.uk.e(uk.java:3129) at com.ibm.db2.jcc.b.uk.zb(uk.java:568) at com.ibm.db2.jcc.b.uk.executeUpdate(uk.java:551) at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:46) at org.hibernate.persister.collection.AbstractCollectionPersister.insertRows(AbstractCollectionPersister.java:1389) Therein lies my problem… A nearly identical Class set (in fact, so identical that I've been chomping at the bit to make it a single class that serves both business entities) runs absolutely fine. It is identical except for name. Instead of Job it's Web. Instead of JobStateChange it's WebStateChange. Instead of JobState it's WebState. Both Job and Web's SortedSet of StateChanges are mapped as a Hibernate CollectionOfElements. Both are @Embeddable. Both are SortType.Natural. Both are backed by an Enumeration with some advancement rules in it. And yet when a nearly identical test is run for Web, no issue is discovered and the data flushes fine. For the sake of brevity I won't include all of the Web classes here, but I will include the test and if anyone wants to see the actual sources, I'll include them (just leave a comment). The data seed: insert into web (id, stock_type, pallet, pallet_id, date_received, first_icn, last_icn, shipment_id, current_state) values (-1, 'PF', '0011', 'A', '2008-12-31 08:30:02', '000000001', '000080000', -1, 'UNSTAGED'); insert into web_state (web_id, date, state, acting_user_id) values (-1, '2008-12-31 08:30:03', 'UNSTAGED', -1); The test: ... @ContextConfiguration(locations = { "/applicationContext-data.xml", "/applicationContext-service.xml" }) public class WebDaoIntegrationTest extends AbstractTransactionalJUnit4SpringContextTests { @Autowired private WebDao webDao; @Autowired private UserService userService; @Autowired private SessionFactory sessionFactory; ... @Test public void saveWeb_WebAdvancedToNewState_AllExpectedStateChanges() { Web web = this.webDao.getWeb(-1L); Date advancedToUnstaged = new GregorianCalendar(2008, 11, 31, 8, 30, 3).getTime(); assertEquals(WebState.UNSTAGED, web.getCurrentState()); assertEquals(advancedToUnstaged, web.getState(WebState.UNSTAGED).getDate()); Date advancedToStaged = new Date(); web.advanceState( this.userService.getUserByUsername("admin"), advancedToStaged); this.sessionFactory.getCurrentSession().flush(); web = this.webDao.getWeb(web.getId()); assertEquals( "Web should have moved to STAGED State.", WebState.STAGED, web.getCurrentState()); assertEquals(advancedToUnstaged, web.getState(WebState.UNSTAGED).getDate()); assertEquals(advancedToStaged, web.getState(WebState.STAGED).getDate()); assertNotNull(web.getState(WebState.UNSTAGED)); assertNotNull(web.getState(WebState.STAGED)); } ... } As you can see, I assert that the Web was reconstituted the way I expect, I advance it, flush it to the DB, and then re-get it and verify that the states are as I expect. Everything works perfectly. Not so with Job. A possibly pertinent detail: the reconstitution code works fine if I cease to map JobStateChange.data as a TIMESTAMP and instead as a DATE, and ensure that all of the StateChanges always occur on different Dates. The problem is that this particular business entity can go through many state changes in a single day and so it needs to be sorted by time stamp rather than by date. If I don't do this then I can't sort the StateChanges correctly. That being said, WebStateChange.date is also mapped as a TIMESTAMP and so I again remain absolutely befuddled as to where this error is arising from. I tried to do a fairly thorough job of giving all of the technical details of the implementation but as this particular question is very implementation specific, if I missed anything just let me know in the comments and I'll include it. Thanks so much for your help! UPDATE: Since it turns out to be important to the solution of my problem, I have to include the pertinent bits of the WebStateChange class as well. ... @Embeddable public class WebStateChange implements Comparable<WebStateChange> { @Temporal(TemporalType.TIMESTAMP) @Column(nullable = false) private Date date; @Enumerated(EnumType.STRING) @Column(nullable = false, length = WebState.FIELD_LENGTH) private WebState state; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "acting_user_id", nullable = false) private User actingUser; ... WebStateChange( final WebState state, final User actingUser, final Date date) { ExceptionUtils.illegalNullArgs(state, actingUser, date); this.state = state; this.actingUser = actingUser; this.date = new Date(date.getTime()); } @Override public int compareTo(final WebStateChange otherStateChange) { return this.date.compareTo(otherStateChange.date); } @Override public boolean equals(final Object candidate) { if (this == candidate) { return true; } else if (!(candidate instanceof WebStateChange)) { return false; } WebStateChange candidateWebState = (WebStateChange) candidate; return this.getState() == candidateWebState.getState() && this.getUser().equals(candidateWebState.getUser()) && this.getDate().equals(candidateWebState.getDate()); } @Override public int hashCode() { return this.getState().hashCode() + this.getUser().hashCode() + this.getDate().hashCode(); } ... }

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Sensible Way to Pass Web Data in XML to a SQL Server Database

- by Emtucifor

After exploring several different ways to pass web data to a database for update purposes, I'm wondering if XML might be a good strategy. The database is currently SQL 2000. In a few months it will move to SQL 2005 and I will be able to change things if needed, but I need a SQL 2000 solution now. First of all, the database in question uses the EAV model. I know that this kind of database is generally highly frowned on, so for the purposes of this question, please just accept that this is not going to change. The current update method has the web server inserting values (that have all been converted first to their correct underlying types, then to sql_variant) to a temp table. A stored procedure is then run which expects the temp table to exist and it takes care of updating, inserting, or deleting things as needed. So far, only a single element has needed to be updated at a time. But now, there is a requirement to be able to edit multiple elements at once, and also to support hierarchical elements, each of which can have its own list of attributes. Here's some example XML I hand-typed to demonstrate what I'm thinking of. Note that in this database the Entity is Element and an ID of 0 signifies "create" aka an insert of a new item. <Elements> <Element ID="1234"> <Attr ID="221">Value</Attr> <Attr ID="225">287</Attr> <Attr ID="234"> <Element ID="99825"> <Attr ID="7">Value1</Attr> <Attr ID="8">Value2</Attr> <Attr ID="9" Action="delete" /> </Element> <Element ID="99826" Action="delete" /> <Element ID="0" Type="24"> <Attr ID="7">Value4</Attr> <Attr ID="8">Value5</Attr> <Attr ID="9">Value6</Attr> </Element> <Element ID="0" Type="24"> <Attr ID="7">Value7</Attr> <Attr ID="8">Value8</Attr> <Attr ID="9">Value9</Attr> </Element> </Attr> <Rel ID="3827" Action="delete" /> <Rel ID="2284" Role="parent"> <Element ID="3827" /> <Element ID="3829" /> <Attr ID="665">1</Attr> </Rel> <Rel ID="0" Type="23" Role="child"> <Element ID="3830" /> <Attr ID="67" </Rel> </Element> <Element ID="0" Type="87"> <Attr ID="221">Value</Attr> <Attr ID="225">569</Attr> <Attr ID="234"> <Element ID="0" Type="24"> <Attr ID="7">Value10</Attr> <Attr ID="8">Value11</Attr> <Attr ID="9">Value12</Attr> </Element> </Attr> </Element> <Element ID="1235" Action="delete" /> </Elements> Some Attributes are straight value types, such as AttrID 221. But AttrID 234 is a special "multi-value" type that can have a list of elements underneath it, and each one can have one or more values. Types only need to be presented when a new item is created, since the ElementID fully implies the type if it already exists. I'll probably support only passing in changed items (as detected by javascript). And there may be an Action="Delete" on Attr elements as well, since NULLs are treated as "unselected"--sometimes it's very important to know if a Yes/No question has intentionally been answered No or if no one's bothered to say Yes yet. There is also a different kind of data, a Relationship. At this time, those are updated through individual AJAX calls as things are edited in the UI, but I'd like to include those so that changes to relationships can be canceled (right now, once you change it, it's done). So those are really elements, too, but they are called Rel instead of Element. Relationships are implemented as ElementID1 and ElementID2, so the RelID 2284 in the XML above is in the database as: ElementID 2284 ElementID1 1234 ElementID2 3827 Having multiple children in one relationship isn't currently supported, but it would be nice later. Does this strategy and the example XML make sense? Is there a more sensible way? I'm just looking for some broad critique to help save me from going down a bad path. Any aspect that you'd like to comment on would be helpful. The web language happens to be Classic ASP, but that could change to ASP.Net at some point. A persistence engine like Linq or nHibernate is probably not acceptable right now--I just want to get this already working application enhanced without a huge amount of development time. I'll choose the answer that shows experience and has a balance of good warnings about what not to do, confirmations of what I'm planning to do, and recommendations about something else to do. I'll make it as objective as possible. P.S. I'd like to handle unicode characters as well as very long strings (10k +). UPDATE I have had this working for some time and I used the ADO Recordset Save-To-Stream trick to make creating the XML really easy. The result seems to be fairly fast, though if speed ever becomes a problem I may revisit this. In the meantime, my code works to handle any number of elements and attributes on the page at once, including updating, deleting, and creating new items all in one go. I settled on a scheme like so for all my elements: Existing data elements Example: input name e12345_a678 (element 12345, attribute 678), the input value is the value of the attribute. New elements Javascript copies a hidden template of the set of HTML elements needed for the type into the correct location on the page, increments a counter to get a new ID for this item, and prepends the number to the names of the form items. var newid = 0; function metadataAdd(reference, nameid, value) { var t = document.createElement('input'); t.setAttribute('name', nameid); t.setAttribute('id', nameid); t.setAttribute('type', 'hidden'); t.setAttribute('value', value); reference.appendChild(t); } function multiAdd(target, parentelementid, attrid, elementtypeid) { var proto = document.getElementById('a' + attrid + '_proto'); var instance = document.createElement('p'); target.parentNode.parentNode.insertBefore(instance, target.parentNode); var thisid = ++newid; instance.innerHTML = proto.innerHTML.replace(/{prefix}/g, 'n' + thisid + '_'); instance.id = 'n' + thisid; instance.className += ' new'; metadataAdd(instance, 'n' + thisid + '_p', parentelementid); metadataAdd(instance, 'n' + thisid + '_c', attrid); metadataAdd(instance, 'n' + thisid + '_t', elementtypeid); return false; } Example: Template input name _a678 becomes n1_a678 (a new element, the first one on the page, attribute 678). all attributes of this new element are tagged with the same prefix of n1. The next new item will be n2, and so on. Some hidden form inputs are created: n1_t, value is the elementtype of the element to be created n1_p, value is the parent id of the element (if it is a relationship) n1_c, value is the child id of the element (if it is a relationship) Deleting elements A hidden input is created in the form e12345_t with value set to 0. The existing controls displaying that attribute's values are disabled so they are not included in the form post. So "set type to 0" is treated as delete. With this scheme, every item on the page has a unique name and can be distinguished properly, and every action can be represented properly. When the form is posted, here's a sample of building one of the two recordsets used (classic ASP code): Set Data = Server.CreateObject("ADODB.Recordset") Data.Fields.Append "ElementID", adInteger, 4, adFldKeyColumn Data.Fields.Append "AttrID", adInteger, 4, adFldKeyColumn Data.Fields.Append "Value", adLongVarWChar, 2147483647, adFldIsNullable Or adFldMayBeNull Data.CursorLocation = adUseClient Data.CursorType = adOpenDynamic Data.Open This is the recordset for values, the other is for the elements themselves. I step through the posted form and for the element recordset use a Scripting.Dictionary populated with instances of a custom Class that has the properties I need, so that I can add the values piecemeal, since they don't always come in order. New elements are added as negative to distinguish them from regular elements (rather than requiring a separate column to indicate if it is new or addresses an existing element). I use regular expression to tear apart the form keys: "^(e|n)([0-9]{1,10})_(a|p|t|c)([0-9]{0,10})$" Then, adding an attribute looks like this. Data.AddNew ElementID.Value = DataID AttrID.Value = Integerize(Matches(0).SubMatches(3)) AttrValue.Value = Request.Form(Key) Data.Update ElementID, AttrID, and AttrValue are references to the fields of the recordset. This method is hugely faster than using Data.Fields("ElementID").Value each time. I loop through the Dictionary of element updates and ignore any that don't have all the proper information, adding the good ones to the recordset. Then I call my data-updating stored procedure like so: Set Cmd = Server.CreateObject("ADODB.Command") With Cmd Set .ActiveConnection = MyDBConn .CommandType = adCmdStoredProc .CommandText = "DataPost" .Prepared = False .Parameters.Append .CreateParameter("@ElementMetadata", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Element)) .Parameters.Append .CreateParameter("@ElementData", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Data)) End With Result.Open Cmd ' previously created recordset object with options set Here's the function that does the xml conversion: Private Function XMLFromRecordset(Recordset) Dim Stream Set Stream = Server.CreateObject("ADODB.Stream") Stream.Open Recordset.Save Stream, adPersistXML Stream.Position = 0 XMLFromRecordset = Stream.ReadText End Function Just in case the web page needs to know, the SP returns a recordset of any new elements, showing their page value and their created value (so I can see that n1 is now e12346 for example). Here are some key snippets from the stored procedure. Note this is SQL 2000 for now, though I'll be able to switch to 2005 soon: CREATE PROCEDURE [dbo].[DataPost] @ElementMetaData ntext, @ElementData ntext AS DECLARE @hdoc int --- snip --- EXEC sp_xml_preparedocument @hdoc OUTPUT, @ElementMetaData, '<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" />' INSERT #ElementMetadata (ElementID, ElementTypeID, ElementID1, ElementID2) SELECT * FROM OPENXML(@hdoc, '/xml/rs:data/rs:insert/z:row', 0) WITH ( ElementID int, ElementTypeID int, ElementID1 int, ElementID2 int ) ORDER BY ElementID -- orders negative items (new elements) first so they begin counting at 1 for later ID calculation EXEC sp_xml_removedocument @hdoc --- snip --- UPDATE E SET E.ElementTypeID = M.ElementTypeID FROM Element E INNER JOIN #ElementMetadata M ON E.ElementID = M.ElementID WHERE E.ElementID >= 1 AND M.ElementTypeID >= 1 The following query does the correlation of the negative new element ids to the newly inserted ones: UPDATE #ElementMetadata -- Correlate the new ElementIDs with the input rows SET NewElementID = Scope_Identity() - @@RowCount + DataID WHERE ElementID < 0 Other set-based queries do all the other work of validating that the attributes are allowed, are the correct data type, and inserting, updating, and deleting elements and attributes. I hope this brief run-down is useful to others some day! Converting ADO Recordsets to an XML stream was a huge winner for me as it saved all sorts of time and had a namespace and schema already defined that made the results come out correctly. Using a flatter XML format with 2 inputs was also much easier than sticking to some ideal about having everything in a single XML stream.

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Sensible Way to Pass Web Data to Sql Server Database

- by Emtucifor

After exploring several different ways to pass web data to a database for update purposes, I'm wondering if XML might be a good strategy. The database is currently SQL 2000. In a few months it will move to SQL 2005 and I will be able to change things if needed, but I need a SQL 2000 solution now. First of all, the database in question uses the EAV model. I know that this kind of database is generally highly frowned on, so for the purposes of this question, please just accept that this is not going to change. The current update method has the web server inserting values (that have all been converted first to their correct underlying types, then to sql_variant) to a temp table. A stored procedure is then run which expects the temp table to exist and it takes care of updating, inserting, or deleting things as needed. So far, only a single element has needed to be updated at a time. But now, there is a requirement to be able to edit multiple elements at once, and also to support hierarchical elements, each of which can have its own list of attributes. Here's some example XML I hand-typed to demonstrate what I'm thinking of. Note that in this database the Entity is Element and an ID of 0 signifies "create" aka an insert of a new item. <Elements> <Element ID="1234"> <Attr ID="221">Value</Attr> <Attr ID="225">287</Attr> <Attr ID="234"> <Element ID="99825"> <Attr ID="7">Value1</Attr> <Attr ID="8">Value2</Attr> <Attr ID="9" Action="delete" /> </Element> <Element ID="99826" Action="delete" /> <Element ID="0" Type="24"> <Attr ID="7">Value4</Attr> <Attr ID="8">Value5</Attr> <Attr ID="9">Value6</Attr> </Element> <Element ID="0" Type="24"> <Attr ID="7">Value7</Attr> <Attr ID="8">Value8</Attr> <Attr ID="9">Value9</Attr> </Element> </Attr> <Rel ID="3827" Action="delete" /> <Rel ID="2284" Role="parent"> <Element ID="3827" /> <Element ID="3829" /> <Attr ID="665">1</Attr> </Rel> <Rel ID="0" Type="23" Role="child"> <Element ID="3830" /> <Attr ID="67" </Rel> </Element> <Element ID="0" Type="87"> <Attr ID="221">Value</Attr> <Attr ID="225">569</Attr> <Attr ID="234"> <Element ID="0" Type="24"> <Attr ID="7">Value10</Attr> <Attr ID="8">Value11</Attr> <Attr ID="9">Value12</Attr> </Element> </Attr> </Element> <Element ID="1235" Action="delete" /> </Elements> Some Attributes are straight value types, such as AttrID 221. But AttrID 234 is a special "multi-value" type that can have a list of elements underneath it, and each one can have one or more values. Types only need to be presented when a new item is created, since the ElementID fully implies the type if it already exists. I'll probably support only passing in changed items (as detected by javascript). And there may be an Action="Delete" on Attr elements as well, since NULLs are treated as "unselected"--sometimes it's very important to know if a Yes/No question has intentionally been answered No or if no one's bothered to say Yes yet. There is also a different kind of data, a Relationship. At this time, those are updated through individual AJAX calls as things are edited in the UI, but I'd like to include those so that changes to relationships can be canceled (right now, once you change it, it's done). So those are really elements, too, but they are called Rel instead of Element. Relationships are implemented as ElementID1 and ElementID2, so the RelID 2284 in the XML above is in the database as: ElementID 2284 ElementID1 1234 ElementID2 3827 Having multiple children in one relationship isn't currently supported, but it would be nice later. Does this strategy and the example XML make sense? Is there a more sensible way? I'm just looking for some broad critique to help save me from going down a bad path. Any aspect that you'd like to comment on would be helpful. The web language happens to be Classic ASP, but that could change to ASP.Net at some point. A persistence engine like Linq or nHibernate is probably not acceptable right now--I just want to get this already working application enhanced without a huge amount of development time. I'll choose the answer that shows experience and has a balance of good warnings about what not to do, confirmations of what I'm planning to do, and recommendations about something else to do. I'll make it as objective as possible. P.S. I'd like to handle unicode characters as well as very long strings (10k +). UPDATE I have had this working for some time and I used the ADO Recordset Save-To-Stream trick to make creating the XML really easy. The result seems to be fairly fast, though if speed ever becomes a problem I may revisit this. In the meantime, my code works to handle any number of elements and attributes on the page at once, including updating, deleting, and creating new items all in one go. I settled on a scheme like so for all my elements: Existing data elements Example: input name e12345_a678 (element 12345, attribute 678), the input value is the value of the attribute. New elements Javascript copies a hidden template of the set of HTML elements needed for the type into the correct location on the page, increments a counter to get a new ID for this item, and prepends the number to the names of the form items. var newid = 0; function metadataAdd(reference, nameid, value) { var t = document.createElement('input'); t.setAttribute('name', nameid); t.setAttribute('id', nameid); t.setAttribute('type', 'hidden'); t.setAttribute('value', value); reference.appendChild(t); } function multiAdd(target, parentelementid, attrid, elementtypeid) { var proto = document.getElementById('a' + attrid + '_proto'); var instance = document.createElement('p'); target.parentNode.parentNode.insertBefore(instance, target.parentNode); var thisid = ++newid; instance.innerHTML = proto.innerHTML.replace(/{prefix}/g, 'n' + thisid + '_'); instance.id = 'n' + thisid; instance.className += ' new'; metadataAdd(instance, 'n' + thisid + '_p', parentelementid); metadataAdd(instance, 'n' + thisid + '_c', attrid); metadataAdd(instance, 'n' + thisid + '_t', elementtypeid); return false; } Example: Template input name _a678 becomes n1_a678 (a new element, the first one on the page, attribute 678). all attributes of this new element are tagged with the same prefix of n1. The next new item will be n2, and so on. Some hidden form inputs are created: n1_t, value is the elementtype of the element to be created n1_p, value is the parent id of the element (if it is a relationship) n1_c, value is the child id of the element (if it is a relationship) Deleting elements A hidden input is created in the form e12345_t with value set to 0. The existing controls displaying that attribute's values are disabled so they are not included in the form post. So "set type to 0" is treated as delete. With this scheme, every item on the page has a unique name and can be distinguished properly, and every action can be represented properly. When the form is posted, here's a sample of building one of the two recordsets used (classic ASP code): Set Data = Server.CreateObject("ADODB.Recordset") Data.Fields.Append "ElementID", adInteger, 4, adFldKeyColumn Data.Fields.Append "AttrID", adInteger, 4, adFldKeyColumn Data.Fields.Append "Value", adLongVarWChar, 2147483647, adFldIsNullable Or adFldMayBeNull Data.CursorLocation = adUseClient Data.CursorType = adOpenDynamic Data.Open This is the recordset for values, the other is for the elements themselves. I step through the posted form and for the element recordset use a Scripting.Dictionary populated with instances of a custom Class that has the properties I need, so that I can add the values piecemeal, since they don't always come in order. New elements are added as negative to distinguish them from regular elements (rather than requiring a separate column to indicate if it is new or addresses an existing element). I use regular expression to tear apart the form keys: "^(e|n)([0-9]{1,10})_(a|p|t|c)([0-9]{0,10})$" Then, adding an attribute looks like this. Data.AddNew ElementID.Value = DataID AttrID.Value = Integerize(Matches(0).SubMatches(3)) AttrValue.Value = Request.Form(Key) Data.Update ElementID, AttrID, and AttrValue are references to the fields of the recordset. This method is hugely faster than using Data.Fields("ElementID").Value each time. I loop through the Dictionary of element updates and ignore any that don't have all the proper information, adding the good ones to the recordset. Then I call my data-updating stored procedure like so: Set Cmd = Server.CreateObject("ADODB.Command") With Cmd Set .ActiveConnection = MyDBConn .CommandType = adCmdStoredProc .CommandText = "DataPost" .Prepared = False .Parameters.Append .CreateParameter("@ElementMetadata", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Element)) .Parameters.Append .CreateParameter("@ElementData", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Data)) End With Result.Open Cmd ' previously created recordset object with options set Here's the function that does the xml conversion: Private Function XMLFromRecordset(Recordset) Dim Stream Set Stream = Server.CreateObject("ADODB.Stream") Stream.Open Recordset.Save Stream, adPersistXML Stream.Position = 0 XMLFromRecordset = Stream.ReadText End Function Just in case the web page needs to know, the SP returns a recordset of any new elements, showing their page value and their created value (so I can see that n1 is now e12346 for example). Here are some key snippets from the stored procedure. Note this is SQL 2000 for now, though I'll be able to switch to 2005 soon: CREATE PROCEDURE [dbo].[DataPost] @ElementMetaData ntext, @ElementData ntext AS DECLARE @hdoc int --- snip --- EXEC sp_xml_preparedocument @hdoc OUTPUT, @ElementMetaData, '<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" />' INSERT #ElementMetadata (ElementID, ElementTypeID, ElementID1, ElementID2) SELECT * FROM OPENXML(@hdoc, '/xml/rs:data/rs:insert/z:row', 0) WITH ( ElementID int, ElementTypeID int, ElementID1 int, ElementID2 int ) ORDER BY ElementID -- orders negative items (new elements) first so they begin counting at 1 for later ID calculation EXEC sp_xml_removedocument @hdoc --- snip --- UPDATE E SET E.ElementTypeID = M.ElementTypeID FROM Element E INNER JOIN #ElementMetadata M ON E.ElementID = M.ElementID WHERE E.ElementID >= 1 AND M.ElementTypeID >= 1 The following query does the correlation of the negative new element ids to the newly inserted ones: UPDATE #ElementMetadata -- Correlate the new ElementIDs with the input rows SET NewElementID = Scope_Identity() - @@RowCount + DataID WHERE ElementID < 0 Other set-based queries do all the other work of validating that the attributes are allowed, are the correct data type, and inserting, updating, and deleting elements and attributes. I hope this brief run-down is useful to others some day! Converting ADO Recordsets to an XML stream was a huge winner for me as it saved all sorts of time and had a namespace and schema already defined that made the results come out correctly. Using a flatter XML format with 2 inputs was also much easier than sticking to some ideal about having everything in a single XML stream.

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Passing data between android ListActivities in Java

- by Will Janes

I am new to Android! I am having a problem getting this code to work... Basically I Go from one list activity to another and pass the text from a list item through the intent of the activity to the new list view, then retrieve that text in the new list activity and then preform a http request based on value of that list item. Log Cat 04-05 17:47:32.370: E/AndroidRuntime(30135): FATAL EXCEPTION: main 04-05 17:47:32.370: E/AndroidRuntime(30135): java.lang.ClassCastException:android.widget.LinearLayout 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.thickcrustdesigns.ufood.CatogPage$1.onItemClick(CatogPage.java:66) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.AdapterView.performItemClick(AdapterView.java:284) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.ListView.performItemClick(ListView.java:3731) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1959) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Handler.handleCallback(Handler.java:587) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Handler.dispatchMessage(Handler.java:92) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Looper.loop(Looper.java:130) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.app.ActivityThread.main(ActivityThread.java:3691) 04-05 17:47:32.370: E/AndroidRuntime(30135): at java.lang.reflect.Method.invokeNative(Native Method) 04-05 17:47:32.370: E/AndroidRuntime(30135): at java.lang.reflect.Method.invoke(Method.java:507) 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 04-05 17:47:32.370: E/AndroidRuntime(30135): at dalvik.system.NativeStart.main(Native Method) ListActivity 1 package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.ListView; import android.widget.TextView; public class CatogPage extends ListActivity { ListView listView1; Button btn_bk; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.definition_main); btn_bk = (Button) findViewById(R.id.btn_bk); listView1 = (ListView) findViewById(android.R.id.list); ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "categories")); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); ListView lv = getListView(); lv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { TextView tv = (TextView) view; String p = tv.getText().toString(); Intent i = new Intent(getApplicationContext(), Results.class); i.putExtra("category", p); startActivity(i); } }); btn_bk.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { Intent i = new Intent(getApplicationContext(), UFoodAppActivity.class); startActivity(i); } }); } } **ListActivity 2** package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.os.Bundle; import android.widget.ListView; public class Results extends ListActivity { ListView listView1; enum Category { Chicken, Beef, Chinese, Cocktails, Curry, Deserts, Fish, ForOne { public String toString() { return "For One"; } }, Lamb, LightBites { public String toString() { return "Light Bites"; } }, Pasta, Pork, Vegetarian } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.definition_main); listView1 = (ListView) findViewById(android.R.id.list); Bundle data = getIntent().getExtras(); String category = data.getString("category"); Category cat = Category.valueOf(category); String value = null; switch (cat) { case Chicken: value = "Chicken"; break; case Beef: value = "Beef"; break; case Chinese: value = "Chinese"; break; case Cocktails: value = "Cocktails"; break; case Curry: value = "Curry"; break; case Deserts: value = "Deserts"; break; case Fish: value = "Fish"; break; case ForOne: value = "ForOne"; break; case Lamb: value = "Lamb"; break; case LightBites: value = "LightBites"; break; case Pasta: value = "Pasta"; break; case Pork: value = "Pork"; break; case Vegetarian: value = "Vegetarian"; } ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "category")); nvp.add(new BasicNameValuePair("cat", value)); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); } } Request package com.thickcrustdesigns.ufood; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONArray; import org.json.JSONObject; import android.content.Context; import android.util.Log; import android.widget.Toast; public class Request { @SuppressWarnings("null") public static ArrayList<JSONObject> fetchData(Context context, ArrayList<NameValuePair> nvp) { ArrayList<JSONObject> listItems = new ArrayList<JSONObject>(); InputStream is = null; try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost( "http://co350-11d.projects02.glos.ac.uk/php/database.php"); httppost.setEntity(new UrlEncodedFormEntity(nvp)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); } catch (Exception e) { Log.e("log_tag", "Error in http connection" + e.toString()); } // convert response to string String result = ""; try { BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8); InputStream stream = null; StringBuilder sb = null; while ((result = reader.readLine()) != null) { sb.append(result + "\n"); } stream.close(); result = sb.toString(); } catch (Exception e) { Log.e("log_tag", "Error converting result " + e.toString()); } try { JSONArray jArray = new JSONArray(result); for (int i = 0; i < jArray.length(); i++) { JSONObject jo = jArray.getJSONObject(i); listItems.add(jo); } } catch (Exception e) { Toast.makeText(context.getApplicationContext(), "None Found!", Toast.LENGTH_LONG).show(); } return listItems; } } Any help would be grateful! Many Thanks EDIT Sorry very tired so missed out my 2nd ListActivity package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.os.Bundle; import android.widget.ListView; public class Results extends ListActivity { ListView listView1; enum Category { Chicken, Beef, Chinese, Cocktails, Curry, Deserts, Fish, ForOne { public String toString() { return "For One"; } }, Lamb, LightBites { public String toString() { return "Light Bites"; } }, Pasta, Pork, Vegetarian } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.definition_main); listView1 = (ListView) findViewById(android.R.id.list); Bundle data = getIntent().getExtras(); String category = data.getString("category"); Category cat = Category.valueOf(category); String value = null; switch (cat) { case Chicken: value = "Chicken"; break; case Beef: value = "Beef"; break; case Chinese: value = "Chinese"; break; case Cocktails: value = "Cocktails"; break; case Curry: value = "Curry"; break; case Deserts: value = "Deserts"; break; case Fish: value = "Fish"; break; case ForOne: value = "ForOne"; break; case Lamb: value = "Lamb"; break; case LightBites: value = "LightBites"; break; case Pasta: value = "Pasta"; break; case Pork: value = "Pork"; break; case Vegetarian: value = "Vegetarian"; } ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "category")); nvp.add(new BasicNameValuePair("cat", value)); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); } } Sorry again! Cheers guys!

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ASP.NET Podcast Show #148 - ASP.NET WebForms to build a Mobile Web Application

- by Wallym

Check the podcast site for the original url. This is the video and source code for an ASP.NET WebForms app that I wrote that is optimized for the iPhone and mobile environments. Subscribe to everything. Subscribe to WMV. Subscribe to M4V for iPhone/iPad. Subscribe to MP3. Download WMV. Download M4V for iPhone/iPad. Download MP3. Link to iWebKit. Source Code: <%@ Page Title="MapSplore" Language="C#" MasterPageFile="iPhoneMaster.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="AT_iPhone_Default" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"></asp:Content><asp:Content ID="Content2" ContentPlaceHolderID="Content" Runat="Server" ClientIDMode="Static"> <asp:ScriptManager ID="sm" runat="server" EnablePartialRendering="true" EnableHistory="false" EnableCdn="true" /> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true"></script> <script language="javascript" type="text/javascript">  </script> <asp:HiddenField ID="Latitude" runat="server" /> <asp:HiddenField ID="Longitude" runat="server" /> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js%22%3E%3C/script> <script language="javascript" type="text/javascript"> $(document).ready(function () { GetLocation(); setupMapDiv(); setupPlaceIveBeen(); }); function GetLocation() { if (navigator.geolocation != null) { navigator.geolocation.getCurrentPosition(getData); } else { var mess = document.getElementById('<%=Message.ClientID %>'); mess.innerHTML = "Sorry, your browser does not support geolocation. " + "Try the latest version of Safari on the iPhone, Android browser, or the latest version of FireFox."; } } function UpdateLocation_Click() { GetLocation(); } function getData(position) { var latitude = position.coords.latitude; var longitude = position.coords.longitude; var hdLat = document.getElementById('<%=Latitude.ClientID %>'); var hdLon = document.getElementById('<%=Longitude.ClientID %>'); hdLat.value = latitude; hdLon.value = longitude; } </script> <asp:Label ID="Message" runat="server" /> <asp:UpdatePanel ID="upl" runat="server"> <ContentTemplate> <asp:Panel ID="pnlStart" runat="server" Visible="true"> <div id="topbar"> <div id="title">MapSplore</div> </div> <div id="content"> <ul class="pageitem"> <li class="menu"> <asp:LinkButton ID="lbLocalDeals" runat="server" onclick="lbLocalDeals_Click"> <asp:Image ID="imLocalDeals" runat="server" ImageUrl="~/Images/ArtFavor_Money_Bag_Icon.png" Height="30" /> <span class="name">Local Deals.</span> <span class="arrow"></span> </asp:LinkButton> </li> <li class="menu"> <asp:LinkButton ID="lbLocalPlaces" runat="server" onclick="lbLocalPlaces_Click"> <asp:Image ID="imLocalPlaces" runat="server" ImageUrl="~/Images/Andy_Houses_on_the_horizon_-_Starburst_remix.png" Height="30" /> <span class="name">Local Places.</span> <span class="arrow"></span> </asp:LinkButton> </li> <li class="menu"> <asp:LinkButton ID="lbWhereIveBeen" runat="server" onclick="lbWhereIveBeen_Click"> <asp:Image ID="imImHere" runat="server" ImageUrl="~/Images/ryanlerch_flagpole.png" Height="30" /> <span class="name">I've been here.</span> <span class="arrow"></span> </asp:LinkButton> </li> <li class="menu"> <asp:LinkButton ID="lbMyStats" runat="server"> <asp:Image ID="imMyStats" runat="server" ImageUrl="~/Images/Anonymous_Spreadsheet.png" Height="30" /> <span class="name">My Stats.</span> <span class="arrow"></span> </asp:LinkButton> </li> <li class="menu"> <asp:LinkButton ID="lbAddAPlace" runat="server" onclick="lbAddAPlace_Click"> <asp:Image ID="imAddAPlace" runat="server" ImageUrl="~/Images/jean_victor_balin_add.png" Height="30" /> <span class="name">Add a Place.</span> <span class="arrow"></span> </asp:LinkButton> </li> <li class="button"> <input type="button" value="Update Your Current Location" onclick="UpdateLocation_Click()"> </li> </ul> </div> </asp:Panel> <div> <asp:Panel ID="pnlCoupons" runat="server" Visible="false"> <div id="topbar"> <div id="title">MapSplore</div> <div id="leftbutton"> <asp:LinkButton runat="server" Text="Return" ID="ReturnFromDeals" OnClick="ReturnFromDeals_Click" /></div></div> <div class="content"> <asp:ListView ID="lvCoupons" runat="server"> <LayoutTemplate> <ul class="pageitem" runat="server"> <asp:PlaceHolder ID="itemPlaceholder" runat="server" /> </ul> </LayoutTemplate> <ItemTemplate> <li class="menu"> <asp:LinkButton ID="lbBusiness" runat="server" Text='<%#Eval("Place.Name") %>' OnClick="lbBusiness_Click"> <span class="comment"> <asp:Label ID="lblAddress" runat="server" Text='<%#Eval("Place.Address1") %>' /> <asp:Label ID="lblDis" runat="server" Text='<%# Convert.ToString(Convert.ToInt32(Eval("Place.Distance"))) + " meters" %>' CssClass="smallText" /> <asp:HiddenField ID="hdPlaceId" runat="server" Value='<%#Eval("PlaceId") %>' /> <asp:HiddenField ID="hdGeoPromotionId" runat="server" Value='<%#Eval("GeoPromotionId") %>' /> </span> <span class="arrow"></span> </asp:LinkButton></li></ItemTemplate></asp:ListView><asp:GridView ID="gvCoupons" runat="server" AutoGenerateColumns="false"> <HeaderStyle BackColor="Silver" /> <AlternatingRowStyle BackColor="Wheat" /> <Columns> <asp:TemplateField AccessibleHeaderText="Business" HeaderText="Business"> <ItemTemplate> <asp:Image ID="imPlaceType" runat="server" Text='<%#Eval("Type") %>' ImageUrl='<%#Eval("Image") %>' /> <asp:LinkButton ID="lbBusiness" runat="server" Text='<%#Eval("Name") %>' OnClick="lbBusiness_Click" /> <asp:LinkButton ID="lblAddress" runat="server" Text='<%#Eval("Address1") %>' CssClass="smallText" /> <asp:Label ID="lblDis" runat="server" Text='<%# Convert.ToString(Convert.ToInt32(Eval("Distance"))) + " meters" %>' CssClass="smallText" /> <asp:HiddenField ID="hdPlaceId" runat="server" Value='<%#Eval("PlaceId") %>' /> <asp:HiddenField ID="hdGeoPromotionId" runat="server" Value='<%#Eval("GeoPromotionId") %>' /> <asp:Label ID="lblInfo" runat="server" Visible="false" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </div> </asp:Panel> <asp:Panel ID="pnlPlaces" runat="server" Visible="false"> <div id="topbar"> <div id="title"> MapSplore</div><div id="leftbutton"> <asp:LinkButton runat="server" Text="Return" ID="ReturnFromPlaces" OnClick="ReturnFromPlaces_Click" /></div></div> <div id="content"> <asp:ListView ID="lvPlaces" runat="server"> <LayoutTemplate> <ul id="ulPlaces" class="pageitem" runat="server"> <asp:PlaceHolder ID="itemPlaceholder" runat="server" /> <li class="menu"> <asp:LinkButton ID="lbNotListed" runat="server" CssClass="name" OnClick="lbNotListed_Click"> Place not listed <span class="arrow"></span> </asp:LinkButton> </li> </ul> </LayoutTemplate> <ItemTemplate> <li class="menu"> <asp:LinkButton ID="lbImHere" runat="server" CssClass="name" OnClick="lbImHere_Click"> <%#DisplayName(Eval("Name")) %>  <%# Convert.ToString(Convert.ToInt32(Eval("Distance"))) + " meters" %> <asp:HiddenField ID="hdPlaceId" runat="server" Value='<%#Eval("PlaceId") %>' /> <span class="arrow"></span> </asp:LinkButton></li></ItemTemplate></asp:ListView> </div> </asp:Panel> <asp:Panel ID="pnlImHereNow" runat="server" Visible="false"> <div id="topbar"> <div id="title"> MapSplore</div><div id="leftbutton"> <asp:LinkButton runat="server" Text="Places" ID="lbImHereNowReturn" OnClick="lbImHereNowReturn_Click" /></div></div> <div id="rightbutton"> <asp:LinkButton runat="server" Text="Beginning" ID="lbBackToBeginning" OnClick="lbBackToBeginning_Click" /> </div> <div id="content"> <ul class="pageitem"> <asp:HiddenField ID="hdPlaceId" runat="server" /> <asp:HiddenField ID="hdPlaceLat" runat="server" /> <asp:HiddenField ID="hdPlaceLon" runat="server" /> <asp:HiddenField ID="hdPlaceTitle" runat="server" /> <asp:Button ID="btnImHereNow" runat="server" Text="I'm here" OnClick="btnImHereNow_Click" /> <asp:Label ID="lblPlaceTitle" runat="server" /><br /> <asp:TextBox ID="txtWhatsHappening" runat="server" TextMode="MultiLine" Rows="2" style="width:300px" /><br /> <div id="divImHere" style="width:300px; height:300px"></div> </div> </ul> </asp:Panel> <asp:Panel runat="server" ID="pnlIveBeenHere" Visible="false"> <div id="topbar"> <div id="title"> Where I've been</div><div id="leftbutton"> <asp:LinkButton ID="lbIveBeenHereBack" runat="server" Text="Back" OnClick="lbIveBeenHereBack_Click" /></div></div> <div id="content"> <asp:ListView ID="lvWhereIveBeen" runat="server"> <LayoutTemplate> <ul id="ulWhereIveBeen" class="pageitem" runat="server"> <asp:PlaceHolder ID="itemPlaceholder" runat="server" /> </ul> </LayoutTemplate> <ItemTemplate> <li class="menu" runat="server"> <asp:LinkButton ID="lbPlaceIveBeen" runat="server" OnClick="lbPlaceIveBeen_Click" CssClass="name"> <asp:Label ID="lblPlace" runat="server" Text='<%#Eval("PlaceName") %>' /> at <asp:Label ID="lblTime" runat="server" Text='<%#Eval("ATTime") %>' CssClass="content" /> <asp:HiddenField ID="hdATID" runat="server" Value='<%#Eval("ATID") %>' /> <span class="arrow"></span> </asp:LinkButton> </li> </ItemTemplate> </asp:ListView> </div> </asp:Panel> <asp:Panel runat="server" ID="pnlPlaceIveBeen" Visible="false"> <div id="topbar"> <div id="title"> I've been here </div> <div id="leftbutton"> <asp:LinkButton ID="lbPlaceIveBeenBack" runat="server" Text="Back" OnClick="lbPlaceIveBeenBack_Click" /> </div> <div id="rightbutton"> <asp:LinkButton ID="lbPlaceIveBeenBeginning" runat="server" Text="Beginning" OnClick="lbPlaceIveBeenBeginning_Click" /> </div> </div> <div id="content"> <ul class="pageitem"> <li> <asp:HiddenField ID="hdPlaceIveBeenPlaceId" runat="server" /> <asp:HiddenField ID="hdPlaceIveBeenLatitude" runat="server" /> <asp:HiddenField ID="hdPlaceIveBeenLongitude" runat="server" /> <asp:Label ID="lblPlaceIveBeenName" runat="server" /><br /> <asp:Label ID="lblPlaceIveBeenAddress" runat="server" /><br /> <asp:Label ID="lblPlaceIveBeenCity" runat="server" />, <asp:Label ID="lblPlaceIveBeenState" runat="server" /> <asp:Label ID="lblPlaceIveBeenZipCode" runat="server" /><br /> <asp:Label ID="lblPlaceIveBeenCountry" runat="server" /><br /> <div id="divPlaceIveBeen" style="width:300px; height:300px"></div> </li> </ul> </div> </asp:Panel> <asp:Panel ID="pnlAddPlace" runat="server" Visible="false"> <div id="topbar"><div id="title">MapSplore</div><div id="leftbutton"><asp:LinkButton ID="lbAddPlaceReturn" runat="server" Text="Back" OnClick="lbAddPlaceReturn_Click" /></div><div id="rightnav"></div></div><div id="content"> <ul class="pageitem"> <li id="liPlaceAddMessage" runat="server" visible="false"> <asp:Label ID="PlaceAddMessage" runat="server" /> </li> <li class="bigfield"> <asp:TextBox ID="txtPlaceName" runat="server" placeholder="Name of Establishment" /> </li> <li class="bigfield"> <asp:TextBox ID="txtAddress1" runat="server" placeholder="Address 1" /> </li> <li class="bigfield"> <asp:TextBox ID="txtCity" runat="server" placeholder="City" /> </li> <li class="select"> <asp:DropDownList ID="ddlProvince" runat="server" placeholder="Select State" /> <span class="arrow"></span> </li> <li class="bigfield"> <asp:TextBox ID="txtZipCode" runat="server" placeholder="Zip Code" /> </li> <li class="select"> <asp:DropDownList ID="ddlCountry" runat="server" onselectedindexchanged="ddlCountry_SelectedIndexChanged" /> <span class="arrow"></span> </li> <li class="bigfield"> <asp:TextBox ID="txtPhoneNumber" runat="server" placeholder="Phone Number" /> </li> <li class="checkbox"> <span class="name">You Here Now:</span> <asp:CheckBox ID="cbYouHereNow" runat="server" Checked="true" /> </li> <li class="button"> <asp:Button ID="btnAdd" runat="server" Text="Add Place" onclick="btnAdd_Click" /> </li> </ul></div> </asp:Panel> <asp:Panel ID="pnlImHere" runat="server" Visible="false"> <asp:TextBox ID="txtImHere" runat="server" TextMode="MultiLine" Rows="3" Columns="40" /><br /> <asp:DropDownList ID="ddlPlace" runat="server" /><br /> <asp:Button ID="btnHere" runat="server" Text="Tell Everyone I'm Here" onclick="btnHere_Click" /><br /> </asp:Panel> </div> </ContentTemplate> </asp:UpdatePanel> </asp:Content> Code Behind .cs file: using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using LocationDataModel; public partial class AT_iPhone_Default : ViewStatePage{ private iPhoneDevice ipd; protected void Page_Load(object sender, EventArgs e) { LocationDataEntities lde = new LocationDataEntities(); if (!Page.IsPostBack) { var Countries = from c in lde.Countries select c; foreach (Country co in Countries) { ddlCountry.Items.Add(new ListItem(co.Name, co.CountryId.ToString())); } ddlCountry_SelectedIndexChanged(ddlCountry, null); if (AppleIPhone.IsIPad()) ipd = iPhoneDevice.iPad; if (AppleIPhone.IsIPhone()) ipd = iPhoneDevice.iPhone; if (AppleIPhone.IsIPodTouch()) ipd = iPhoneDevice.iPodTouch; } } protected void btnPlaces_Click(object sender, EventArgs e) { } protected void btnAdd_Click(object sender, EventArgs e) { bool blImHere = cbYouHereNow.Checked; string Place = txtPlaceName.Text, Address1 = txtAddress1.Text, City = txtCity.Text, ZipCode = txtZipCode.Text, PhoneNumber = txtPhoneNumber.Text, ProvinceId = ddlProvince.SelectedItem.Value, CountryId = ddlCountry.SelectedItem.Value; int iProvinceId, iCountryId; double dLatitude, dLongitude; DataAccess da = new DataAccess(); if ((!String.IsNullOrEmpty(ProvinceId)) && (!String.IsNullOrEmpty(CountryId))) { iProvinceId = Convert.ToInt32(ProvinceId); iCountryId = Convert.ToInt32(CountryId); if (blImHere) { dLatitude = Convert.ToDouble(Latitude.Value); dLongitude = Convert.ToDouble(Longitude.Value); da.StorePlace(Place, Address1, String.Empty, City, iProvinceId, ZipCode, iCountryId, PhoneNumber, dLatitude, dLongitude); } else { da.StorePlace(Place, Address1, String.Empty, City, iProvinceId, ZipCode, iCountryId, PhoneNumber); } liPlaceAddMessage.Visible = true; PlaceAddMessage.Text = "Awesome, your place has been added. Add Another!"; txtPlaceName.Text = String.Empty; txtAddress1.Text = String.Empty; txtCity.Text = String.Empty; ddlProvince.SelectedIndex = -1; txtZipCode.Text = String.Empty; txtPhoneNumber.Text = String.Empty; } else { liPlaceAddMessage.Visible = true; PlaceAddMessage.Text = "Please select a State and a Country."; } } protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e) { string CountryId = ddlCountry.SelectedItem.Value; if (!String.IsNullOrEmpty(CountryId)) { int iCountryId = Convert.ToInt32(CountryId); LocationDataModel.LocationDataEntities lde = new LocationDataModel.LocationDataEntities(); var prov = from p in lde.Provinces where p.CountryId == iCountryId orderby p.ProvinceName select p; ddlProvince.Items.Add(String.Empty); foreach (Province pr in prov) { ddlProvince.Items.Add(new ListItem(pr.ProvinceName, pr.ProvinceId.ToString())); } } else { ddlProvince.Items.Clear(); } } protected void btnImHere_Click(object sender, EventArgs e) { int i = 0; DataAccess da = new DataAccess(); double Lat = Convert.ToDouble(Latitude.Value), Lon = Convert.ToDouble(Longitude.Value); List<Place> lp = da.NearByLocations(Lat, Lon); foreach (Place p in lp) { ListItem li = new ListItem(p.Name, p.PlaceId.ToString()); if (i == 0) { li.Selected = true; } ddlPlace.Items.Add(li); i++; } pnlAddPlace.Visible = false; pnlImHere.Visible = true; } protected void lbImHere_Click(object sender, EventArgs e) { string UserName = Membership.GetUser().UserName; ListViewItem lvi = (ListViewItem)(((LinkButton)sender).Parent); HiddenField hd = (HiddenField)lvi.FindControl("hdPlaceId"); long PlaceId = Convert.ToInt64(hd.Value); double dLatitude = Convert.ToDouble(Latitude.Value); double dLongitude = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); Place pl = da.GetPlace(PlaceId); pnlImHereNow.Visible = true; pnlPlaces.Visible = false; hdPlaceId.Value = PlaceId.ToString(); hdPlaceLat.Value = pl.Latitude.ToString(); hdPlaceLon.Value = pl.Longitude.ToString(); hdPlaceTitle.Value = pl.Name; lblPlaceTitle.Text = pl.Name; } protected void btnHere_Click(object sender, EventArgs e) { string UserName = Membership.GetUser().UserName; string WhatsH = txtImHere.Text; long PlaceId = Convert.ToInt64(ddlPlace.SelectedValue); double dLatitude = Convert.ToDouble(Latitude.Value); double dLongitude = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); da.StoreUserAT(UserName, PlaceId, WhatsH, dLatitude, dLongitude); } protected void btnLocalCoupons_Click(object sender, EventArgs e) { double dLatitude = Convert.ToDouble(Latitude.Value); double dLongitude = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); } protected void lbBusiness_Click(object sender, EventArgs e) { string UserName = Membership.GetUser().UserName; GridViewRow gvr = (GridViewRow)(((LinkButton)sender).Parent.Parent); HiddenField hd = (HiddenField)gvr.FindControl("hdPlaceId"); string sPlaceId = hd.Value; Int64 PlaceId; if (!String.IsNullOrEmpty(sPlaceId)) { PlaceId = Convert.ToInt64(sPlaceId); } } protected void lbLocalDeals_Click(object sender, EventArgs e) { double dLatitude = Convert.ToDouble(Latitude.Value); double dLongitude = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); pnlCoupons.Visible = true; pnlStart.Visible = false; List<GeoPromotion> lgp = da.NearByDeals(dLatitude, dLongitude); lvCoupons.DataSource = lgp; lvCoupons.DataBind(); } protected void lbLocalPlaces_Click(object sender, EventArgs e) { DataAccess da = new DataAccess(); double Lat = Convert.ToDouble(Latitude.Value); double Lon = Convert.ToDouble(Longitude.Value); List<LocationDataModel.Place> places = da.NearByLocations(Lat, Lon); lvPlaces.DataSource = places; lvPlaces.SelectedIndex = -1; lvPlaces.DataBind(); pnlPlaces.Visible = true; pnlStart.Visible = false; } protected void ReturnFromPlaces_Click(object sender, EventArgs e) { pnlPlaces.Visible = false; pnlStart.Visible = true; } protected void ReturnFromDeals_Click(object sender, EventArgs e) { pnlCoupons.Visible = false; pnlStart.Visible = true; } protected void btnImHereNow_Click(object sender, EventArgs e) { long PlaceId = Convert.ToInt32(hdPlaceId.Value); string UserName = Membership.GetUser().UserName; string WhatsHappening = txtWhatsHappening.Text; double UserLat = Convert.ToDouble(Latitude.Value); double UserLon = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); da.StoreUserAT(UserName, PlaceId, WhatsHappening, UserLat, UserLon); } protected void lbImHereNowReturn_Click(object sender, EventArgs e) { pnlImHereNow.Visible = false; pnlPlaces.Visible = true; } protected void lbBackToBeginning_Click(object sender, EventArgs e) { pnlStart.Visible = true; pnlImHereNow.Visible = false; } protected void lbWhereIveBeen_Click(object sender, EventArgs e) { string UserName = Membership.GetUser().UserName; pnlStart.Visible = false; pnlIveBeenHere.Visible = true; DataAccess da = new DataAccess(); lvWhereIveBeen.DataSource = da.UserATs(UserName, 0, 15); lvWhereIveBeen.DataBind(); } protected void lbIveBeenHereBack_Click(object sender, EventArgs e) { pnlIveBeenHere.Visible = false; pnlStart.Visible = true; } protected void lbPlaceIveBeen_Click(object sender, EventArgs e) { LinkButton lb = (LinkButton)sender; ListViewItem lvi = (ListViewItem)lb.Parent.Parent; HiddenField hdATID = (HiddenField)lvi.FindControl("hdATID"); Int64 ATID = Convert.ToInt64(hdATID.Value); DataAccess da = new DataAccess(); pnlIveBeenHere.Visible = false; pnlPlaceIveBeen.Visible = true; var plac = da.GetPlaceViaATID(ATID); hdPlaceIveBeenPlaceId.Value = plac.PlaceId.ToString(); hdPlaceIveBeenLatitude.Value = plac.Latitude.ToString(); hdPlaceIveBeenLongitude.Value = plac.Longitude.ToString(); lblPlaceIveBeenName.Text = plac.Name; lblPlaceIveBeenAddress.Text = plac.Address1; lblPlaceIveBeenCity.Text = plac.City; lblPlaceIveBeenState.Text = plac.Province.ProvinceName; lblPlaceIveBeenZipCode.Text = plac.ZipCode; lblPlaceIveBeenCountry.Text = plac.Country.Name; } protected void lbNotListed_Click(object sender, EventArgs e) { SetupAddPoint(); pnlPlaces.Visible = false; } protected void lbAddAPlace_Click(object sender, EventArgs e) { SetupAddPoint(); } private void SetupAddPoint() { double lat = Convert.ToDouble(Latitude.Value); double lon = Convert.ToDouble(Longitude.Value); DataAccess da = new DataAccess(); var zip = da.WhereAmIAt(lat, lon); if (zip.Count > 0) { var z0 = zip[0]; txtCity.Text = z0.City; txtZipCode.Text = z0.ZipCode; ddlProvince.ClearSelection(); if (z0.ProvinceId.HasValue == true) { foreach (ListItem li in ddlProvince.Items) { if (li.Value == z0.ProvinceId.Value.ToString()) { li.Selected = true; break; } } } } pnlAddPlace.Visible = true; pnlStart.Visible = false; } protected void lbAddPlaceReturn_Click(object sender, EventArgs e) { pnlAddPlace.Visible = false; pnlStart.Visible = true; liPlaceAddMessage.Visible = false; PlaceAddMessage.Text = String.Empty; } protected void lbPlaceIveBeenBack_Click(object sender, EventArgs e) { pnlIveBeenHere.Visible = true; pnlPlaceIveBeen.Visible = false; } protected void lbPlaceIveBeenBeginning_Click(object sender, EventArgs e) { pnlPlaceIveBeen.Visible = false; pnlStart.Visible = true; } protected string DisplayName(object val) { string strVal = Convert.ToString(val); if (AppleIPhone.IsIPad()) { ipd = iPhoneDevice.iPad; } if (AppleIPhone.IsIPhone()) { ipd = iPhoneDevice.iPhone; } if (AppleIPhone.IsIPodTouch()) { ipd = iPhoneDevice.iPodTouch; } return (iPhoneHelper.DisplayContentOnMenu(strVal, ipd)); }} iPhoneHelper.cs file: using System;using System.Collections.Generic;using System.Linq;using System.Web; public enum iPhoneDevice{ iPhone, iPodTouch, iPad}/// <summary>/// Summary description for iPhoneHelper/// </summary>/// public class iPhoneHelper{ public iPhoneHelper() { // // TODO: Add constructor logic here // } // This code is stupid in retrospect. Use css to solve this problem public static string DisplayContentOnMenu(string val, iPhoneDevice ipd) { string Return = val; string Elipsis = "..."; int iPadMaxLength = 30; int iPhoneMaxLength = 15; if (ipd == iPhoneDevice.iPad) { if (Return.Length > iPadMaxLength) { Return = Return.Substring(0, iPadMaxLength - Elipsis.Length) + Elipsis; } } else { if (Return.Length > iPhoneMaxLength) { Return = Return.Substring(0, iPhoneMaxLength - Elipsis.Length) + Elipsis; } } return (Return); }} Source code for the ViewStatePage: using System;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls; /// <summary>/// Summary description for BasePage/// </summary>#region Base class for a page.public class ViewStatePage : System.Web.UI.Page{ PageStatePersisterToDatabase myPageStatePersister; public ViewStatePage() : base() { myPageStatePersister = new PageStatePersisterToDatabase(this); } protected override PageStatePersister PageStatePersister { get { return myPageStatePersister; } } }#endregion #region This class will override the page persistence to store page state in a database.public class PageStatePersisterToDatabase : PageStatePersister{ private string ViewStateKeyField = "__VIEWSTATE_KEY"; private string _exNoConnectionStringFound = "No Database Configuration information is in the web.config."; public PageStatePersisterToDatabase(Page page) : base(page) { } public override void Load() { // Get the cache key from the web form data System.Int64 key = Convert.ToInt64(Page.Request.Params[ViewStateKeyField]); Pair state = this.LoadState(key); // Abort if cache object is not of type Pair if (state == null) throw new ApplicationException("Missing valid " + ViewStateKeyField); // Set view state and control state ViewState = state.First; ControlState = state.Second; } public override void Save() { // No processing needed if no states available if (ViewState == null && ControlState != null) return; System.Int64 key; IStateFormatter formatter = this.StateFormatter; Pair statePair = new Pair(ViewState, ControlState); // Serialize the statePair object to a string. string serializedState = formatter.Serialize(statePair); // Save the ViewState and get a unique identifier back. key = SaveState(serializedState); // Register hidden field to store cache key in // Page.ClientScript does not work properly with Atlas. //Page.ClientScript.RegisterHiddenField(ViewStateKeyField, key.ToString()); ScriptManager.RegisterHiddenField(this.Page, ViewStateKeyField, key.ToString()); } private System.Int64 SaveState(string PageState) { System.Int64 i64Key = 0; string strConn = String.Empty, strProvider = String.Empty; string strSql = "insert into tblPageState ( SerializedState ) values ( '" + SqlEscape(PageState) + "');select scope_identity();"; SqlConnection sqlCn; SqlCommand sqlCm; try { GetDBConnectionString(ref strConn, ref strProvider); sqlCn = new SqlConnection(strConn); sqlCm = new SqlCommand(strSql, sqlCn); sqlCn.Open(); i64Key = Convert.ToInt64(sqlCm.ExecuteScalar()); if (sqlCn.State != ConnectionState.Closed) { sqlCn.Close(); } sqlCn.Dispose(); sqlCm.Dispose(); } finally { sqlCn = null; sqlCm = null; } return i64Key; } private Pair LoadState(System.Int64 iKey) { string strConn = String.Empty, strProvider = String.Empty, SerializedState = String.Empty, strMinutesInPast = GetMinutesInPastToDelete(); Pair PageState; string strSql = "select SerializedState from tblPageState where tblPageStateID=" + iKey.ToString() + ";" + "delete from tblPageState where DateUpdated<DateAdd(mi, " + strMinutesInPast + ", getdate());"; SqlConnection sqlCn; SqlCommand sqlCm; try { GetDBConnectionString(ref strConn, ref strProvider); sqlCn = new SqlConnection(strConn); sqlCm = new SqlCommand(strSql, sqlCn); sqlCn.Open(); SerializedState = Convert.ToString(sqlCm.ExecuteScalar()); IStateFormatter formatter = this.StateFormatter; if ((null == SerializedState) || (String.Empty == SerializedState)) { throw (new ApplicationException("No ViewState records were returned.")); } // Deserilize returns the Pair object that is serialized in // the Save method. PageState = (Pair)formatter.Deserialize(SerializedState); if (sqlCn.State != ConnectionState.Closed) { sqlCn.Close(); } sqlCn.Dispose(); sqlCm.Dispose(); } finally { sqlCn = null; sqlCm = null; } return PageState; } private string SqlEscape(string Val) { string ReturnVal = String.Empty; if (null != Val) { ReturnVal = Val.Replace("'", "''"); } return (ReturnVal); } private void GetDBConnectionString(ref string ConnectionStringValue, ref string ProviderNameValue) { if (System.Configuration.ConfigurationManager.ConnectionStrings.Count > 0) { ConnectionStringValue = System.Configuration.ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString; ProviderNameValue = System.Configuration.ConfigurationManager.ConnectionStrings["ApplicationServices"].ProviderName; } else { throw new ConfigurationErrorsException(_exNoConnectionStringFound); } } private string GetMinutesInPastToDelete() { string strReturn = "-60"; if (null != System.Configuration.ConfigurationManager.AppSettings["MinutesInPastToDeletePageState"]) { strReturn = System.Configuration.ConfigurationManager.AppSettings["MinutesInPastToDeletePageState"].ToString(); } return (strReturn); }}#endregion AppleiPhone.cs file: using System;using System.Collections.Generic;using System.Linq;using System.Web; /// <summary>/// Summary description for AppleIPhone/// </summary>public class AppleIPhone{ public AppleIPhone() { // // TODO: Add constructor logic here // } static public bool IsIPhoneOS() { return (IsIPad() || IsIPhone() || IsIPodTouch()); } static public bool IsIPhone() { return IsTest("iPhone"); } static public bool IsIPodTouch() { return IsTest("iPod"); } static public bool IsIPad() { return IsTest("iPad"); } static private bool IsTest(string Agent) { bool bl = false; string ua = HttpContext.Current.Request.UserAgent.ToLower(); try { bl = ua.Contains(Agent.ToLower()); } catch { } return (bl); }} Master page .cs: using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls; public partial class MasterPages_iPhoneMaster : System.Web.UI.MasterPage{ protected void Page_Load(object sender, EventArgs e) { HtmlHead head = Page.Header; HtmlMeta meta = new HtmlMeta(); if (AppleIPhone.IsIPad() == true) { meta.Content = "width=400,user-scalable=no"; head.Controls.Add(meta); } else { meta.Content = "width=device-width, user-scalable=no"; meta.Attributes.Add("name", "viewport"); } meta.Attributes.Add("name", "viewport"); head.Controls.Add(meta); HtmlLink cssLink = new HtmlLink(); HtmlGenericControl script = new HtmlGenericControl("script"); script.Attributes.Add("type", "text/javascript"); script.Attributes.Add("src", ResolveUrl("~/Scripts/iWebKit/javascript/functions.js")); head.Controls.Add(script); cssLink.Attributes.Add("rel", "stylesheet"); cssLink.Attributes.Add("href", ResolveUrl("~/Scripts/iWebKit/css/style.css") ); cssLink.Attributes.Add("type", "text/css"); head.Controls.Add(cssLink); HtmlGenericControl jsLink = new HtmlGenericControl("script"); //jsLink.Attributes.Add("type", "text/javascript"); //jsLink.Attributes.Add("src", ResolveUrl("~/Scripts/jquery-1.4.1.min.js") ); //head.Controls.Add(jsLink); HtmlLink appleIcon = new HtmlLink(); appleIcon.Attributes.Add("rel", "apple-touch-icon"); appleIcon.Attributes.Add("href", ResolveUrl("~/apple-touch-icon.png")); HtmlMeta appleMobileWebAppStatusBarStyle = new HtmlMeta(); appleMobileWebAppStatusBarStyle.Attributes.Add("name", "apple-mobile-web-app-status-bar-style"); appleMobileWebAppStatusBarStyle.Attributes.Add("content", "black"); head.Controls.Add(appleMobileWebAppStatusBarStyle); } internal string FindPath(string Location) { string Url = Server.MapPath(Location); return (Url); }}

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Silverlight Recruiting Application Part 6 - Adding an Interview Scheduling Module/View

Between the last post and this one I went ahead and carried the ideas for the Jobs module and view into the Applicants module and view- they're both doing more or less the same thing, except with different objects being at their core. Made for an easy cut-and-paste operation with a few items being switched from one to another. Now that we have the ability to add postings and applicants, wouldn't it be nice if we could schedule an interview? Of course it would! Scheduling Module I think you get the drift from previous posts that these project structures start looking somewhat similar. The interview scheduling module is no different than the rest- it gets a SchedulingModule.cs file at the root that inherits from IModule, and there is a single SchedulerView.xsml and SchedulerViewModel.cs setup for our V+VM. We have one unique concern as we enter into this- RadScheduler deals with AppointmentsSource, not ItemsSource, so there are some special considerations to take into account when planning this module. First, I need something which inherits from AppointmentBase. This is the core of the RadScheduler appointment, and if you are planning to do any form of custom appointment, you'll want it to inherit from this. Then you can add-on functionality as needed. Here is my addition to the mix, the InterviewAppointment: 01.public class InterviewAppointment : AppointmentBase 02.{ 03. private int _applicantID; 04. public int ApplicantID 05. { 06. get { return this._applicantID; } 07. set 08. { 09. if (_applicantID != value) 10. { 11. _applicantID = value; 12. OnPropertyChanged("ApplicantID"); 13. } 14. } 15. } 16. 17. private int _postingID; 18. public int PostingID 19. { 20. get { return _postingID; } 21. set 22. { 23. if (_postingID != value) 24. { 25. _postingID = value; 26. OnPropertyChanged("PostingID"); 27. } 28. } 29. } 30. 31. private string _body; 32. public string Body 33. { 34. get { return _body; } 35. set 36. { 37. if (_body != value) 38. { 39. _body = value; 40. OnPropertyChanged("Body"); 41. } 42. } 43. } 44. 45. private int _interviewID; 46. public int InterviewID 47. { 48. get { return _interviewID; } 49. set 50. { 51. if (_interviewID != value) 52. { 53. _interviewID = value; 54. OnPropertyChanged("InterviewID"); 55. } 56. } 57. } 58. 59. public override IAppointment Copy() 60. { 61. IAppointment appointment = new InterviewAppointment(); 62. appointment.CopyFrom(this); 63. return appointment; 64. } 65. 66. public override void CopyFrom(IAppointment other) 67. { 68. base.CopyFrom(other); 69. var appointment = other as InterviewAppointment; 70. if (appointment != null) 71. { 72. ApplicantID = appointment.ApplicantID; 73. PostingID = appointment.PostingID; 74. Body = appointment.Body; 75. InterviewID = appointment.InterviewID; 76. } 77. } 78.} Nothing too exciting going on here, we just make sure that our custom fields are persisted (specifically set in CopyFrom at the bottom) and notifications are fired- otherwise this ends up exactly like the standard appointment as far as interactions, etc. But if we've got custom appointment items... that also means we need to customize what our appointment dialog window will look like. Customizing the Edit Appointment Dialog This initially sounds a lot more intimidating than it really is. The first step here depends on what you're dealing with for theming, but for ease of everything I went ahead and extracted my templates in Blend for RadScheduler so I could modify it as I pleased. For the faint of heart, the RadScheduler template is a few thousand lines of goodness since there are some very complex things going on in that control. I've gone ahead and trimmed down the template parts I don't need as much as possible, so what is left is all that is relevant to the Edit Appointment Dialog. Here's the resulting Xaml, with line numbers, so I can explain further: 001.<UserControl.Resources> 002.  003. <helpers:DataContextProxy x:Key="DataContextProxy" /> 004. 005. <telerik:Windows7Theme x:Key="Theme" /> 006. <SolidColorBrush x:Key="DialogWindowBackground" 007. Color="White" /> 008. <SolidColorBrush x:Key="CategorySelectorBorderBrush" 009. Color="#FFB1B1B1" /> 010. <LinearGradientBrush x:Key="RadToolBar_InnerBackground" 011. EndPoint="0.5,1" 012. StartPoint="0.5,0"> 013. <GradientStop Color="#FFFDFEFF" 014. Offset="0" /> 015. <GradientStop Color="#FFDDE9F7" 016. Offset="1" /> 017. <GradientStop Color="#FFE6F0FA" 018. Offset="0.5" /> 019. <GradientStop Color="#FFDCE6F4" 020. Offset="0.5" /> 021. </LinearGradientBrush> 022. <Style x:Key="FormElementTextBlockStyle" 023. TargetType="TextBlock"> 024. <Setter Property="HorizontalAlignment" 025. Value="Right" /> 026. <Setter Property="VerticalAlignment" 027. Value="Top" /> 028. <Setter Property="Margin" 029. Value="15, 15, 0, 2" /> 030. </Style> 031. <Style x:Key="FormElementStyle" 032. TargetType="FrameworkElement"> 033. <Setter Property="Margin" 034. Value="10, 10, 0, 2" /> 035. </Style> 036. <SolidColorBrush x:Key="GenericShallowBorderBrush" 037. Color="#FF979994" /> 038. <telerik:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" /> 039. <telerikScheduler:ImportanceToBooleanConverter x:Key="ImportanceToBooleanConverter" /> 040. <telerikScheduler:NullToVisibilityConverter x:Key="NullToVisibilityConverter" /> 041. <telerikScheduler:InvertedNullToVisibilityConverter x:Key="InvertedNullToVisibilityConverter" /> 042. <scheduler:ResourcesSeparatorConverter x:Key="ResourcesSeparatorConverter" /> 043. <DataTemplate x:Key="IconDataEditTemplate"> 044. <Image Source="/Telerik.Windows.Controls.Scheduler;component/Themes/Office/Images/cal.png" 045. Margin="3,3,0,0" 046. Width="16" 047. Height="16" /> 048. </DataTemplate> 049. <DataTemplate x:Key="SingleSelectionTemplate"> 050. <Grid VerticalAlignment="Stretch" 051. HorizontalAlignment="Stretch"> 052. <Grid.RowDefinitions> 053. <RowDefinition Height="Auto" /> 054. </Grid.RowDefinitions> 055. <Grid.ColumnDefinitions> 056. <ColumnDefinition Width="Auto" 057. MinWidth="84" /> 058. <ColumnDefinition Width="Auto" 059. MinWidth="200" /> 060. </Grid.ColumnDefinitions> 061. <TextBlock x:Name="SelectionNameLabel" 062. Margin="0,13,4,2" 063. Text="{Binding ResourceType.DisplayName}" 064. Style="{StaticResource FormElementTextBlockStyle}" 065. Grid.Column="0" /> 066. <telerikInput:RadComboBox ItemsSource="{Binding ResourceItems}" 067. Width="185" 068. Margin="5,10,20,2" 069. HorizontalAlignment="Left" 070. Grid.Column="1" 071. ClearSelectionButtonVisibility="Visible" 072. ClearSelectionButtonContent="Clear All" 073. DisplayMemberPath="Resource.DisplayName" 074. telerik:StyleManager.Theme="{StaticResource Theme}" 075. SelectedItem="{Binding SelectedItem, Mode=TwoWay}" /> 076. </Grid> 077. </DataTemplate> 078. <DataTemplate x:Key="MultipleSelectionTemplate"> 079. <Grid VerticalAlignment="Stretch" 080. HorizontalAlignment="Stretch"> 081. <Grid.RowDefinitions> 082. <RowDefinition Height="Auto" /> 083. </Grid.RowDefinitions> 084. <Grid.ColumnDefinitions> 085. <ColumnDefinition Width="Auto" 086. MinWidth="84" /> 087. <ColumnDefinition Width="Auto" 088. MinWidth="200" /> 089. </Grid.ColumnDefinitions> 090. <TextBlock x:Name="SelectionNameLabel" 091. Grid.Column="0" 092. Text="{Binding ResourceType.DisplayName}" 093. Margin="0,13,4,2" 094. Style="{StaticResource FormElementTextBlockStyle}" /> 095. <telerikInput:RadComboBox Grid.Column="1" 096. Width="185" 097. HorizontalAlignment="Left" 098. Margin="5,10,20,2" 099. ItemsSource="{Binding ResourceItems}" 100. SelectedIndex="{Binding SelectedIndex, Mode=TwoWay}" 101. ClearSelectionButtonVisibility="Visible" 102. ClearSelectionButtonContent="Clear All" 103. telerik:StyleManager.Theme="{StaticResource Theme}"> 104. <telerikInput:RadComboBox.ItemTemplate> 105. <DataTemplate> 106. <Grid HorizontalAlignment="Stretch" 107. VerticalAlignment="Stretch"> 108. <CheckBox VerticalAlignment="Center" 109. HorizontalContentAlignment="Stretch" 110. VerticalContentAlignment="Center" 111. IsChecked="{Binding IsChecked, Mode=TwoWay}" 112. Content="{Binding Resource.DisplayName}"> 113. <CheckBox.ContentTemplate> 114. <DataTemplate> 115. <TextBlock HorizontalAlignment="Stretch" 116. VerticalAlignment="Stretch" 117. Text="{Binding Content, RelativeSource={RelativeSource TemplatedParent}}" /> 118. </DataTemplate> 119. </CheckBox.ContentTemplate> 120. </CheckBox> 121. </Grid> 122. </DataTemplate> 123. </telerikInput:RadComboBox.ItemTemplate> 124. </telerikInput:RadComboBox> 125. </Grid> 126. </DataTemplate> 127. <scheduler:ResourceTypeTemplateSelector x:Key="ItemTemplateSelector" 128. MultipleSelectionTemplate="{StaticResource MultipleSelectionTemplate}" 129. SingleSelectionTemplate="{StaticResource SingleSelectionTemplate}" /> 130.  131. 132. <ControlTemplate x:Key="EditAppointmentTemplate" 133. TargetType="telerikScheduler:AppointmentDialogWindow"> 134. <StackPanel Background="{TemplateBinding Background}" 135. UseLayoutRounding="True"> 136. <StackPanel Grid.Row="0" 137. Orientation="Horizontal" 138. Background="{StaticResource RadToolBar_InnerBackground}" 139. Grid.ColumnSpan="2" 140. Height="0"> 141.  142. <Border Margin="1,1,0,0" 143. Background="#50000000" 144. HorizontalAlignment="Left" 145. VerticalAlignment="Center" 146. Width="2" 147. Height="16"> 148. <Border Margin="0,0,1,1" 149. Background="#80FFFFFF" 150. HorizontalAlignment="Left" 151. Width="1" /> 152. </Border> 153. <Border Margin="1,1,0,0" 154. Background="#50000000" 155. HorizontalAlignment="Left" 156. VerticalAlignment="Center" 157. Width="2" 158. Height="16"> 159. <Border Margin="0,0,1,1" 160. Background="#80FFFFFF" 161. HorizontalAlignment="Left" 162. Width="1" /> 163. </Border> 164. <TextBlock telerik:LocalizationManager.ResourceKey="ShowAs" 165. VerticalAlignment="Center" 166. Margin="5,0,0,0" /> 167. <telerikInput:RadComboBox ItemsSource="{TemplateBinding TimeMarkers}" 168. Width="100" 169. Height="20" 170. VerticalAlignment="Center" 171. Margin="5,0,0,0" 172. ClearSelectionButtonVisibility="Visible" 173. ClearSelectionButtonContent="Clear" 174. SelectedItem="{Binding TimeMarker,RelativeSource={RelativeSource TemplatedParent},Mode=TwoWay}" 175. telerik:StyleManager.Theme="{StaticResource Theme}"> 176. <telerikInput:RadComboBox.ItemTemplate> 177. <DataTemplate> 178. <StackPanel Orientation="Horizontal"> 179. <Rectangle Fill="{Binding TimeMarkerBrush}" 180. Margin="2" 181. Width="12" 182. Height="12" /> 183. <TextBlock Text="{Binding TimeMarkerName}" 184. Margin="2" /> 185. </StackPanel> 186. </DataTemplate> 187. </telerikInput:RadComboBox.ItemTemplate> 188. </telerikInput:RadComboBox> 189. <telerik:RadToggleButton x:Name="High" 190. BorderThickness="0" 191. Background="{StaticResource RadToolBar_InnerBackground}" 192. DataContext="{TemplateBinding EditedAppointment}" 193. telerik:StyleManager.Theme="{StaticResource Theme}" 194. IsChecked="{Binding Importance,Mode=TwoWay, Converter={StaticResource ImportanceToBooleanConverter},ConverterParameter=High}" 195. Margin="2,2,0,2" 196. Width="23" 197. Height="23" 198. HorizontalContentAlignment="Center" 199. ToolTipService.ToolTip="High importance" 200. CommandParameter="High" 201. Command="telerikScheduler:RadSchedulerCommands.SetAppointmentImportance"> 202. <StackPanel HorizontalAlignment="Center"> 203. <Path Stretch="Fill" 204. Height="10" 205. HorizontalAlignment="Center" 206. VerticalAlignment="Top" 207. Width="5.451" 208. Data="M200.39647,58.840393 C200.39337,58.336426 201.14566,57.683922 202.56244,57.684292 C204.06589,57.684685 204.73764,58.357765 204.72783,58.992363 C205.04649,61.795574 203.04713,64.181099 202.47388,66.133446 C201.93753,64.154961 199.9471,61.560352 200.39647,58.840393 z"> 209. <Path.Fill> 210. <LinearGradientBrush EndPoint="1.059,0.375" 211. StartPoint="-0.457,0.519"> 212. <GradientStop Color="#FFFF0606" 213. Offset="0.609" /> 214. <GradientStop Color="#FFBF0303" 215. Offset="0.927" /> 216. </LinearGradientBrush> 217. </Path.Fill> 218. </Path> 219. <Ellipse Height="3" 220. HorizontalAlignment="Center" 221. Margin="0,-1,0,0" 222. VerticalAlignment="Top" 223. Width="3"> 224. <Ellipse.Fill> 225. <RadialGradientBrush> 226. <GradientStop Color="#FFFF0606" 227. Offset="0" /> 228. <GradientStop Color="#FFBF0303" 229. Offset="1" /> 230. </RadialGradientBrush> 231. </Ellipse.Fill> 232. </Ellipse> 233. </StackPanel> 234. </telerik:RadToggleButton> 235. <telerik:RadToggleButton x:Name="Low" 236. HorizontalContentAlignment="Center" 237. BorderThickness="0" 238. Background="{StaticResource RadToolBar_InnerBackground}" 239. DataContext="{TemplateBinding EditedAppointment}" 240. IsChecked="{Binding Importance,Mode=TwoWay, Converter={StaticResource ImportanceToBooleanConverter},ConverterParameter=Low}" 241. Margin="0,2,0,2" 242. Width="23" 243. Height="23" 244. ToolTipService.ToolTip="Low importance" 245. CommandParameter="Low" 246. telerik:StyleManager.Theme="{StaticResource Theme}" 247. Command="telerikScheduler:RadSchedulerCommands.SetAppointmentImportance"> 248. <Path Stretch="Fill" 249. Height="12" 250. HorizontalAlignment="Center" 251. VerticalAlignment="Top" 252. Width="9" 253. Data="M222.40353,60.139881 L226.65768,60.139843 L226.63687,67.240196 L229.15347,67.240196 L224.37816,71.394943 L219.65274,67.240196 L222.37572,67.219345 z" 254. Stroke="#FF0365A7"> 255. <Path.Fill> 256. <LinearGradientBrush EndPoint="1.059,0.375" 257. StartPoint="-0.457,0.519"> 258. <GradientStop Color="#FFBBE4FF" /> 259. <GradientStop Color="#FF024572" 260. Offset="0.836" /> 261. <GradientStop Color="#FF43ADF4" 262. Offset="0.466" /> 263. </LinearGradientBrush> 264. </Path.Fill> 265. </Path> 266. </telerik:RadToggleButton> 267. </StackPanel > 268. <Border DataContext="{TemplateBinding EditedAppointment}" 269. Background="{Binding Category.CategoryBrush}" 270. Visibility="{Binding Category,Converter={StaticResource NullToVisibilityConverter}}" 271. CornerRadius="3" 272. Height="20" 273. Margin="5,10,5,0"> 274. <TextBlock Text="{Binding Category.DisplayName}" 275. VerticalAlignment="Center" 276. Margin="5,0,0,0" /> 277. </Border> 278. <Grid VerticalAlignment="Stretch" 279. HorizontalAlignment="Stretch" 280. DataContext="{TemplateBinding EditedAppointment}" 281. Background="{TemplateBinding Background}"> 282. <Grid.RowDefinitions> 283. <RowDefinition Height="Auto" /> 284. <RowDefinition Height="Auto" /> 285. <RowDefinition Height="Auto" /> 286. <RowDefinition Height="Auto" /> 287. <RowDefinition Height="Auto" /> 288. <RowDefinition Height="Auto" /> 289. <RowDefinition Height="Auto" /> 290. <RowDefinition Height="Auto" /> 291. <RowDefinition Height="Auto" /> 292. <RowDefinition Height="Auto" /> 293. </Grid.RowDefinitions> 294. <Grid.ColumnDefinitions> 295. <ColumnDefinition Width="Auto" 296. MinWidth="100" /> 297. <ColumnDefinition Width="Auto" 298. MinWidth="200" /> 299. </Grid.ColumnDefinitions> 300.  301. <TextBlock x:Name="SubjectLabel" 302. Grid.Row="0" 303. Grid.Column="0" 304. Margin="0,15,0,2" 305. telerik:LocalizationManager.ResourceKey="Subject" 306. Style="{StaticResource FormElementTextBlockStyle}" /> 307. <TextBox x:Name="Subject" 308. Grid.Row="0" 309. Grid.Column="1" 310. MinHeight="22" 311. Padding="4 2" 312. Width="340" 313. HorizontalAlignment="Left" 314. Text="{Binding Subject, Mode=TwoWay}" 315. MaxLength="255" 316. telerik:StyleManager.Theme="{StaticResource Theme}" 317. Margin="10,12,20,2" /> 318.  319. <TextBlock x:Name="DescriptionLabel" 320. Grid.Row="1" 321. Grid.Column="0" 322. Margin="0,13,0,2" 323. telerik:LocalizationManager.ResourceKey="Body" 324. Style="{StaticResource FormElementTextBlockStyle}" /> 325. <TextBox x:Name="Body" 326. VerticalAlignment="top" 327. Grid.Row="1" 328. Grid.Column="1" 329. Height="Auto" 330. MaxHeight="82" 331. Width="340" 332. HorizontalAlignment="Left" 333. MinHeight="22" 334. Padding="4 2" 335. TextWrapping="Wrap" 336. telerik:StyleManager.Theme="{StaticResource Theme}" 337. Text="{Binding Body, Mode=TwoWay}" 338. AcceptsReturn="true" 339. Margin="10,10,20,2" 340. HorizontalScrollBarVisibility="Auto" 341. VerticalScrollBarVisibility="Auto" /> 342.  343. <TextBlock x:Name="StartDateLabel" 344. Grid.Row="2" 345. Grid.Column="0" 346. Margin="0,13,0,2" 347. telerik:LocalizationManager.ResourceKey="StartTime" 348. Style="{StaticResource FormElementTextBlockStyle}" /> 349. <telerikScheduler:DateTimePicker x:Name="StartDateTime" 350. Height="22" 351. Grid.Row="2" 352. Grid.Column="1" 353. HorizontalAlignment="Left" 354. Margin="10,10,20,2" 355. Style="{StaticResource FormElementStyle}" 356. SelectedDateTime="{Binding Start, Mode=TwoWay}" 357. telerikScheduler:StartEndDatePicker.EndPicker="{Binding ElementName=EndDateTime}" 358. IsTabStop="False" 359. IsEnabled="False" /> 360. <TextBlock x:Name="EndDateLabel" 361. Grid.Row="3" 362. Grid.Column="0" 363. Margin="0,13,0,2" 364. telerik:LocalizationManager.ResourceKey="EndTime" 365. Style="{StaticResource FormElementTextBlockStyle}" /> 366. <telerikScheduler:DateTimePicker x:Name="EndDateTime" 367. Height="22" 368. Grid.Row="3" 369. Grid.Column="1" 370. HorizontalAlignment="Left" 371. Margin="10,10,20,2" 372. Style="{StaticResource FormElementStyle}" 373. IsTabStop="False" 374. IsEnabled="False" 375. SelectedDateTime="{Binding End, Mode=TwoWay}" /> 376.  377. <CheckBox x:Name="AllDayEventCheckbox" 378. IsChecked="{Binding IsAllDayEvent, Mode=TwoWay}" 379. Grid.Row="4" 380. Grid.Column="1" 381. Margin="10,10,20,2" 382. HorizontalAlignment="Left" 383. telerik:StyleManager.Theme="{StaticResource Theme}" 384. telerik:LocalizationManager.ResourceKey="AllDayEvent"> 385. <telerik:CommandManager.InputBindings> 386. <telerik:InputBindingCollection> 387. <telerik:MouseBinding Command="telerikScheduler:RadSchedulerCommands.ChangeTimePickersVisibility" 388. Gesture="LeftClick" /> 389. </telerik:InputBindingCollection> 390. </telerik:CommandManager.InputBindings> 391. </CheckBox> 392. <Grid Grid.Row="5" 393. Grid.ColumnSpan="2"> 394. <Grid.ColumnDefinitions> 395. <ColumnDefinition Width="Auto" 396. MinWidth="100" /> 397. <ColumnDefinition Width="Auto" 398. MinWidth="200" /> 399. </Grid.ColumnDefinitions> 400. <Grid.RowDefinitions> 401. <RowDefinition Height="Auto" /> 402. <RowDefinition Height="Auto" /> 403. </Grid.RowDefinitions> 404. <TextBlock Text="Applicant" 405. Margin="0,13,0,2" 406. Style="{StaticResource FormElementTextBlockStyle}" /> 407. <telerikInput:RadComboBox IsEditable="False" 408. Grid.Column="1" 409. Height="24" 410. VerticalAlignment="Center" 411. ItemsSource="{Binding Source={StaticResource DataContextProxy}, Path=DataSource.ApplicantList}" 412. SelectedValue="{Binding ApplicantID, Mode=TwoWay}" 413. SelectedValuePath="ApplicantID" 414. DisplayMemberPath="FirstName" /> 415. 416. <TextBlock Text="Job" 417. Margin="0,13,0,2" 418. Grid.Row="1" 419. Style="{StaticResource FormElementTextBlockStyle}" /> 420. <telerikInput:RadComboBox IsEditable="False" 421. Grid.Column="1" 422. Grid.Row="1" 423. Height="24" 424. VerticalAlignment="Center" 425. ItemsSource="{Binding Source={StaticResource DataContextProxy}, Path=DataSource.JobsList}" 426. SelectedValue="{Binding PostingID, Mode=TwoWay}" 427. SelectedValuePath="PostingID" 428. DisplayMemberPath="JobTitle"/> 429. </Grid> 430.  431. <Grid x:Name="ResourcesLayout" 432. Grid.Row="7" 433. Grid.Column="0" 434. Grid.ColumnSpan="2" 435. MaxHeight="130" 436. Margin="20,5,20,0"> 437. <Border Margin="0" 438. BorderThickness="1" 439. BorderBrush="{StaticResource GenericShallowBorderBrush}" 440. Visibility="{Binding ElementName=ResourcesScrollViewer, Path=ComputedVerticalScrollBarVisibility}"></Border> 441. <ScrollViewer x:Name="ResourcesScrollViewer" 442. IsTabStop="false" 443. Grid.Row="6" 444. Grid.Column="0" 445. Grid.ColumnSpan="2" 446. Margin="1" 447. telerik:StyleManager.Theme="{StaticResource Theme}" 448. VerticalScrollBarVisibility="Auto"> 449. <scheduler:ResourcesItemsControl x:Name="PART_Resources" 450. HorizontalAlignment="Left" 451. Padding="0,2,0,5" 452. IsTabStop="false" 453. ItemsSource="{TemplateBinding ResourceTypeModels}" 454. ItemTemplateSelector="{StaticResource ItemTemplateSelector}" /> 455. </ScrollViewer> 456. </Grid> 457. <StackPanel x:Name="FooterControls" 458. Margin="5 10 10 10" 459. Grid.Row="8" 460. Grid.Column="1" 461. HorizontalAlignment="Left" 462. Orientation="Horizontal"> 463. <telerik:RadButton x:Name="OKButton" 464. Margin="5" 465. Padding="10 0" 466. MinWidth="80" 467. Command="telerikScheduler:RadSchedulerCommands.SaveAppointment" 468. telerik:StyleManager.Theme="{StaticResource Theme}" 469. telerikNavigation:RadWindow.ResponseButton="Accept" 470. telerik:LocalizationManager.ResourceKey="SaveAndCloseCommandText"> 471. </telerik:RadButton> 472. <telerik:RadButton x:Name="CancelButton" 473. Margin="5" 474. Padding="10 0" 475. MinWidth="80" 476. telerik:LocalizationManager.ResourceKey="Cancel" 477. telerik:StyleManager.Theme="{StaticResource Theme}" 478. telerikNavigation:RadWindow.ResponseButton="Cancel" 479. Command="telerik:WindowCommands.Close"> 480. </telerik:RadButton> 481. </StackPanel> 482. </Grid> 483. <vsm:VisualStateManager.VisualStateGroups> 484. <vsm:VisualStateGroup x:Name="RecurrenceRuleState"> 485. <vsm:VisualState x:Name="RecurrenceRuleIsNull"> 486. <Storyboard> 487. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="StartDateTime" 488. Storyboard.TargetProperty="IsEnabled" 489. Duration="0"> 490. <DiscreteObjectKeyFrame KeyTime="0" 491. Value="True" /> 492. </ObjectAnimationUsingKeyFrames> 493. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EndDateTime" 494. Storyboard.TargetProperty="IsEnabled" 495. Duration="0"> 496. <DiscreteObjectKeyFrame KeyTime="0" 497. Value="True" /> 498. </ObjectAnimationUsingKeyFrames> 499. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="AllDayEventCheckbox" 500. Storyboard.TargetProperty="IsEnabled" 501. Duration="0"> 502. <DiscreteObjectKeyFrame KeyTime="0" 503. Value="True" /> 504. </ObjectAnimationUsingKeyFrames> 505. </Storyboard> 506. </vsm:VisualState> 507. <vsm:VisualState x:Name="RecurrenceRuleIsNotNull"> 508. <Storyboard> 509. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="StartDateTime" 510. Storyboard.TargetProperty="IsEnabled" 511. Duration="0"> 512. <DiscreteObjectKeyFrame KeyTime="0" 513. Value="False" /> 514. </ObjectAnimationUsingKeyFrames> 515. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EndDateTime" 516. Storyboard.TargetProperty="IsEnabled" 517. Duration="0"> 518. <DiscreteObjectKeyFrame KeyTime="0" 519. Value="False" /> 520. </ObjectAnimationUsingKeyFrames> 521. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="AllDayEventCheckbox" 522. Storyboard.TargetProperty="IsEnabled" 523. Duration="0"> 524. <DiscreteObjectKeyFrame KeyTime="0" 525. Value="False" /> 526. </ObjectAnimationUsingKeyFrames> 527. </Storyboard> 528. </vsm:VisualState> 529. </vsm:VisualStateGroup> 530. </vsm:VisualStateManager.VisualStateGroups> 531. </StackPanel> 532. </ControlTemplate> 533. <DataTemplate x:Key="AppointmentDialogWindowHeaderDataTemplate"> 534. <StackPanel Orientation="Horizontal" 535. MaxWidth="400"> 536. <TextBlock telerik:LocalizationManager.ResourceKey="Event" 537. Visibility="{Binding Appointment.IsAllDayEvent, Converter={StaticResource BooleanToVisibilityConverter}}" /> 538. <TextBlock telerik:LocalizationManager.ResourceKey="Appointment" 539. Visibility="{Binding Appointment.IsAllDayEvent, Converter={StaticResource InvertedBooleanToVisibilityConverter}}" /> 540. <TextBlock Text=" - " /> 541. <TextBlock x:Name="SubjectTextBlock" 542. Visibility="{Binding Appointment.Subject, Converter={StaticResource NullToVisibilityConverter}}" 543. Text="{Binding Appointment.Subject}" /> 544. <TextBlock telerik:LocalizationManager.ResourceKey="Untitled" 545. Visibility="{Binding Appointment.Subject, Converter={StaticResource InvertedNullToVisibilityConverter}}" /> 546. </StackPanel> 547. </DataTemplate> 548. <Style x:Key="EditAppointmentStyle" 549. TargetType="telerikScheduler:AppointmentDialogWindow"> 550. <Setter Property="IconTemplate" 551. Value="{StaticResource IconDataEditTemplate}" /> 552. <Setter Property="HeaderTemplate" 553. Value="{StaticResource AppointmentDialogWindowHeaderDataTemplate}" /> 554. <Setter Property="Background" 555. Value="{StaticResource DialogWindowBackground}" /> 556. <Setter Property="Template" 557. Value="{StaticResource EditAppointmentTemplate}" /> 558. </Style> 559.</UserControl.Resources> The first line there is the DataContextProxy I mentioned previously- we use that again to work a bit of magic in this template. Where we start getting into the dialog in question is line 132, but line 407 is where things start getting interesting. The ItemsSource is pointing at a list that exists in my ViewModel (or code-behind, if it is used as a DataContext), the SelectedValue is the item I am actually binding from the applicant (note the TwoWay binding), and SelectedValuePath and DisplayMemberPath ensure the proper applicant is being displayed from the collection. You will also see similar starting on line 420 where I do the same for the Jobs we'll be displaying. Just to wrap-up the Xaml, here's the RadScheduler declaraction that ties this all together and will be the main focus of our view: 01.<telerikScheduler:RadScheduler x:Name="xJobsScheduler" 02. Grid.Row="1" 03. Grid.Column="1" 04. Width="800" 05. MinWidth="600" 06. Height="500" 07. MinHeight="300" 08. AppointmentsSource="{Binding Interviews}" 09. EditAppointmentStyle="{StaticResource EditAppointmentStyle}" 10. command:AppointmentAddedEventClass.Command="{Binding AddAppointmentCommand}" 11. command:ApptCreatedEventClass.Command="{Binding ApptCreatingCommand}" 12. command:ApptEditedEventClass.Command="{Binding ApptEditedCommand}" 13. command:ApptDeletedEventClass.Command="{Binding ApptDeletedCommand}"> 14.</telerikScheduler:RadScheduler> Now, we get to the ViewModel and what it takes to get that rigged up. And for those of you who remember the jobs post, those command:s in the Xaml are pointing to attached behavior commands that reproduce the respective events. This becomes very handy when we're setting up the code-behind version. ;) ViewModel I've been liking this approach so far, so I'm going to put the entire ViewModel here and then go into the lines of interest. Of course, feel free to ask me questions about anything that isn't clear (by line number, ideally) so I can help out if I have missed anything important: 001.public class SchedulerViewModel : ViewModelBase 002.{ 003. private readonly IEventAggregator eventAggregator; 004. private readonly IRegionManager regionManager; 005. 006. public RecruitingContext context; 007. 008. private ObservableItemCollection<InterviewAppointment> _interviews = new ObservableItemCollection<InterviewAppointment>(); 009. public ObservableItemCollection<InterviewAppointment> Interviews 010. { 011. get { return _interviews; } 012. set 013. { 014. if (_interviews != value) 015. { 016. _interviews = value; 017. NotifyChanged("Interviews"); 018. } 019. } 020. } 021. 022. private QueryableCollectionView _jobsList; 023. public QueryableCollectionView JobsList 024. { 025. get { return this._jobsList; } 026. set 027. { 028. if (this._jobsList != value) 029. { 030. this._jobsList = value; 031. this.NotifyChanged("JobsList"); 032. } 033. } 034. } 035. 036. private QueryableCollectionView _applicantList; 037. public QueryableCollectionView ApplicantList 038. { 039. get { return _applicantList; } 040. set 041. { 042. if (_applicantList != value) 043. { 044. _applicantList = value; 045. NotifyChanged("ApplicantList"); 046. } 047. } 048. } 049. 050. public DelegateCommand<object> AddAppointmentCommand { get; set; } 051. public DelegateCommand<object> ApptCreatingCommand { get; set; } 052. public DelegateCommand<object> ApptEditedCommand { get; set; } 053. public DelegateCommand<object> ApptDeletedCommand { get; set; } 054. 055. public SchedulerViewModel(IEventAggregator eventAgg, IRegionManager regionmanager) 056. { 057. // set Unity items 058. this.eventAggregator = eventAgg; 059. this.regionManager = regionmanager; 060. 061. // load our context 062. context = new RecruitingContext(); 063. LoadOperation<Interview> loadOp = context.Load(context.GetInterviewsQuery()); 064. loadOp.Completed += new EventHandler(loadOp_Completed); 065. 066. this._jobsList = new QueryableCollectionView(context.JobPostings); 067. context.Load(context.GetJobPostingsQuery()); 068. 069. this._applicantList = new QueryableCollectionView(context.Applicants); 070. context.Load(context.GetApplicantsQuery()); 071. 072. AddAppointmentCommand = new DelegateCommand<object>(this.AddAppt); 073. ApptCreatingCommand = new DelegateCommand<object>(this.ApptCreating); 074. ApptEditedCommand = new DelegateCommand<object>(this.ApptEdited); 075. ApptDeletedCommand = new DelegateCommand<object>(this.ApptDeleted); 076. 077. } 078. 079. void loadOp_Completed(object sender, EventArgs e) 080. { 081. LoadOperation loadop = sender as LoadOperation; 082. 083. foreach (var ent in loadop.Entities) 084. { 085. _interviews.Add(EntityToAppointment(ent as Interview)); 086. } 087. } 088. 089. #region Appointment Adding 090. 091. public void AddAppt(object obj) 092. { 093. // now we have a new InterviewAppointment to add to our QCV :) 094. InterviewAppointment newInterview = obj as InterviewAppointment; 095. 096. this.context.Interviews.Add(AppointmentToEntity(newInterview)); 097. this.context.SubmitChanges((s) => 098. { 099. ActionHistory myAction = new ActionHistory(); 100. myAction.InterviewID = newInterview.InterviewID; 101. myAction.PostingID = newInterview.PostingID; 102. myAction.ApplicantID = newInterview.ApplicantID; 103. myAction.Description = String.Format("Interview with {0} has been created by {1}", newInterview.ApplicantID.ToString(), "default user"); 104. myAction.TimeStamp = DateTime.Now; 105. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); 106. } 107. , null); 108. } 109. 110. public void ApptCreating(object obj) 111. { 112. // handled in the behavior, just a placeholder to ensure it runs :) 113. } 114. 115. #endregion 116. 117. #region Appointment Editing 118. 119. public void ApptEdited(object obj) 120. { 121. Interview editedInterview = (from x in context.Interviews 122. where x.InterviewID == (obj as InterviewAppointment).InterviewID 123. select x).SingleOrDefault(); 124. 125. CopyAppointmentEdit(editedInterview, obj as InterviewAppointment); 126. 127. context.SubmitChanges((s) => { 128. ActionHistory myAction = new ActionHistory(); 129. myAction.InterviewID = editedInterview.InterviewID; 130. myAction.PostingID = editedInterview.PostingID; 131. myAction.ApplicantID = editedInterview.ApplicantID; 132. myAction.Description = String.Format("Interview with {0} has been modified by {1}", editedInterview.ApplicantID.ToString(), "default user"); 133. myAction.TimeStamp = DateTime.Now; 134. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); } 135. , null); 136. } 137. 138. #endregion 139. 140. #region Appointment Deleting 141. 142. public void ApptDeleted(object obj) 143. { 144. Interview deletedInterview = (from x in context.Interviews 145. where x.InterviewID == (obj as InterviewAppointment).InterviewID 146. select x).SingleOrDefault(); 147. 148. context.Interviews.Remove(deletedInterview); 149. context.SubmitChanges((s) => 150. { 151. ActionHistory myAction = new ActionHistory(); 152. myAction.InterviewID = deletedInterview.InterviewID; 153. myAction.PostingID = deletedInterview.PostingID; 154. myAction.ApplicantID = deletedInterview.ApplicantID; 155. myAction.Description = String.Format("Interview with {0} has been deleted by {1}", deletedInterview.ApplicantID.ToString(), "default user"); 156. myAction.TimeStamp = DateTime.Now; 157. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); 158. } 159. , null); 160. } 161. 162. #endregion 163. 164. #region Appointment Helpers :) 165. 166. public Interview AppointmentToEntity(InterviewAppointment ia) 167. { 168. Interview newInterview = new Interview(); 169. newInterview.Subject = ia.Subject; 170. newInterview.Body = ia.Body; 171. newInterview.Start = ia.Start; 172. newInterview.End = ia.End; 173. newInterview.ApplicantID = ia.ApplicantID; 174. newInterview.PostingID = ia.PostingID; 175. newInterview.InterviewID = ia.InterviewID; 176. 177. return newInterview; 178. } 179. 180. public InterviewAppointment EntityToAppointment(Interview ia) 181. { 182. InterviewAppointment newInterview = new InterviewAppointment(); 183. newInterview.Subject = ia.Subject; 184. newInterview.Body = ia.Body; 185. newInterview.Start = ia.Start; 186. newInterview.End = ia.End; 187. newInterview.ApplicantID = ia.ApplicantID; 188. newInterview.PostingID = ia.PostingID; 189. newInterview.InterviewID = ia.InterviewID; 190. 191. return newInterview; 192. } 193. 194. public void CopyAppointmentEdit(Interview entityInterview, InterviewAppointment appointmentInterview) 195. { 196. entityInterview.Subject = appointmentInterview.Subject; 197. entityInterview.Body = appointmentInterview.Body; 198. entityInterview.Start = appointmentInterview.Start; 199. entityInterview.End = appointmentInterview.End; 200. entityInterview.ApplicantID = appointmentInterview.ApplicantID; 201. entityInterview.PostingID = appointmentInterview.PostingID; 202. } 203. 204. #endregion 205.} One thing we're doing here which you won't see in any of the other ViewModels is creating a duplicate collection. I know this is something which will be fixed down the line for using RadScheduler, simplifying this process, but with WCF RIA changing as it does I wanted to ensure functionality would remain consistent as I continued development on this application. So, I do a little bit of duplication, but for the greater good. This all takes place starting on line 79, so for every entity that comes back we add it to the collection that is bound to RadScheduler. Otherwise, the DelegateCommands that you see correspond directly to the events they are named after. In each case, rather than sending over the full event arguments, I just send in the appointment in question (coming through as the object obj in all cases) so I can add (line 91), edit (line 119), and delete appointments (line 142) like normal. This just ensures they get updated back to my database. Also, the one bit of code you won't see is for the Appointment Creating (line 110) event- that is because in the command I've created I simply make the replacement I need to: 1.void element_AppointmentCreating(object sender, AppointmentCreatingEventArgs e) 2.{ 3. e.NewAppointment = new InterviewAppointment(); 4. base.ExecuteCommand(); 5.} And the ViewModel is none the wiser, the appointments just work as far as it is concerned since as they are created they become InterviewAppointments. End result? I've customized my EditAppointmentDialog as follows: And adding, editing, and deleting appointments works like a charm. I can even 'edit' by moving appointments around RadScheduler, so as they are dropped into a timeslot they perform their full edit routine and things get updated. And then, the Code-Behind Version Perhaps the thing I like the most about doing one then the other is I get to steal 90% or more of the code from the MVVM version. For example, the only real changes to the Code-Behind Xaml file exist in the control declaration, in which I use events instead of attached-behavior-event-commands: 01.<telerikScheduler:RadScheduler x:Name="xJobsScheduler" 02. Grid.Row="1" 03. Grid.Column="1" 04. Width="800" 05. MinWidth="600" 06. Height="500" 07. MinHeight="300" 08. EditAppointmentStyle="{StaticResource EditAppointmentStyle}" 09. AppointmentAdded="xJobsScheduler_AppointmentAdded" 10. AppointmentCreating="xJobsScheduler_AppointmentCreating" 11. AppointmentEdited="xJobsScheduler_AppointmentEdited" 12. AppointmentDeleted="xJobsScheduler_AppointmentDeleted"> 13.</telerikScheduler:RadScheduler> Easy, right? Otherwise, all the same styling in UserControl.Resources was re-used, right down to the DataContextProxy that lets us bind to a collection from our viewmodel (in this case, our code-behind) to use within the DataTemplate. The code conversion gets even easier, as I could literally copy and paste almost everything from the ViewModel to my Code-Behind, just a matter of pasting the right section into the right event. Here's the code-behind as proof: 001.public partial class SchedulingView : UserControl, INotifyPropertyChanged 002.{ 003. public RecruitingContext context; 004. 005. private QueryableCollectionView _jobsList; 006. public QueryableCollectionView JobsList 007. { 008. get { return this._jobsList; } 009. set 010. { 011. if (this._jobsList != value) 012. { 013. this._jobsList = value; 014. this.NotifyChanged("JobsList"); 015. } 016. } 017. } 018. 019. private QueryableCollectionView _applicantList; 020. public QueryableCollectionView ApplicantList 021. { 022. get { return _applicantList; } 023. set 024. { 025. if (_applicantList != value) 026. { 027. _applicantList = value; 028. NotifyChanged("ApplicantList"); 029. } 030. } 031. } 032. 033. private ObservableItemCollection<InterviewAppointment> _interviews = new ObservableItemCollection<InterviewAppointment>(); 034. public ObservableItemCollection<InterviewAppointment> Interviews 035. { 036. get { return _interviews; } 037. set 038. { 039. if (_interviews != value) 040. { 041. _interviews = value; 042. NotifyChanged("Interviews"); 043. } 044. } 045. } 046. 047. public SchedulingView() 048. { 049. InitializeComponent(); 050. 051. this.DataContext = this; 052. 053. this.Loaded += new RoutedEventHandler(SchedulingView_Loaded); 054. } 055. 056. void SchedulingView_Loaded(object sender, RoutedEventArgs e) 057. { 058. this.xJobsScheduler.AppointmentsSource = Interviews; 059. 060. context = new RecruitingContext(); 061. 062. LoadOperation loadop = context.Load(context.GetInterviewsQuery()); 063. loadop.Completed += new EventHandler(loadop_Completed); 064. 065. this._applicantList = new QueryableCollectionView(context.Applicants); 066. context.Load(context.GetApplicantsQuery()); 067. 068. this._jobsList = new QueryableCollectionView(context.JobPostings); 069. context.Load(context.GetJobPostingsQuery()); 070. } 071. 072. void loadop_Completed(object sender, EventArgs e) 073. { 074. LoadOperation loadop = sender as LoadOperation; 075. 076. _interviews.Clear(); 077. 078. foreach (var ent in loadop.Entities) 079. { 080. _interviews.Add(EntityToAppointment(ent as Interview)); 081. } 082. } 083. 084. private void xJobsScheduler_AppointmentAdded(object sender, Telerik.Windows.Controls.AppointmentAddedEventArgs e) 085. { 086. // now we have a new InterviewAppointment to add to our QCV :) 087. InterviewAppointment newInterview = e.Appointment as InterviewAppointment; 088. 089. this.context.Interviews.Add(AppointmentToEntity(newInterview)); 090. this.context.SubmitChanges((s) => 091. { 092. ActionHistory myAction = new ActionHistory(); 093. myAction.InterviewID = newInterview.InterviewID; 094. myAction.PostingID = newInterview.PostingID; 095. myAction.ApplicantID = newInterview.ApplicantID; 096. myAction.Description = String.Format("Interview with {0} has been created by {1}", newInterview.ApplicantID.ToString(), "default user"); 097. myAction.TimeStamp = DateTime.Now; 098. context.ActionHistories.Add(myAction); 099. context.SubmitChanges(); 100. } 101. , null); 102. } 103. 104. private void xJobsScheduler_AppointmentCreating(object sender, Telerik.Windows.Controls.AppointmentCreatingEventArgs e) 105. { 106. e.NewAppointment = new InterviewAppointment(); 107. } 108. 109. private void xJobsScheduler_AppointmentEdited(object sender, Telerik.Windows.Controls.AppointmentEditedEventArgs e) 110. { 111. Interview editedInterview = (from x in context.Interviews 112. where x.InterviewID == (e.Appointment as InterviewAppointment).InterviewID 113. select x).SingleOrDefault(); 114. 115. CopyAppointmentEdit(editedInterview, e.Appointment as InterviewAppointment); 116. 117. context.SubmitChanges((s) => 118. { 119. ActionHistory myAction = new ActionHistory(); 120. myAction.InterviewID = editedInterview.InterviewID; 121. myAction.PostingID = editedInterview.PostingID; 122. myAction.ApplicantID = editedInterview.ApplicantID; 123. myAction.Description = String.Format("Interview with {0} has been modified by {1}", editedInterview.ApplicantID.ToString(), "default user"); 124. myAction.TimeStamp = DateTime.Now; 125. context.ActionHistories.Add(myAction); 126. context.SubmitChanges(); 127. } 128. , null); 129. } 130. 131. private void xJobsScheduler_AppointmentDeleted(object sender, Telerik.Windows.Controls.AppointmentDeletedEventArgs e) 132. { 133. Interview deletedInterview = (from x in context.Interviews 134. where x.InterviewID == (e.Appointment as InterviewAppointment).InterviewID 135. select x).SingleOrDefault(); 136. 137. context.Interviews.Remove(deletedInterview); 138. context.SubmitChanges((s) => 139. { 140. ActionHistory myAction = new ActionHistory(); 141. myAction.InterviewID = deletedInterview.InterviewID; 142. myAction.PostingID = deletedInterview.PostingID; 143. myAction.ApplicantID = deletedInterview.ApplicantID; 144. myAction.Description = String.Format("Interview with {0} has been deleted by {1}", deletedInterview.ApplicantID.ToString(), "default user"); 145. myAction.TimeStamp = DateTime.Now; 146. context.ActionHistories.Add(myAction); 147. context.SubmitChanges(); 148. } 149. , null); 150. } 151. 152. #region Appointment Helpers :) 153. 154. public Interview AppointmentToEntity(InterviewAppointment ia) 155. { 156. Interview newInterview = new Interview(); 157. newInterview.Subject = ia.Subject; 158. newInterview.Body = ia.Body; 159. newInterview.Start = ia.Start; 160. newInterview.End = ia.End; 161. newInterview.ApplicantID = ia.ApplicantID; 162. newInterview.PostingID = ia.PostingID; 163. newInterview.InterviewID = ia.InterviewID; 164. 165. return newInterview; 166. } 167. 168. public InterviewAppointment EntityToAppointment(Interview ia) 169. { 170. InterviewAppointment newInterview = new InterviewAppointment(); 171. newInterview.Subject = ia.Subject; 172. newInterview.Body = ia.Body; 173. newInterview.Start = ia.Start; 174. newInterview.End = ia.End; 175. newInterview.ApplicantID = ia.ApplicantID; 176. newInterview.PostingID = ia.PostingID; 177. newInterview.InterviewID = ia.InterviewID; 178. 179. return newInterview; 180. } 181. 182. public void CopyAppointmentEdit(Interview entityInterview, InterviewAppointment appointmentInterview) 183. { 184. entityInterview.Subject = appointmentInterview.Subject; 185. entityInterview.Body = appointmentInterview.Body; 186. entityInterview.Start = appointmentInterview.Start; 187. entityInterview.End = appointmentInterview.End; 188. entityInterview.ApplicantID = appointmentInterview.ApplicantID; 189. entityInterview.PostingID = appointmentInterview.PostingID; 190. } 191. 192. #endregion 193. 194. #region INotifyPropertyChanged Members 195. 196. public event PropertyChangedEventHandler PropertyChanged; 197. 198. public void NotifyChanged(string propertyName) 199. { 200. if (string.IsNullOrEmpty(propertyName)) 201. throw new ArgumentException("propertyName"); 202. 203. PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); 204. } 205. 206. #endregion 207.} Nice... right? :) One really important thing to note as well. See on line 51 where I set the DataContext before the Loaded event? This is super important, as if you don't have this set before the usercontrol is loaded, the DataContextProxy has no context to use and your EditAppointmentDialog Job/Applicant dropdowns will be blank and empty. Trust me on this, took a little bit of debugging to figure out that by setting the DataContext post-loaded would only lead to disaster and frustration. Otherwise, the only other real difference is that instead of sending an ActionHistory item through an event to get added to the database and saved, I do those right in the callback from submitting. The Result Again, I only have to post one picture because these bad boys used nearly identical code for both the MVVM and the code-behind views, so our end result is... So what have we learned here today? One, for the most part this MVVM thing is somewhat easy. Yeah, you sometimes have to write a bunch of extra code, but with the help of a few useful snippits you can turn the process into a pretty streamlined little workflow. Heck, this story gets even easier as you can see in this blog post by Michael Washington- specifically run a find on 'InvokeCommandAction' and you'll see the section regarding the command on TreeView in Blend 4. Brilliant! MVVM never looked so sweet! Otherwise, it is business as usual with RadScheduler for Silverlight whichever path you're choosing for your development. Between now and the next post, I'll be cleaning up styles a bit (those RadComboBoxes are a little too close to my labels!) and adding some to the RowDetailsViews for Applicants and Jobs, so you can see all the info for an appointment in the dropdown tab view. Otherwise, we're about ready to call a wrap on this oneDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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Silverlight Recruiting Application Part 6 - Adding an Interview Scheduling Module/View

Between the last post and this one I went ahead and carried the ideas for the Jobs module and view into the Applicants module and view- they're both doing more or less the same thing, except with different objects being at their core. Made for an easy cut-and-paste operation with a few items being switched from one to another. Now that we have the ability to add postings and applicants, wouldn't it be nice if we could schedule an interview? Of course it would! Scheduling Module I think you get the drift from previous posts that these project structures start looking somewhat similar. The interview scheduling module is no different than the rest- it gets a SchedulingModule.cs file at the root that inherits from IModule, and there is a single SchedulerView.xsml and SchedulerViewModel.cs setup for our V+VM. We have one unique concern as we enter into this- RadScheduler deals with AppointmentsSource, not ItemsSource, so there are some special considerations to take into account when planning this module. First, I need something which inherits from AppointmentBase. This is the core of the RadScheduler appointment, and if you are planning to do any form of custom appointment, you'll want it to inherit from this. Then you can add-on functionality as needed. Here is my addition to the mix, the InterviewAppointment: 01.public class InterviewAppointment : AppointmentBase 02.{ 03. private int _applicantID; 04. public int ApplicantID 05. { 06. get { return this._applicantID; } 07. set 08. { 09. if (_applicantID != value) 10. { 11. _applicantID = value; 12. OnPropertyChanged("ApplicantID"); 13. } 14. } 15. } 16. 17. private int _postingID; 18. public int PostingID 19. { 20. get { return _postingID; } 21. set 22. { 23. if (_postingID != value) 24. { 25. _postingID = value; 26. OnPropertyChanged("PostingID"); 27. } 28. } 29. } 30. 31. private string _body; 32. public string Body 33. { 34. get { return _body; } 35. set 36. { 37. if (_body != value) 38. { 39. _body = value; 40. OnPropertyChanged("Body"); 41. } 42. } 43. } 44. 45. private int _interviewID; 46. public int InterviewID 47. { 48. get { return _interviewID; } 49. set 50. { 51. if (_interviewID != value) 52. { 53. _interviewID = value; 54. OnPropertyChanged("InterviewID"); 55. } 56. } 57. } 58. 59. public override IAppointment Copy() 60. { 61. IAppointment appointment = new InterviewAppointment(); 62. appointment.CopyFrom(this); 63. return appointment; 64. } 65. 66. public override void CopyFrom(IAppointment other) 67. { 68. base.CopyFrom(other); 69. var appointment = other as InterviewAppointment; 70. if (appointment != null) 71. { 72. ApplicantID = appointment.ApplicantID; 73. PostingID = appointment.PostingID; 74. Body = appointment.Body; 75. InterviewID = appointment.InterviewID; 76. } 77. } 78.} Nothing too exciting going on here, we just make sure that our custom fields are persisted (specifically set in CopyFrom at the bottom) and notifications are fired- otherwise this ends up exactly like the standard appointment as far as interactions, etc. But if we've got custom appointment items... that also means we need to customize what our appointment dialog window will look like. Customizing the Edit Appointment Dialog This initially sounds a lot more intimidating than it really is. The first step here depends on what you're dealing with for theming, but for ease of everything I went ahead and extracted my templates in Blend for RadScheduler so I could modify it as I pleased. For the faint of heart, the RadScheduler template is a few thousand lines of goodness since there are some very complex things going on in that control. I've gone ahead and trimmed down the template parts I don't need as much as possible, so what is left is all that is relevant to the Edit Appointment Dialog. Here's the resulting Xaml, with line numbers, so I can explain further: 001.<UserControl.Resources> 002.  003. <helpers:DataContextProxy x:Key="DataContextProxy" /> 004. 005. <telerik:Windows7Theme x:Key="Theme" /> 006. <SolidColorBrush x:Key="DialogWindowBackground" 007. Color="White" /> 008. <SolidColorBrush x:Key="CategorySelectorBorderBrush" 009. Color="#FFB1B1B1" /> 010. <LinearGradientBrush x:Key="RadToolBar_InnerBackground" 011. EndPoint="0.5,1" 012. StartPoint="0.5,0"> 013. <GradientStop Color="#FFFDFEFF" 014. Offset="0" /> 015. <GradientStop Color="#FFDDE9F7" 016. Offset="1" /> 017. <GradientStop Color="#FFE6F0FA" 018. Offset="0.5" /> 019. <GradientStop Color="#FFDCE6F4" 020. Offset="0.5" /> 021. </LinearGradientBrush> 022. <Style x:Key="FormElementTextBlockStyle" 023. TargetType="TextBlock"> 024. <Setter Property="HorizontalAlignment" 025. Value="Right" /> 026. <Setter Property="VerticalAlignment" 027. Value="Top" /> 028. <Setter Property="Margin" 029. Value="15, 15, 0, 2" /> 030. </Style> 031. <Style x:Key="FormElementStyle" 032. TargetType="FrameworkElement"> 033. <Setter Property="Margin" 034. Value="10, 10, 0, 2" /> 035. </Style> 036. <SolidColorBrush x:Key="GenericShallowBorderBrush" 037. Color="#FF979994" /> 038. <telerik:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" /> 039. <telerikScheduler:ImportanceToBooleanConverter x:Key="ImportanceToBooleanConverter" /> 040. <telerikScheduler:NullToVisibilityConverter x:Key="NullToVisibilityConverter" /> 041. <telerikScheduler:InvertedNullToVisibilityConverter x:Key="InvertedNullToVisibilityConverter" /> 042. <scheduler:ResourcesSeparatorConverter x:Key="ResourcesSeparatorConverter" /> 043. <DataTemplate x:Key="IconDataEditTemplate"> 044. <Image Source="/Telerik.Windows.Controls.Scheduler;component/Themes/Office/Images/cal.png" 045. Margin="3,3,0,0" 046. Width="16" 047. Height="16" /> 048. </DataTemplate> 049. <DataTemplate x:Key="SingleSelectionTemplate"> 050. <Grid VerticalAlignment="Stretch" 051. HorizontalAlignment="Stretch"> 052. <Grid.RowDefinitions> 053. <RowDefinition Height="Auto" /> 054. </Grid.RowDefinitions> 055. <Grid.ColumnDefinitions> 056. <ColumnDefinition Width="Auto" 057. MinWidth="84" /> 058. <ColumnDefinition Width="Auto" 059. MinWidth="200" /> 060. </Grid.ColumnDefinitions> 061. <TextBlock x:Name="SelectionNameLabel" 062. Margin="0,13,4,2" 063. Text="{Binding ResourceType.DisplayName}" 064. Style="{StaticResource FormElementTextBlockStyle}" 065. Grid.Column="0" /> 066. <telerikInput:RadComboBox ItemsSource="{Binding ResourceItems}" 067. Width="185" 068. Margin="5,10,20,2" 069. HorizontalAlignment="Left" 070. Grid.Column="1" 071. ClearSelectionButtonVisibility="Visible" 072. ClearSelectionButtonContent="Clear All" 073. DisplayMemberPath="Resource.DisplayName" 074. telerik:StyleManager.Theme="{StaticResource Theme}" 075. SelectedItem="{Binding SelectedItem, Mode=TwoWay}" /> 076. </Grid> 077. </DataTemplate> 078. <DataTemplate x:Key="MultipleSelectionTemplate"> 079. <Grid VerticalAlignment="Stretch" 080. HorizontalAlignment="Stretch"> 081. <Grid.RowDefinitions> 082. <RowDefinition Height="Auto" /> 083. </Grid.RowDefinitions> 084. <Grid.ColumnDefinitions> 085. <ColumnDefinition Width="Auto" 086. MinWidth="84" /> 087. <ColumnDefinition Width="Auto" 088. MinWidth="200" /> 089. </Grid.ColumnDefinitions> 090. <TextBlock x:Name="SelectionNameLabel" 091. Grid.Column="0" 092. Text="{Binding ResourceType.DisplayName}" 093. Margin="0,13,4,2" 094. Style="{StaticResource FormElementTextBlockStyle}" /> 095. <telerikInput:RadComboBox Grid.Column="1" 096. Width="185" 097. HorizontalAlignment="Left" 098. Margin="5,10,20,2" 099. ItemsSource="{Binding ResourceItems}" 100. SelectedIndex="{Binding SelectedIndex, Mode=TwoWay}" 101. ClearSelectionButtonVisibility="Visible" 102. ClearSelectionButtonContent="Clear All" 103. telerik:StyleManager.Theme="{StaticResource Theme}"> 104. <telerikInput:RadComboBox.ItemTemplate> 105. <DataTemplate> 106. <Grid HorizontalAlignment="Stretch" 107. VerticalAlignment="Stretch"> 108. <CheckBox VerticalAlignment="Center" 109. HorizontalContentAlignment="Stretch" 110. VerticalContentAlignment="Center" 111. IsChecked="{Binding IsChecked, Mode=TwoWay}" 112. Content="{Binding Resource.DisplayName}"> 113. <CheckBox.ContentTemplate> 114. <DataTemplate> 115. <TextBlock HorizontalAlignment="Stretch" 116. VerticalAlignment="Stretch" 117. Text="{Binding Content, RelativeSource={RelativeSource TemplatedParent}}" /> 118. </DataTemplate> 119. </CheckBox.ContentTemplate> 120. </CheckBox> 121. </Grid> 122. </DataTemplate> 123. </telerikInput:RadComboBox.ItemTemplate> 124. </telerikInput:RadComboBox> 125. </Grid> 126. </DataTemplate> 127. <scheduler:ResourceTypeTemplateSelector x:Key="ItemTemplateSelector" 128. MultipleSelectionTemplate="{StaticResource MultipleSelectionTemplate}" 129. SingleSelectionTemplate="{StaticResource SingleSelectionTemplate}" /> 130.  131. 132. <ControlTemplate x:Key="EditAppointmentTemplate" 133. TargetType="telerikScheduler:AppointmentDialogWindow"> 134. <StackPanel Background="{TemplateBinding Background}" 135. UseLayoutRounding="True"> 136. <StackPanel Grid.Row="0" 137. Orientation="Horizontal" 138. Background="{StaticResource RadToolBar_InnerBackground}" 139. Grid.ColumnSpan="2" 140. Height="0"> 141.  142. <Border Margin="1,1,0,0" 143. Background="#50000000" 144. HorizontalAlignment="Left" 145. VerticalAlignment="Center" 146. Width="2" 147. Height="16"> 148. <Border Margin="0,0,1,1" 149. Background="#80FFFFFF" 150. HorizontalAlignment="Left" 151. Width="1" /> 152. </Border> 153. <Border Margin="1,1,0,0" 154. Background="#50000000" 155. HorizontalAlignment="Left" 156. VerticalAlignment="Center" 157. Width="2" 158. Height="16"> 159. <Border Margin="0,0,1,1" 160. Background="#80FFFFFF" 161. HorizontalAlignment="Left" 162. Width="1" /> 163. </Border> 164. <TextBlock telerik:LocalizationManager.ResourceKey="ShowAs" 165. VerticalAlignment="Center" 166. Margin="5,0,0,0" /> 167. <telerikInput:RadComboBox ItemsSource="{TemplateBinding TimeMarkers}" 168. Width="100" 169. Height="20" 170. VerticalAlignment="Center" 171. Margin="5,0,0,0" 172. ClearSelectionButtonVisibility="Visible" 173. ClearSelectionButtonContent="Clear" 174. SelectedItem="{Binding TimeMarker,RelativeSource={RelativeSource TemplatedParent},Mode=TwoWay}" 175. telerik:StyleManager.Theme="{StaticResource Theme}"> 176. <telerikInput:RadComboBox.ItemTemplate> 177. <DataTemplate> 178. <StackPanel Orientation="Horizontal"> 179. <Rectangle Fill="{Binding TimeMarkerBrush}" 180. Margin="2" 181. Width="12" 182. Height="12" /> 183. <TextBlock Text="{Binding TimeMarkerName}" 184. Margin="2" /> 185. </StackPanel> 186. </DataTemplate> 187. </telerikInput:RadComboBox.ItemTemplate> 188. </telerikInput:RadComboBox> 189. <telerik:RadToggleButton x:Name="High" 190. BorderThickness="0" 191. Background="{StaticResource RadToolBar_InnerBackground}" 192. DataContext="{TemplateBinding EditedAppointment}" 193. telerik:StyleManager.Theme="{StaticResource Theme}" 194. IsChecked="{Binding Importance,Mode=TwoWay, Converter={StaticResource ImportanceToBooleanConverter},ConverterParameter=High}" 195. Margin="2,2,0,2" 196. Width="23" 197. Height="23" 198. HorizontalContentAlignment="Center" 199. ToolTipService.ToolTip="High importance" 200. CommandParameter="High" 201. Command="telerikScheduler:RadSchedulerCommands.SetAppointmentImportance"> 202. <StackPanel HorizontalAlignment="Center"> 203. <Path Stretch="Fill" 204. Height="10" 205. HorizontalAlignment="Center" 206. VerticalAlignment="Top" 207. Width="5.451" 208. Data="M200.39647,58.840393 C200.39337,58.336426 201.14566,57.683922 202.56244,57.684292 C204.06589,57.684685 204.73764,58.357765 204.72783,58.992363 C205.04649,61.795574 203.04713,64.181099 202.47388,66.133446 C201.93753,64.154961 199.9471,61.560352 200.39647,58.840393 z"> 209. <Path.Fill> 210. <LinearGradientBrush EndPoint="1.059,0.375" 211. StartPoint="-0.457,0.519"> 212. <GradientStop Color="#FFFF0606" 213. Offset="0.609" /> 214. <GradientStop Color="#FFBF0303" 215. Offset="0.927" /> 216. </LinearGradientBrush> 217. </Path.Fill> 218. </Path> 219. <Ellipse Height="3" 220. HorizontalAlignment="Center" 221. Margin="0,-1,0,0" 222. VerticalAlignment="Top" 223. Width="3"> 224. <Ellipse.Fill> 225. <RadialGradientBrush> 226. <GradientStop Color="#FFFF0606" 227. Offset="0" /> 228. <GradientStop Color="#FFBF0303" 229. Offset="1" /> 230. </RadialGradientBrush> 231. </Ellipse.Fill> 232. </Ellipse> 233. </StackPanel> 234. </telerik:RadToggleButton> 235. <telerik:RadToggleButton x:Name="Low" 236. HorizontalContentAlignment="Center" 237. BorderThickness="0" 238. Background="{StaticResource RadToolBar_InnerBackground}" 239. DataContext="{TemplateBinding EditedAppointment}" 240. IsChecked="{Binding Importance,Mode=TwoWay, Converter={StaticResource ImportanceToBooleanConverter},ConverterParameter=Low}" 241. Margin="0,2,0,2" 242. Width="23" 243. Height="23" 244. ToolTipService.ToolTip="Low importance" 245. CommandParameter="Low" 246. telerik:StyleManager.Theme="{StaticResource Theme}" 247. Command="telerikScheduler:RadSchedulerCommands.SetAppointmentImportance"> 248. <Path Stretch="Fill" 249. Height="12" 250. HorizontalAlignment="Center" 251. VerticalAlignment="Top" 252. Width="9" 253. Data="M222.40353,60.139881 L226.65768,60.139843 L226.63687,67.240196 L229.15347,67.240196 L224.37816,71.394943 L219.65274,67.240196 L222.37572,67.219345 z" 254. Stroke="#FF0365A7"> 255. <Path.Fill> 256. <LinearGradientBrush EndPoint="1.059,0.375" 257. StartPoint="-0.457,0.519"> 258. <GradientStop Color="#FFBBE4FF" /> 259. <GradientStop Color="#FF024572" 260. Offset="0.836" /> 261. <GradientStop Color="#FF43ADF4" 262. Offset="0.466" /> 263. </LinearGradientBrush> 264. </Path.Fill> 265. </Path> 266. </telerik:RadToggleButton> 267. </StackPanel > 268. <Border DataContext="{TemplateBinding EditedAppointment}" 269. Background="{Binding Category.CategoryBrush}" 270. Visibility="{Binding Category,Converter={StaticResource NullToVisibilityConverter}}" 271. CornerRadius="3" 272. Height="20" 273. Margin="5,10,5,0"> 274. <TextBlock Text="{Binding Category.DisplayName}" 275. VerticalAlignment="Center" 276. Margin="5,0,0,0" /> 277. </Border> 278. <Grid VerticalAlignment="Stretch" 279. HorizontalAlignment="Stretch" 280. DataContext="{TemplateBinding EditedAppointment}" 281. Background="{TemplateBinding Background}"> 282. <Grid.RowDefinitions> 283. <RowDefinition Height="Auto" /> 284. <RowDefinition Height="Auto" /> 285. <RowDefinition Height="Auto" /> 286. <RowDefinition Height="Auto" /> 287. <RowDefinition Height="Auto" /> 288. <RowDefinition Height="Auto" /> 289. <RowDefinition Height="Auto" /> 290. <RowDefinition Height="Auto" /> 291. <RowDefinition Height="Auto" /> 292. <RowDefinition Height="Auto" /> 293. </Grid.RowDefinitions> 294. <Grid.ColumnDefinitions> 295. <ColumnDefinition Width="Auto" 296. MinWidth="100" /> 297. <ColumnDefinition Width="Auto" 298. MinWidth="200" /> 299. </Grid.ColumnDefinitions> 300.  301. <TextBlock x:Name="SubjectLabel" 302. Grid.Row="0" 303. Grid.Column="0" 304. Margin="0,15,0,2" 305. telerik:LocalizationManager.ResourceKey="Subject" 306. Style="{StaticResource FormElementTextBlockStyle}" /> 307. <TextBox x:Name="Subject" 308. Grid.Row="0" 309. Grid.Column="1" 310. MinHeight="22" 311. Padding="4 2" 312. Width="340" 313. HorizontalAlignment="Left" 314. Text="{Binding Subject, Mode=TwoWay}" 315. MaxLength="255" 316. telerik:StyleManager.Theme="{StaticResource Theme}" 317. Margin="10,12,20,2" /> 318.  319. <TextBlock x:Name="DescriptionLabel" 320. Grid.Row="1" 321. Grid.Column="0" 322. Margin="0,13,0,2" 323. telerik:LocalizationManager.ResourceKey="Body" 324. Style="{StaticResource FormElementTextBlockStyle}" /> 325. <TextBox x:Name="Body" 326. VerticalAlignment="top" 327. Grid.Row="1" 328. Grid.Column="1" 329. Height="Auto" 330. MaxHeight="82" 331. Width="340" 332. HorizontalAlignment="Left" 333. MinHeight="22" 334. Padding="4 2" 335. TextWrapping="Wrap" 336. telerik:StyleManager.Theme="{StaticResource Theme}" 337. Text="{Binding Body, Mode=TwoWay}" 338. AcceptsReturn="true" 339. Margin="10,10,20,2" 340. HorizontalScrollBarVisibility="Auto" 341. VerticalScrollBarVisibility="Auto" /> 342.  343. <TextBlock x:Name="StartDateLabel" 344. Grid.Row="2" 345. Grid.Column="0" 346. Margin="0,13,0,2" 347. telerik:LocalizationManager.ResourceKey="StartTime" 348. Style="{StaticResource FormElementTextBlockStyle}" /> 349. <telerikScheduler:DateTimePicker x:Name="StartDateTime" 350. Height="22" 351. Grid.Row="2" 352. Grid.Column="1" 353. HorizontalAlignment="Left" 354. Margin="10,10,20,2" 355. Style="{StaticResource FormElementStyle}" 356. SelectedDateTime="{Binding Start, Mode=TwoWay}" 357. telerikScheduler:StartEndDatePicker.EndPicker="{Binding ElementName=EndDateTime}" 358. IsTabStop="False" 359. IsEnabled="False" /> 360. <TextBlock x:Name="EndDateLabel" 361. Grid.Row="3" 362. Grid.Column="0" 363. Margin="0,13,0,2" 364. telerik:LocalizationManager.ResourceKey="EndTime" 365. Style="{StaticResource FormElementTextBlockStyle}" /> 366. <telerikScheduler:DateTimePicker x:Name="EndDateTime" 367. Height="22" 368. Grid.Row="3" 369. Grid.Column="1" 370. HorizontalAlignment="Left" 371. Margin="10,10,20,2" 372. Style="{StaticResource FormElementStyle}" 373. IsTabStop="False" 374. IsEnabled="False" 375. SelectedDateTime="{Binding End, Mode=TwoWay}" /> 376.  377. <CheckBox x:Name="AllDayEventCheckbox" 378. IsChecked="{Binding IsAllDayEvent, Mode=TwoWay}" 379. Grid.Row="4" 380. Grid.Column="1" 381. Margin="10,10,20,2" 382. HorizontalAlignment="Left" 383. telerik:StyleManager.Theme="{StaticResource Theme}" 384. telerik:LocalizationManager.ResourceKey="AllDayEvent"> 385. <telerik:CommandManager.InputBindings> 386. <telerik:InputBindingCollection> 387. <telerik:MouseBinding Command="telerikScheduler:RadSchedulerCommands.ChangeTimePickersVisibility" 388. Gesture="LeftClick" /> 389. </telerik:InputBindingCollection> 390. </telerik:CommandManager.InputBindings> 391. </CheckBox> 392. <Grid Grid.Row="5" 393. Grid.ColumnSpan="2"> 394. <Grid.ColumnDefinitions> 395. <ColumnDefinition Width="Auto" 396. MinWidth="100" /> 397. <ColumnDefinition Width="Auto" 398. MinWidth="200" /> 399. </Grid.ColumnDefinitions> 400. <Grid.RowDefinitions> 401. <RowDefinition Height="Auto" /> 402. <RowDefinition Height="Auto" /> 403. </Grid.RowDefinitions> 404. <TextBlock Text="Applicant" 405. Margin="0,13,0,2" 406. Style="{StaticResource FormElementTextBlockStyle}" /> 407. <telerikInput:RadComboBox IsEditable="False" 408. Grid.Column="1" 409. Height="24" 410. VerticalAlignment="Center" 411. ItemsSource="{Binding Source={StaticResource DataContextProxy}, Path=DataSource.ApplicantList}" 412. SelectedValue="{Binding ApplicantID, Mode=TwoWay}" 413. SelectedValuePath="ApplicantID" 414. DisplayMemberPath="FirstName" /> 415. 416. <TextBlock Text="Job" 417. Margin="0,13,0,2" 418. Grid.Row="1" 419. Style="{StaticResource FormElementTextBlockStyle}" /> 420. <telerikInput:RadComboBox IsEditable="False" 421. Grid.Column="1" 422. Grid.Row="1" 423. Height="24" 424. VerticalAlignment="Center" 425. ItemsSource="{Binding Source={StaticResource DataContextProxy}, Path=DataSource.JobsList}" 426. SelectedValue="{Binding PostingID, Mode=TwoWay}" 427. SelectedValuePath="PostingID" 428. DisplayMemberPath="JobTitle"/> 429. </Grid> 430.  431. <Grid x:Name="ResourcesLayout" 432. Grid.Row="7" 433. Grid.Column="0" 434. Grid.ColumnSpan="2" 435. MaxHeight="130" 436. Margin="20,5,20,0"> 437. <Border Margin="0" 438. BorderThickness="1" 439. BorderBrush="{StaticResource GenericShallowBorderBrush}" 440. Visibility="{Binding ElementName=ResourcesScrollViewer, Path=ComputedVerticalScrollBarVisibility}"></Border> 441. <ScrollViewer x:Name="ResourcesScrollViewer" 442. IsTabStop="false" 443. Grid.Row="6" 444. Grid.Column="0" 445. Grid.ColumnSpan="2" 446. Margin="1" 447. telerik:StyleManager.Theme="{StaticResource Theme}" 448. VerticalScrollBarVisibility="Auto"> 449. <scheduler:ResourcesItemsControl x:Name="PART_Resources" 450. HorizontalAlignment="Left" 451. Padding="0,2,0,5" 452. IsTabStop="false" 453. ItemsSource="{TemplateBinding ResourceTypeModels}" 454. ItemTemplateSelector="{StaticResource ItemTemplateSelector}" /> 455. </ScrollViewer> 456. </Grid> 457. <StackPanel x:Name="FooterControls" 458. Margin="5 10 10 10" 459. Grid.Row="8" 460. Grid.Column="1" 461. HorizontalAlignment="Left" 462. Orientation="Horizontal"> 463. <telerik:RadButton x:Name="OKButton" 464. Margin="5" 465. Padding="10 0" 466. MinWidth="80" 467. Command="telerikScheduler:RadSchedulerCommands.SaveAppointment" 468. telerik:StyleManager.Theme="{StaticResource Theme}" 469. telerikNavigation:RadWindow.ResponseButton="Accept" 470. telerik:LocalizationManager.ResourceKey="SaveAndCloseCommandText"> 471. </telerik:RadButton> 472. <telerik:RadButton x:Name="CancelButton" 473. Margin="5" 474. Padding="10 0" 475. MinWidth="80" 476. telerik:LocalizationManager.ResourceKey="Cancel" 477. telerik:StyleManager.Theme="{StaticResource Theme}" 478. telerikNavigation:RadWindow.ResponseButton="Cancel" 479. Command="telerik:WindowCommands.Close"> 480. </telerik:RadButton> 481. </StackPanel> 482. </Grid> 483. <vsm:VisualStateManager.VisualStateGroups> 484. <vsm:VisualStateGroup x:Name="RecurrenceRuleState"> 485. <vsm:VisualState x:Name="RecurrenceRuleIsNull"> 486. <Storyboard> 487. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="StartDateTime" 488. Storyboard.TargetProperty="IsEnabled" 489. Duration="0"> 490. <DiscreteObjectKeyFrame KeyTime="0" 491. Value="True" /> 492. </ObjectAnimationUsingKeyFrames> 493. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EndDateTime" 494. Storyboard.TargetProperty="IsEnabled" 495. Duration="0"> 496. <DiscreteObjectKeyFrame KeyTime="0" 497. Value="True" /> 498. </ObjectAnimationUsingKeyFrames> 499. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="AllDayEventCheckbox" 500. Storyboard.TargetProperty="IsEnabled" 501. Duration="0"> 502. <DiscreteObjectKeyFrame KeyTime="0" 503. Value="True" /> 504. </ObjectAnimationUsingKeyFrames> 505. </Storyboard> 506. </vsm:VisualState> 507. <vsm:VisualState x:Name="RecurrenceRuleIsNotNull"> 508. <Storyboard> 509. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="StartDateTime" 510. Storyboard.TargetProperty="IsEnabled" 511. Duration="0"> 512. <DiscreteObjectKeyFrame KeyTime="0" 513. Value="False" /> 514. </ObjectAnimationUsingKeyFrames> 515. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EndDateTime" 516. Storyboard.TargetProperty="IsEnabled" 517. Duration="0"> 518. <DiscreteObjectKeyFrame KeyTime="0" 519. Value="False" /> 520. </ObjectAnimationUsingKeyFrames> 521. <ObjectAnimationUsingKeyFrames Storyboard.TargetName="AllDayEventCheckbox" 522. Storyboard.TargetProperty="IsEnabled" 523. Duration="0"> 524. <DiscreteObjectKeyFrame KeyTime="0" 525. Value="False" /> 526. </ObjectAnimationUsingKeyFrames> 527. </Storyboard> 528. </vsm:VisualState> 529. </vsm:VisualStateGroup> 530. </vsm:VisualStateManager.VisualStateGroups> 531. </StackPanel> 532. </ControlTemplate> 533. <DataTemplate x:Key="AppointmentDialogWindowHeaderDataTemplate"> 534. <StackPanel Orientation="Horizontal" 535. MaxWidth="400"> 536. <TextBlock telerik:LocalizationManager.ResourceKey="Event" 537. Visibility="{Binding Appointment.IsAllDayEvent, Converter={StaticResource BooleanToVisibilityConverter}}" /> 538. <TextBlock telerik:LocalizationManager.ResourceKey="Appointment" 539. Visibility="{Binding Appointment.IsAllDayEvent, Converter={StaticResource InvertedBooleanToVisibilityConverter}}" /> 540. <TextBlock Text=" - " /> 541. <TextBlock x:Name="SubjectTextBlock" 542. Visibility="{Binding Appointment.Subject, Converter={StaticResource NullToVisibilityConverter}}" 543. Text="{Binding Appointment.Subject}" /> 544. <TextBlock telerik:LocalizationManager.ResourceKey="Untitled" 545. Visibility="{Binding Appointment.Subject, Converter={StaticResource InvertedNullToVisibilityConverter}}" /> 546. </StackPanel> 547. </DataTemplate> 548. <Style x:Key="EditAppointmentStyle" 549. TargetType="telerikScheduler:AppointmentDialogWindow"> 550. <Setter Property="IconTemplate" 551. Value="{StaticResource IconDataEditTemplate}" /> 552. <Setter Property="HeaderTemplate" 553. Value="{StaticResource AppointmentDialogWindowHeaderDataTemplate}" /> 554. <Setter Property="Background" 555. Value="{StaticResource DialogWindowBackground}" /> 556. <Setter Property="Template" 557. Value="{StaticResource EditAppointmentTemplate}" /> 558. </Style> 559.</UserControl.Resources> The first line there is the DataContextProxy I mentioned previously- we use that again to work a bit of magic in this template. Where we start getting into the dialog in question is line 132, but line 407 is where things start getting interesting. The ItemsSource is pointing at a list that exists in my ViewModel (or code-behind, if it is used as a DataContext), the SelectedValue is the item I am actually binding from the applicant (note the TwoWay binding), and SelectedValuePath and DisplayMemberPath ensure the proper applicant is being displayed from the collection. You will also see similar starting on line 420 where I do the same for the Jobs we'll be displaying. Just to wrap-up the Xaml, here's the RadScheduler declaraction that ties this all together and will be the main focus of our view: 01.<telerikScheduler:RadScheduler x:Name="xJobsScheduler" 02. Grid.Row="1" 03. Grid.Column="1" 04. Width="800" 05. MinWidth="600" 06. Height="500" 07. MinHeight="300" 08. AppointmentsSource="{Binding Interviews}" 09. EditAppointmentStyle="{StaticResource EditAppointmentStyle}" 10. command:AppointmentAddedEventClass.Command="{Binding AddAppointmentCommand}" 11. command:ApptCreatedEventClass.Command="{Binding ApptCreatingCommand}" 12. command:ApptEditedEventClass.Command="{Binding ApptEditedCommand}" 13. command:ApptDeletedEventClass.Command="{Binding ApptDeletedCommand}"> 14.</telerikScheduler:RadScheduler> Now, we get to the ViewModel and what it takes to get that rigged up. And for those of you who remember the jobs post, those command:s in the Xaml are pointing to attached behavior commands that reproduce the respective events. This becomes very handy when we're setting up the code-behind version. ;) ViewModel I've been liking this approach so far, so I'm going to put the entire ViewModel here and then go into the lines of interest. Of course, feel free to ask me questions about anything that isn't clear (by line number, ideally) so I can help out if I have missed anything important: 001.public class SchedulerViewModel : ViewModelBase 002.{ 003. private readonly IEventAggregator eventAggregator; 004. private readonly IRegionManager regionManager; 005. 006. public RecruitingContext context; 007. 008. private ObservableItemCollection<InterviewAppointment> _interviews = new ObservableItemCollection<InterviewAppointment>(); 009. public ObservableItemCollection<InterviewAppointment> Interviews 010. { 011. get { return _interviews; } 012. set 013. { 014. if (_interviews != value) 015. { 016. _interviews = value; 017. NotifyChanged("Interviews"); 018. } 019. } 020. } 021. 022. private QueryableCollectionView _jobsList; 023. public QueryableCollectionView JobsList 024. { 025. get { return this._jobsList; } 026. set 027. { 028. if (this._jobsList != value) 029. { 030. this._jobsList = value; 031. this.NotifyChanged("JobsList"); 032. } 033. } 034. } 035. 036. private QueryableCollectionView _applicantList; 037. public QueryableCollectionView ApplicantList 038. { 039. get { return _applicantList; } 040. set 041. { 042. if (_applicantList != value) 043. { 044. _applicantList = value; 045. NotifyChanged("ApplicantList"); 046. } 047. } 048. } 049. 050. public DelegateCommand<object> AddAppointmentCommand { get; set; } 051. public DelegateCommand<object> ApptCreatingCommand { get; set; } 052. public DelegateCommand<object> ApptEditedCommand { get; set; } 053. public DelegateCommand<object> ApptDeletedCommand { get; set; } 054. 055. public SchedulerViewModel(IEventAggregator eventAgg, IRegionManager regionmanager) 056. { 057. // set Unity items 058. this.eventAggregator = eventAgg; 059. this.regionManager = regionmanager; 060. 061. // load our context 062. context = new RecruitingContext(); 063. LoadOperation<Interview> loadOp = context.Load(context.GetInterviewsQuery()); 064. loadOp.Completed += new EventHandler(loadOp_Completed); 065. 066. this._jobsList = new QueryableCollectionView(context.JobPostings); 067. context.Load(context.GetJobPostingsQuery()); 068. 069. this._applicantList = new QueryableCollectionView(context.Applicants); 070. context.Load(context.GetApplicantsQuery()); 071. 072. AddAppointmentCommand = new DelegateCommand<object>(this.AddAppt); 073. ApptCreatingCommand = new DelegateCommand<object>(this.ApptCreating); 074. ApptEditedCommand = new DelegateCommand<object>(this.ApptEdited); 075. ApptDeletedCommand = new DelegateCommand<object>(this.ApptDeleted); 076. 077. } 078. 079. void loadOp_Completed(object sender, EventArgs e) 080. { 081. LoadOperation loadop = sender as LoadOperation; 082. 083. foreach (var ent in loadop.Entities) 084. { 085. _interviews.Add(EntityToAppointment(ent as Interview)); 086. } 087. } 088. 089. #region Appointment Adding 090. 091. public void AddAppt(object obj) 092. { 093. // now we have a new InterviewAppointment to add to our QCV :) 094. InterviewAppointment newInterview = obj as InterviewAppointment; 095. 096. this.context.Interviews.Add(AppointmentToEntity(newInterview)); 097. this.context.SubmitChanges((s) => 098. { 099. ActionHistory myAction = new ActionHistory(); 100. myAction.InterviewID = newInterview.InterviewID; 101. myAction.PostingID = newInterview.PostingID; 102. myAction.ApplicantID = newInterview.ApplicantID; 103. myAction.Description = String.Format("Interview with {0} has been created by {1}", newInterview.ApplicantID.ToString(), "default user"); 104. myAction.TimeStamp = DateTime.Now; 105. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); 106. } 107. , null); 108. } 109. 110. public void ApptCreating(object obj) 111. { 112. // handled in the behavior, just a placeholder to ensure it runs :) 113. } 114. 115. #endregion 116. 117. #region Appointment Editing 118. 119. public void ApptEdited(object obj) 120. { 121. Interview editedInterview = (from x in context.Interviews 122. where x.InterviewID == (obj as InterviewAppointment).InterviewID 123. select x).SingleOrDefault(); 124. 125. CopyAppointmentEdit(editedInterview, obj as InterviewAppointment); 126. 127. context.SubmitChanges((s) => { 128. ActionHistory myAction = new ActionHistory(); 129. myAction.InterviewID = editedInterview.InterviewID; 130. myAction.PostingID = editedInterview.PostingID; 131. myAction.ApplicantID = editedInterview.ApplicantID; 132. myAction.Description = String.Format("Interview with {0} has been modified by {1}", editedInterview.ApplicantID.ToString(), "default user"); 133. myAction.TimeStamp = DateTime.Now; 134. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); } 135. , null); 136. } 137. 138. #endregion 139. 140. #region Appointment Deleting 141. 142. public void ApptDeleted(object obj) 143. { 144. Interview deletedInterview = (from x in context.Interviews 145. where x.InterviewID == (obj as InterviewAppointment).InterviewID 146. select x).SingleOrDefault(); 147. 148. context.Interviews.Remove(deletedInterview); 149. context.SubmitChanges((s) => 150. { 151. ActionHistory myAction = new ActionHistory(); 152. myAction.InterviewID = deletedInterview.InterviewID; 153. myAction.PostingID = deletedInterview.PostingID; 154. myAction.ApplicantID = deletedInterview.ApplicantID; 155. myAction.Description = String.Format("Interview with {0} has been deleted by {1}", deletedInterview.ApplicantID.ToString(), "default user"); 156. myAction.TimeStamp = DateTime.Now; 157. eventAggregator.GetEvent<AddActionEvent>().Publish(myAction); 158. } 159. , null); 160. } 161. 162. #endregion 163. 164. #region Appointment Helpers :) 165. 166. public Interview AppointmentToEntity(InterviewAppointment ia) 167. { 168. Interview newInterview = new Interview(); 169. newInterview.Subject = ia.Subject; 170. newInterview.Body = ia.Body; 171. newInterview.Start = ia.Start; 172. newInterview.End = ia.End; 173. newInterview.ApplicantID = ia.ApplicantID; 174. newInterview.PostingID = ia.PostingID; 175. newInterview.InterviewID = ia.InterviewID; 176. 177. return newInterview; 178. } 179. 180. public InterviewAppointment EntityToAppointment(Interview ia) 181. { 182. InterviewAppointment newInterview = new InterviewAppointment(); 183. newInterview.Subject = ia.Subject; 184. newInterview.Body = ia.Body; 185. newInterview.Start = ia.Start; 186. newInterview.End = ia.End; 187. newInterview.ApplicantID = ia.ApplicantID; 188. newInterview.PostingID = ia.PostingID; 189. newInterview.InterviewID = ia.InterviewID; 190. 191. return newInterview; 192. } 193. 194. public void CopyAppointmentEdit(Interview entityInterview, InterviewAppointment appointmentInterview) 195. { 196. entityInterview.Subject = appointmentInterview.Subject; 197. entityInterview.Body = appointmentInterview.Body; 198. entityInterview.Start = appointmentInterview.Start; 199. entityInterview.End = appointmentInterview.End; 200. entityInterview.ApplicantID = appointmentInterview.ApplicantID; 201. entityInterview.PostingID = appointmentInterview.PostingID; 202. } 203. 204. #endregion 205.} One thing we're doing here which you won't see in any of the other ViewModels is creating a duplicate collection. I know this is something which will be fixed down the line for using RadScheduler, simplifying this process, but with WCF RIA changing as it does I wanted to ensure functionality would remain consistent as I continued development on this application. So, I do a little bit of duplication, but for the greater good. This all takes place starting on line 79, so for every entity that comes back we add it to the collection that is bound to RadScheduler. Otherwise, the DelegateCommands that you see correspond directly to the events they are named after. In each case, rather than sending over the full event arguments, I just send in the appointment in question (coming through as the object obj in all cases) so I can add (line 91), edit (line 119), and delete appointments (line 142) like normal. This just ensures they get updated back to my database. Also, the one bit of code you won't see is for the Appointment Creating (line 110) event- that is because in the command I've created I simply make the replacement I need to: 1.void element_AppointmentCreating(object sender, AppointmentCreatingEventArgs e) 2.{ 3. e.NewAppointment = new InterviewAppointment(); 4. base.ExecuteCommand(); 5.} And the ViewModel is none the wiser, the appointments just work as far as it is concerned since as they are created they become InterviewAppointments. End result? I've customized my EditAppointmentDialog as follows: And adding, editing, and deleting appointments works like a charm. I can even 'edit' by moving appointments around RadScheduler, so as they are dropped into a timeslot they perform their full edit routine and things get updated. And then, the Code-Behind Version Perhaps the thing I like the most about doing one then the other is I get to steal 90% or more of the code from the MVVM version. For example, the only real changes to the Code-Behind Xaml file exist in the control declaration, in which I use events instead of attached-behavior-event-commands: 01.<telerikScheduler:RadScheduler x:Name="xJobsScheduler" 02. Grid.Row="1" 03. Grid.Column="1" 04. Width="800" 05. MinWidth="600" 06. Height="500" 07. MinHeight="300" 08. EditAppointmentStyle="{StaticResource EditAppointmentStyle}" 09. AppointmentAdded="xJobsScheduler_AppointmentAdded" 10. AppointmentCreating="xJobsScheduler_AppointmentCreating" 11. AppointmentEdited="xJobsScheduler_AppointmentEdited" 12. AppointmentDeleted="xJobsScheduler_AppointmentDeleted"> 13.</telerikScheduler:RadScheduler> Easy, right? Otherwise, all the same styling in UserControl.Resources was re-used, right down to the DataContextProxy that lets us bind to a collection from our viewmodel (in this case, our code-behind) to use within the DataTemplate. The code conversion gets even easier, as I could literally copy and paste almost everything from the ViewModel to my Code-Behind, just a matter of pasting the right section into the right event. Here's the code-behind as proof: 001.public partial class SchedulingView : UserControl, INotifyPropertyChanged 002.{ 003. public RecruitingContext context; 004. 005. private QueryableCollectionView _jobsList; 006. public QueryableCollectionView JobsList 007. { 008. get { return this._jobsList; } 009. set 010. { 011. if (this._jobsList != value) 012. { 013. this._jobsList = value; 014. this.NotifyChanged("JobsList"); 015. } 016. } 017. } 018. 019. private QueryableCollectionView _applicantList; 020. public QueryableCollectionView ApplicantList 021. { 022. get { return _applicantList; } 023. set 024. { 025. if (_applicantList != value) 026. { 027. _applicantList = value; 028. NotifyChanged("ApplicantList"); 029. } 030. } 031. } 032. 033. private ObservableItemCollection<InterviewAppointment> _interviews = new ObservableItemCollection<InterviewAppointment>(); 034. public ObservableItemCollection<InterviewAppointment> Interviews 035. { 036. get { return _interviews; } 037. set 038. { 039. if (_interviews != value) 040. { 041. _interviews = value; 042. NotifyChanged("Interviews"); 043. } 044. } 045. } 046. 047. public SchedulingView() 048. { 049. InitializeComponent(); 050. 051. this.DataContext = this; 052. 053. this.Loaded += new RoutedEventHandler(SchedulingView_Loaded); 054. } 055. 056. void SchedulingView_Loaded(object sender, RoutedEventArgs e) 057. { 058. this.xJobsScheduler.AppointmentsSource = Interviews; 059. 060. context = new RecruitingContext(); 061. 062. LoadOperation loadop = context.Load(context.GetInterviewsQuery()); 063. loadop.Completed += new EventHandler(loadop_Completed); 064. 065. this._applicantList = new QueryableCollectionView(context.Applicants); 066. context.Load(context.GetApplicantsQuery()); 067. 068. this._jobsList = new QueryableCollectionView(context.JobPostings); 069. context.Load(context.GetJobPostingsQuery()); 070. } 071. 072. void loadop_Completed(object sender, EventArgs e) 073. { 074. LoadOperation loadop = sender as LoadOperation; 075. 076. _interviews.Clear(); 077. 078. foreach (var ent in loadop.Entities) 079. { 080. _interviews.Add(EntityToAppointment(ent as Interview)); 081. } 082. } 083. 084. private void xJobsScheduler_AppointmentAdded(object sender, Telerik.Windows.Controls.AppointmentAddedEventArgs e) 085. { 086. // now we have a new InterviewAppointment to add to our QCV :) 087. InterviewAppointment newInterview = e.Appointment as InterviewAppointment; 088. 089. this.context.Interviews.Add(AppointmentToEntity(newInterview)); 090. this.context.SubmitChanges((s) => 091. { 092. ActionHistory myAction = new ActionHistory(); 093. myAction.InterviewID = newInterview.InterviewID; 094. myAction.PostingID = newInterview.PostingID; 095. myAction.ApplicantID = newInterview.ApplicantID; 096. myAction.Description = String.Format("Interview with {0} has been created by {1}", newInterview.ApplicantID.ToString(), "default user"); 097. myAction.TimeStamp = DateTime.Now; 098. context.ActionHistories.Add(myAction); 099. context.SubmitChanges(); 100. } 101. , null); 102. } 103. 104. private void xJobsScheduler_AppointmentCreating(object sender, Telerik.Windows.Controls.AppointmentCreatingEventArgs e) 105. { 106. e.NewAppointment = new InterviewAppointment(); 107. } 108. 109. private void xJobsScheduler_AppointmentEdited(object sender, Telerik.Windows.Controls.AppointmentEditedEventArgs e) 110. { 111. Interview editedInterview = (from x in context.Interviews 112. where x.InterviewID == (e.Appointment as InterviewAppointment).InterviewID 113. select x).SingleOrDefault(); 114. 115. CopyAppointmentEdit(editedInterview, e.Appointment as InterviewAppointment); 116. 117. context.SubmitChanges((s) => 118. { 119. ActionHistory myAction = new ActionHistory(); 120. myAction.InterviewID = editedInterview.InterviewID; 121. myAction.PostingID = editedInterview.PostingID; 122. myAction.ApplicantID = editedInterview.ApplicantID; 123. myAction.Description = String.Format("Interview with {0} has been modified by {1}", editedInterview.ApplicantID.ToString(), "default user"); 124. myAction.TimeStamp = DateTime.Now; 125. context.ActionHistories.Add(myAction); 126. context.SubmitChanges(); 127. } 128. , null); 129. } 130. 131. private void xJobsScheduler_AppointmentDeleted(object sender, Telerik.Windows.Controls.AppointmentDeletedEventArgs e) 132. { 133. Interview deletedInterview = (from x in context.Interviews 134. where x.InterviewID == (e.Appointment as InterviewAppointment).InterviewID 135. select x).SingleOrDefault(); 136. 137. context.Interviews.Remove(deletedInterview); 138. context.SubmitChanges((s) => 139. { 140. ActionHistory myAction = new ActionHistory(); 141. myAction.InterviewID = deletedInterview.InterviewID; 142. myAction.PostingID = deletedInterview.PostingID; 143. myAction.ApplicantID = deletedInterview.ApplicantID; 144. myAction.Description = String.Format("Interview with {0} has been deleted by {1}", deletedInterview.ApplicantID.ToString(), "default user"); 145. myAction.TimeStamp = DateTime.Now; 146. context.ActionHistories.Add(myAction); 147. context.SubmitChanges(); 148. } 149. , null); 150. } 151. 152. #region Appointment Helpers :) 153. 154. public Interview AppointmentToEntity(InterviewAppointment ia) 155. { 156. Interview newInterview = new Interview(); 157. newInterview.Subject = ia.Subject; 158. newInterview.Body = ia.Body; 159. newInterview.Start = ia.Start; 160. newInterview.End = ia.End; 161. newInterview.ApplicantID = ia.ApplicantID; 162. newInterview.PostingID = ia.PostingID; 163. newInterview.InterviewID = ia.InterviewID; 164. 165. return newInterview; 166. } 167. 168. public InterviewAppointment EntityToAppointment(Interview ia) 169. { 170. InterviewAppointment newInterview = new InterviewAppointment(); 171. newInterview.Subject = ia.Subject; 172. newInterview.Body = ia.Body; 173. newInterview.Start = ia.Start; 174. newInterview.End = ia.End; 175. newInterview.ApplicantID = ia.ApplicantID; 176. newInterview.PostingID = ia.PostingID; 177. newInterview.InterviewID = ia.InterviewID; 178. 179. return newInterview; 180. } 181. 182. public void CopyAppointmentEdit(Interview entityInterview, InterviewAppointment appointmentInterview) 183. { 184. entityInterview.Subject = appointmentInterview.Subject; 185. entityInterview.Body = appointmentInterview.Body; 186. entityInterview.Start = appointmentInterview.Start; 187. entityInterview.End = appointmentInterview.End; 188. entityInterview.ApplicantID = appointmentInterview.ApplicantID; 189. entityInterview.PostingID = appointmentInterview.PostingID; 190. } 191. 192. #endregion 193. 194. #region INotifyPropertyChanged Members 195. 196. public event PropertyChangedEventHandler PropertyChanged; 197. 198. public void NotifyChanged(string propertyName) 199. { 200. if (string.IsNullOrEmpty(propertyName)) 201. throw new ArgumentException("propertyName"); 202. 203. PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); 204. } 205. 206. #endregion 207.} Nice... right? :) One really important thing to note as well. See on line 51 where I set the DataContext before the Loaded event? This is super important, as if you don't have this set before the usercontrol is loaded, the DataContextProxy has no context to use and your EditAppointmentDialog Job/Applicant dropdowns will be blank and empty. Trust me on this, took a little bit of debugging to figure out that by setting the DataContext post-loaded would only lead to disaster and frustration. Otherwise, the only other real difference is that instead of sending an ActionHistory item through an event to get added to the database and saved, I do those right in the callback from submitting. The Result Again, I only have to post one picture because these bad boys used nearly identical code for both the MVVM and the code-behind views, so our end result is... So what have we learned here today? One, for the most part this MVVM thing is somewhat easy. Yeah, you sometimes have to write a bunch of extra code, but with the help of a few useful snippits you can turn the process into a pretty streamlined little workflow. Heck, this story gets even easier as you can see in this blog post by Michael Washington- specifically run a find on 'InvokeCommandAction' and you'll see the section regarding the command on TreeView in Blend 4. Brilliant! MVVM never looked so sweet! Otherwise, it is business as usual with RadScheduler for Silverlight whichever path you're choosing for your development. Between now and the next post, I'll be cleaning up styles a bit (those RadComboBoxes are a little too close to my labels!) and adding some to the RowDetailsViews for Applicants and Jobs, so you can see all the info for an appointment in the dropdown tab view. Otherwise, we're about ready to call a wrap on this oneDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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AutoMapper is not working for a Container class

- by rboarman

Hello, I have an AutoMapper issue that has been driving me crazy for way too long now. A similar question was also posted on the AutoMapper user site but has not gotten much love. The summary is that I have a container class that holds a Dictionary of components. The components are a derived object of a common base class. I also have a parallel structure that I am using as DTO objects to which I want to map. The error that gets generated seems to say that the mapper cannot map between two of the classes that I have included in the CreateMap calls. I think the error has to do with the fact that I have a Dictionary of objects that are not part of the container‘s hierarchy. I apologize in advance for the length of the code below. My simple test cases work. Needless to say, it’s only the more complex case that is failing. Here are the classes: #region Dto objects public class ComponentContainerDTO { public Dictionary<string, ComponentDTO> Components { get; set; } public ComponentContainerDTO() { this.Components = new Dictionary<string, ComponentDTO>(); } } public class EntityDTO : ComponentContainerDTO { public int Id { get; set; } } public class ComponentDTO { public EntityDTO Owner { get; set; } public int Id { get; set; } public string Name { get; set; } public string ComponentType { get; set; } } public class HealthDTO : ComponentDTO { public decimal CurrentHealth { get; set; } } public class PhysicalLocationDTO : ComponentDTO { public Point2D Location { get; set; } } #endregion #region Domain objects public class ComponentContainer { public Dictionary<string, Component> Components { get; set; } public ComponentContainer() { this.Components = new Dictionary<string, Component>(); } } public class Entity : ComponentContainer { public int Id { get; set; } } public class Component { public Entity Owner { get; set; } public int Id { get; set; } public string Name { get; set; } public string ComponentType { get; set; } } public class Health : Component { public decimal CurrentHealth { get; set; } } public struct Point2D { public decimal X; public decimal Y; public Point2D(decimal x, decimal y) { X = x; Y = y; } } public class PhysicalLocation : Component { public Point2D Location { get; set; } } #endregion The code: var entity = new Entity() { Id = 1 }; var healthComponent = new Health() { CurrentHealth = 100, Owner = entity, Name = "Health", Id = 2 }; entity.Components.Add("1", healthComponent); var locationComponent = new PhysicalLocation() { Location = new Point2D() { X = 1, Y = 2 }, Owner = entity, Name = "PhysicalLocation", Id = 3 }; entity.Components.Add("2", locationComponent); Mapper.CreateMap<ComponentContainer, ComponentContainerDTO>() .Include<Entity, EntityDTO>(); Mapper.CreateMap<Entity, EntityDTO>(); Mapper.CreateMap<Component, ComponentDTO>() .Include<Health, HealthDTO>() .Include<PhysicalLocation, PhysicalLocationDTO>(); Mapper.CreateMap<Component, ComponentDTO>(); Mapper.CreateMap<Health, HealthDTO>(); Mapper.CreateMap<PhysicalLocation, PhysicalLocationDTO>(); Mapper.AssertConfigurationIsValid(); var targetEntity = Mapper.Map<Entity, EntityDTO>(entity); The error when I call Map() (abbreviated stack crawls): AutoMapper.AutoMapperMappingException was unhandled Message=Trying to map MapperTest1.Entity to MapperTest1.EntityDTO. Using mapping configuration for MapperTest1.Entity to MapperTest1.EntityDTO Exception of type 'AutoMapper.AutoMapperMappingException' was thrown. Source=AutoMapper StackTrace: at AutoMapper.MappingEngine.AutoMapper.IMappingEngineRunner.Map(ResolutionContext context) . . . InnerException: AutoMapper.AutoMapperMappingException Message=Trying to map System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[MapperTest1.Component, ElasticTest1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] to System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[MapperTest1.ComponentDTO, ElasticTest1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]. Using mapping configuration for MapperTest1.Entity to MapperTest1.EntityDTO Destination property: Components Exception of type 'AutoMapper.AutoMapperMappingException' was thrown. Source=AutoMapper StackTrace: at AutoMapper.Mappers.TypeMapObjectMapperRegistry.PropertyMapMappingStrategy.MapPropertyValue(ResolutionContext context, IMappingEngineRunner mapper, Object mappedObject, PropertyMap propertyMap) . . InnerException: AutoMapper.AutoMapperMappingException Message=Trying to map System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[MapperTest1.Component, ElasticTest1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] to System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[MapperTest1.ComponentDTO, ElasticTest1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]. Using mapping configuration for MapperTest1.Entity to MapperTest1.EntityDTO Destination property: Components Exception of type 'AutoMapper.AutoMapperMappingException' was thrown. Source=AutoMapper StackTrace: at AutoMapper.MappingEngine.AutoMapper.IMappingEngineRunner.Map(ResolutionContext context) . InnerException: AutoMapper.AutoMapperMappingException Message=Trying to map MapperTest1.Component to MapperTest1.ComponentDTO. Using mapping configuration for MapperTest1.Health to MapperTest1.HealthDTO Destination property: Components Exception of type 'AutoMapper.AutoMapperMappingException' was thrown. Source=AutoMapper StackTrace: at AutoMapper.MappingEngine.AutoMapper.IMappingEngineRunner.Map(ResolutionContext context) . . InnerException: AutoMapper.AutoMapperMappingException Message=Trying to map System.Decimal to System.Decimal. Using mapping configuration for MapperTest1.Health to MapperTest1.HealthDTO Destination property: CurrentHealth Exception of type 'AutoMapper.AutoMapperMappingException' was thrown. Source=AutoMapper StackTrace: at AutoMapper.Mappers.TypeMapObjectMapperRegistry.PropertyMapMappingStrategy.MapPropertyValue(ResolutionContext context, IMappingEngineRunner mapper, Object mappedObject, PropertyMap propertyMap) . . InnerException: System.InvalidCastException Message=Unable to cast object of type 'MapperTest1.ComponentDTO' to type 'MapperTest1.HealthDTO'. Source=Anonymously Hosted DynamicMethods Assembly StackTrace: at SetCurrentHealth(Object , Object ) . . Thank you in advance. Rick

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Silverlight 4 + WCF RIA - Data Service Design Best Practices

- by Chadd Nervig

Hey all. I realize this is a rather long question, but I'd really appreciate any help from anyone experienced with RIA services. Thanks! I'm working on a Silverlight 4 app that views data from the server. I'm relatively inexperienced with RIA Services, so have been working through the tasks of getting the data I need down to the client, but every new piece I add to the puzzle seems to be more and more problematic. I feel like I'm missing some basic concepts here, and it seems like I'm just 'hacking' pieces on, in time-consuming ways, each one breaking the previous ones as I try to add them. I'd love to get the feedback of developers experienced with RIA services, to figure out the intended way to do what I'm trying to do. Let me lay out what I'm trying to do: First, the data. The source of this data is a variety of sources, primarily created by a shared library which reads data from our database, and exposes it as POCOs (Plain Old CLR Objects). I'm creating my own POCOs to represent the different types of data I need to pass between server and client. DataA - This app is for viewing a certain type of data, lets call DataA, in near-realtime. Every 3 minutes, the client should pull data down from the server, of all the new DataA since the last time it requested data. DataB - Users can view the DataA objects in the app, and may select one of them from the list, which displays additional details about that DataA. I'm bringing these extra details down from the server as DataB. DataC - One of the things that DataB contains is a history of a couple important values over time. I'm calling each data point of this history a DataC object, and each DataB object contains many DataCs. The Data Model - On the server side, I have a single DomainService: [EnableClientAccess] public class MyDomainService : DomainService { public IEnumerable<DataA> GetDataA(DateTime? startDate) { /*Pieces together the DataAs that have been created since startDate, and returns them*/ } public DataB GetDataB(int dataAID) { /*Looks up the extended info for that dataAID, constructs a new DataB with that DataA's data, plus the extended info (with multiple DataCs in a List<DataC> property on the DataB), and returns it*/ } //Not exactly sure why these are here, but I think it //wouldn't compile without them for some reason? The data //is entirely read-only, so I don't need to update. public void UpdateDataA(DataA dataA) { throw new NotSupportedException(); } public void UpdateDataB(DataB dataB) { throw new NotSupportedException(); } } The classes for DataA/B/C look like this: [KnownType(typeof(DataB))] public partial class DataA { [Key] [DataMember] public int DataAID { get; set; } [DataMember] public decimal MyDecimalA { get; set; } [DataMember] public string MyStringA { get; set; } [DataMember] public DataTime MyDateTimeA { get; set; } } public partial class DataB : DataA { [Key] [DataMember] public int DataAID { get; set; } [DataMember] public decimal MyDecimalB { get; set; } [DataMember] public string MyStringB { get; set; } [Include] //I don't know which of these, if any, I need? [Composition] [Association("DataAToC","DataAID","DataAID")] public List<DataC> DataCs { get; set; } } public partial class DataC { [Key] [DataMember] public int DataAID { get; set; } [Key] [DataMember] public DateTime Timestamp { get; set; } [DataMember] public decimal MyHistoricDecimal { get; set; } } I guess a big question I have here is... Should I be using Entities instead of POCOs? Are my classes constructed correctly to be able to pass the data down correctly? Should I be using Invoke methods instead of Query (Get) methods on the DomainService? On the client side, I'm having a number of issues. Surprisingly, one of my biggest ones has been threading. I didn't expect there to be so many threading issues with MyDomainContext. What I've learned is that you only seem to be able to create MyDomainContextObjects on the UI thread, all of the queries you can make are done asynchronously only, and that if you try to fake doing it synchronously by blocking the calling thread until the LoadOperation finishes, you have to do so on a background thread, since it uses the UI thread to make the query. So here's what I've got so far. The app should display a stream of the DataA objects, spreading each 3min chunk of them over the next 3min (so they end up displayed 3min after the occurred, looking like a continuous stream, but only have to be downloaded in 3min bursts). To do this, the main form initializes, creates a private MyDomainContext, and starts up a background worker, which continuously loops in a while(true). On each loop, it checks if it has any DataAs left over to display. If so, it displays that Data, and Thread.Sleep()s until the next DataA is scheduled to be displayed. If it's out of data, it queries for more, using the following methods: public DataA[] GetDataAs(DateTime? startDate) { _loadOperationGetDataACompletion = new AutoResetEvent(false); LoadOperation<DataA> loadOperationGetDataA = null; loadOperationGetDataA = _context.Load(_context.GetDataAQuery(startDate), System.ServiceModel.DomainServices.Client.LoadBehavior.RefreshCurrent, false); loadOperationGetDataA.Completed += new EventHandler(loadOperationGetDataA_Completed); _loadOperationGetDataACompletion.WaitOne(); List<DataA> dataAs = new List<DataA>(); foreach (var dataA in loadOperationGetDataA.Entities) dataAs.Add(dataA); return dataAs.ToArray(); } private static AutoResetEvent _loadOperationGetDataACompletion; private static void loadOperationGetDataA_Completed(object sender, EventArgs e) { _loadOperationGetDataACompletion.Set(); } Seems kind of clunky trying to force it into being synchronous, but since this already is on a background thread, I think this is OK? So far, everything actually works, as much of a hack as it seems like it may be. It's important to note that if I try to run that code on the UI thread, it locks, because it waits on the WaitOne() forever, locking the thread, so it can't make the Load request to the server. So once the data is displayed, users can click on one as it goes by to fill a details pane with the full DataB data about that object. To do that, I have the the details pane user control subscribing to a selection event I have setup, which gets fired when the selection changes (on the UI thread). I use a similar technique there, to get the DataB object: void SelectionService_SelectedDataAChanged(object sender, EventArgs e) { DataA dataA = /*Get the selected DataA*/; MyDomainContext context = new MyDomainContext(); var loadOperationGetDataB = context.Load(context.GetDataBQuery(dataA.DataAID), System.ServiceModel.DomainServices.Client.LoadBehavior.RefreshCurrent, false); loadOperationGetDataB.Completed += new EventHandler(loadOperationGetDataB_Completed); } private void loadOperationGetDataB_Completed(object sender, EventArgs e) { this.DataContext = ((LoadOperation<DataB>)sender).Entities.SingleOrDefault(); } Again, it seems kinda hacky, but it works... except on the DataB that it loads, the DataCs list is empty. I've tried all kinds of things there, and I don't see what I'm doing wrong to allow the DataCs to come down with the DataB. I'm about ready to make a 3rd query for the DataCs, but that's screaming even more hackiness to me. It really feels like I'm fighting against the grain here, like I'm doing this in an entirely unintended way. If anyone could offer any assistance, and point out what I'm doing wrong here, I'd very much appreciate it! Thanks!

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Drupal: Exposing a module's data to Views2 using its API

- by Sepehr Lajevardi

I'm forking the filefield_stats module to provide it with the ability of exposing data into the Views module via the API. The filefield_stats module db table schema is as follow: <?php function filefield_stats_schema() { $schema['filefield_stats'] = array( 'fields' => array( 'fid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'Primary Key: the {files}.fid'), 'vid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'Primary Key: the {node}.vid'), 'uid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'The {users}.uid of the downloader'), 'timestamp' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'The timestamp of the download'), 'hostname' => array('type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => '', 'description' => 'The hostname downloading the file (usually IP)'), 'referer' => array('type' => 'text', 'not null' => FALSE, 'description' => 'Referer for the download'), ), 'indexes' => array('fid_vid' => array('fid', 'vid')), ); return $schema; } ?> Well, so I implemented the hook_views_api() in filefield_stats.module & added a filefield_stats.views.inc file in the module's root directory, here it is: <?php // $Id$ /** * @file * Provide the ability of exposing data to Views2, for filefield_stats module. */ function filefield_stats_views_data() { $data = array(); $data['filefield_stats']['table']['group'] = t('FilefieldStats'); // Referencing the {node_revisions} table. $data['filefield_stats']['table']['join'] = array( 'node_revisions' => array( 'left_field' => 'vid', 'field' => 'vid', ), /*'files' => array( 'left_field' => 'fid', 'field' => 'fid', ), 'users' => array( 'left_field' => 'uid', 'field' => 'uid', ),*/ ); // Introducing filefield_stats table fields to Views2. // vid: The node's revision ID which wrapped the downloaded file $data['filefield_stats']['vid'] = array( 'title' => t('Node revision ID'), 'help' => t('The node\'s revision ID which wrapped the downloaded file'), 'relationship' => array( 'base' => 'node_revisions', 'field' => 'vid', 'handler' => 'views_handler_relationship', 'label' => t('Node Revision Reference.'), ), ); // uid: The ID of the user who downloaded the file. $data['filefield_stats']['uid'] = array( 'title' => t('User ID'), 'help' => t('The ID of the user who downloaded the file.'), 'relationship' => array( 'base' => 'users', 'field' => 'uid', 'handler' => 'views_handler_relationship', 'label' => t('User Reference.'), ), ); // fid: The ID of the downloaded file. $data['filefield_stats']['fid'] = array( 'title' => t('File ID'), 'help' => t('The ID of the downloaded file.'), 'relationship' => array( 'base' => 'files', 'field' => 'fid', 'handler' => 'views_handler_relationship', 'label' => t('File Reference.'), ), ); // hostname: The hostname which the file has been downloaded from. $data['filefield_stats']['hostname'] = array( 'title' => t('The Hostname'), 'help' => t('The hostname which the file has been downloaded from.'), 'field' => array( 'handler' => 'views_handler_field', 'click sortable' => TRUE, ), 'sort' => array( 'handler' => 'views_handler_sort', ), 'filter' => array( 'handler' => 'views_handler_filter_string', ), 'argument' => array( 'handler' => 'views_handler_argument_string', ), ); // referer: The referer address which the file download link has been triggered from. $data['filefield_stats']['referer'] = array( 'title' => t('The Referer'), 'help' => t('The referer which the file download link has been triggered from.'), 'field' => array( 'handler' => 'views_handler_field', 'click sortable' => TRUE, ), 'sort' => array( 'handler' => 'views_handler_sort', ), 'filter' => array( 'handler' => 'views_handler_filter_string', ), 'argument' => array( 'handler' => 'views_handler_argument_string', ), ); // timestamp: The time of the download. $data['filefield_stats']['timestamp'] = array( 'title' => t('Download Time'), 'help' => t('The time of the download.'), 'field' => array( 'handler' => 'views_handler_field_date', 'click sortable' => TRUE, ), 'sort' => array( 'handler' => 'views_handler_sort_date', ), 'filter' => array( 'handler' => 'views_handler_filter_date', ), ); return $data; } // filefield_stats_views_data() ?> According to the Views2 documentations this should work as a minimum, I think. But it doesn't! Also there is no error of any kind, when I come through the views UI, there's nothing about filefield_stats data. Any idea?

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LNK2005: delete already defined error in VC++

- by user333422

Hi, I am newbie to VC++, so please forgive me if this is stupid. I have got 7 solutions under one project. Six of these build static libraries which is linked inside 7th to produce an exe. The runtime configuration of all the projects is MultiThreaded Debug. sln which is used to produce exe is using MFC other slns use standard runtiem library. I tried changing those to MFC, but still I am getting the same error. All the six slns build successfully. When I try to build exe - get the follwoing error: nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *,int,char const *,int)" (??3@YAXPAXHPBDH@Z) already defined in tara_common.lib(fileStream.obj) This is weird because tara_common is one of the libs that I generated and fileStream.cpp is file that is just using delete on a pointer. I built it in verbose mod, so I am attaching the output. ENVIRONMENT SPACE _ACP_ATLPROV=C:\Program Files\Microsoft Visual Studio 9.0\VC\Bin\ATLProv.dll _ACP_INCLUDE=C:\Program Files\Microsoft Visual Studio 9.0\VC\include;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\include;C:\Program Files\Microsoft SDKs\Windows\v6.0A\include;C:\Program Files\Microsoft SDKs\Windows\v6.0A\include _ACP_LIB=C:\fta\tara\database\build\Debug;C:\Program Files\Microsoft Visual Studio 9.0\VC\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib\i386;C:\Program Files\Microsoft SDKs\Windows\v6.0A\lib;C:\Program Files\Microsoft SDKs\Windows\v6.0A\lib;C:\Program Files\Microsoft Visual Studio 9.0\;C:\Program Files\Microsoft Visual Studio 9.0\lib _ACP_PATH=C:\Program Files\Microsoft Visual Studio 9.0\VC\bin;C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin;C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools\bin;C:\Program Files\Microsoft Visual Studio 9.0\Common7\tools;C:\Program Files\Microsoft Visual Studio 9.0\Common7\ide;C:\Program Files\HTML Help Workshop;C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin;c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 9.0\;C:\WINDOWS\SysWow64;;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Microsoft Visual Studio 9.0\VC\bin;C:\Program Files\GnuWin32\bin;C:\Python26 ALLUSERSPROFILE=C:\Documents and Settings\All Users CLIENTNAME=Console CommonProgramFiles=C:\Program Files\Common Files ComSpec=C:\WINDOWS\system32\cmd.exe FP_NO_HOST_CHECK=NO HOMEDRIVE=C: INCLUDE=C:\Program Files\Microsoft Visual Studio 9.0\VC\include;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\include;C:\Program Files\Microsoft SDKs\Windows\v6.0A\include;C:\Program Files\Microsoft SDKs\Windows\v6.0A\include LIB=C:\fta\tara\database\build\Debug;C:\Program Files\Microsoft Visual Studio 9.0\VC\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib\i386;C:\Program Files\Microsoft SDKs\Windows\v6.0A\lib;C:\Program Files\Microsoft SDKs\Windows\v6.0A\lib;C:\Program Files\Microsoft Visual Studio 9.0\;C:\Program Files\Microsoft Visual Studio 9.0\lib LIBPATH=c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\lib LOGONSERVER=\xxx NUMBER_OF_PROCESSORS=1 OS=Windows_NT PATH=C:\Program Files\Microsoft Visual Studio 9.0\VC\bin;C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin;C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools\bin;C:\Program Files\Microsoft Visual Studio 9.0\Common7\tools;C:\Program Files\Microsoft Visual Studio 9.0\Common7\ide;C:\Program Files\HTML Help Workshop;C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin;c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 9.0\;C:\WINDOWS\SysWow64;;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Microsoft Visual Studio 9.0\VC\bin;C:\Program Files\GnuWin32\bin;C:\Python26 PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH PROCESSOR_ARCHITECTURE=x86 PROCESSOR_IDENTIFIER=x86 Family 6 Model 23 Stepping 10, GenuineIntel PROCESSOR_LEVEL=6 PROCESSOR_REVISION=170a ProgramFiles=C:\Program Files SESSIONNAME=Console SystemDrive=C: SystemRoot=C:\WINDOWS VisualStudioDir=C:\Documents and Settings\sgupta\My Documents\Visual Studio 2008 VS90COMNTOOLS=C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools\ WecVersionForRosebud.710=2 windir=C:\WINDOWS COMMAND LINES: Creating temporary file "c:\fta\tools\channel_editor\IvoDB\Debug\RSP00011018082288.rsp" with contents [ /VERBOSE /OUT:"C:\fta\tools\channel_editor\Builds\IvoDB_1_35_Debug.exe" /INCREMENTAL /LIBPATH:"......\3rdparty\boost_1_42_0\stage\lib" /MANIFEST /MANIFESTFILE:"Debug\IvoDB_1_35_Debug.exe.intermediate.manifest" /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /DELAYLOAD:"OleAcc.dll" /DEBUG /PDB:"C:\fta\tools\channel_editor\Builds\IvoDB_1_35_Debug.pdb" /SUBSYSTEM:WINDOWS /DYNAMICBASE /NXCOMPAT /MACHINE:X86 ......\tara\database\build\Debug\tara_database.lib ......\tara\common\build\Debug\tara_common.lib ......\3rdparty\sqliteWrapper\Debug\sqliteWrapper.lib ......\3rdparty\sqlite_3_6_18\Debug\sqlite.lib ......\stsdk\modules\win32\Debug\modules.lib ......\stsdk\axeapi\win32\Debug\axeapi.lib DelayImp.lib ".\Debug\AntennaSettings.obj" ".\Debug\AudioVideoSettings.obj" ".\Debug\CMDatabase.obj" ".\Debug\CMSettings.obj" ".\Debug\ColorFileDialog.obj" ".\Debug\ColorStatic.obj" ".\Debug\DragDropListCtrl.obj" ".\Debug\DragDropTreeCtrl.obj" ".\Debug\FavouriteEdit.obj" ".\Debug\FavTab.obj" ".\Debug\FindProgram.obj" ".\Debug\HyperLink.obj" ".\Debug\IvoDB.obj" ".\Debug\IvoDBDlg.obj" ".\Debug\IvoDBInfo.obj" ".\Debug\IvoDBInfoTab.obj" ".\Debug\IvoDbStruct.obj" ".\Debug\LayoutHelper.obj" ".\Debug\MainTab.obj" ".\Debug\OperTabCtrl.obj" ".\Debug\ParentalLock.obj" ".\Debug\ProgramEdit.obj" ".\Debug\ProgramTab.obj" ".\Debug\PVRSettings.obj" ".\Debug\SatTab.obj" ".\Debug\SettingsBase.obj" ".\Debug\SettingsTab.obj" ".\Debug\STBSettings.obj" ".\Debug\stdafx.obj" ".\Debug\TimeDate.obj" ".\Debug\TransponderEdit.obj" ".\Debug\TreeTab.obj" ".\Debug\UserPreferences.obj" ".\Debug\Xmodem.obj" ".\Debug\IvoDB.res" ".\Debug\IvoDB_1_35_Debug.exe.embed.manifest.res" ] Creating command line "link.exe @c:\fta\tools\channel_editor\IvoDB\Debug\RSP00011018082288.rsp /NOLOGO /ERRORREPORT:PROMPT" **Processed /DEFAULTLIB:atlsd.lib Processed /DEFAULTLIB:ws2_32.lib Processed /DEFAULTLIB:mswsock.lib Processed /DISALLOWLIB:mfc90d.lib Processed /DISALLOWLIB:mfcs90d.lib Processed /DISALLOWLIB:mfc90.lib Processed /DISALLOWLIB:mfcs90.lib Processed /DISALLOWLIB:mfc90ud.lib Processed /DISALLOWLIB:mfcs90ud.lib Processed /DISALLOWLIB:mfc90u.lib Processed /DISALLOWLIB:mfcs90u.lib Processed /DISALLOWLIB:uafxcwd.lib Processed /DISALLOWLIB:uafxcw.lib Processed /DISALLOWLIB:nafxcw.lib Found "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) Referenced in axeapi.lib(ipcgeneric.obj) Referenced in axeapi.lib(ipccommon.obj) Referenced in axeapi.lib(activeobject.obj) Referenced in nafxcwd.lib(nolib.obj) Referenced in sqliteWrapper.lib(DbConnection.obj) Referenced in sqliteWrapper.lib(Statement.obj) Referenced in axeapi.lib(nvstorage.obj) Referenced in axeapi.lib(avctrler.obj) Referenced in tara_common.lib(trace.obj) Referenced in tara_common.lib(ssPrintf.obj) Referenced in tara_common.lib(taraConfig.obj) Referenced in tara_common.lib(stream.obj) Referenced in tara_common.lib(STBConfigurationStorage.obj) Referenced in tara_common.lib(STBConfiguration.obj) Referenced in tara_common.lib(configParser.obj) Referenced in tara_common.lib(fileStream.obj) Referenced in tara_database.lib(SatStream.obj) Referenced in tara_database.lib(Service.obj) Referenced in tara_database.lib(ServiceList.obj) Referenced in tara_common.lib(playerConfig.obj) Referenced in UserPreferences.obj Referenced in Xmodem.obj Referenced in tara_database.lib(init.obj) Referenced in tara_database.lib(Satellite.obj) Referenced in TransponderEdit.obj Referenced in TreeTab.obj Referenced in TreeTab.obj Referenced in UserPreferences.obj Referenced in stdafx.obj Referenced in TimeDate.obj Referenced in TimeDate.obj Referenced in TransponderEdit.obj Referenced in SettingsTab.obj Referenced in SettingsTab.obj Referenced in STBSettings.obj Referenced in STBSettings.obj Referenced in SatTab.obj Referenced in SatTab.obj Referenced in SettingsBase.obj Referenced in SettingsBase.obj Referenced in ProgramTab.obj Referenced in ProgramTab.obj Referenced in PVRSettings.obj Referenced in PVRSettings.obj Referenced in ParentalLock.obj Referenced in ParentalLock.obj Referenced in ProgramEdit.obj Referenced in ProgramEdit.obj Referenced in MainTab.obj Referenced in MainTab.obj Referenced in OperTabCtrl.obj Referenced in OperTabCtrl.obj Referenced in IvoDBInfoTab.obj Referenced in IvoDbStruct.obj Referenced in LayoutHelper.obj Referenced in LayoutHelper.obj Referenced in IvoDBDlg.obj Referenced in IvoDBInfo.obj Referenced in IvoDBInfo.obj Referenced in IvoDBInfoTab.obj Referenced in HyperLink.obj Referenced in IvoDB.obj Referenced in IvoDB.obj Referenced in IvoDBDlg.obj Referenced in FavTab.obj Referenced in FavTab.obj Referenced in FindProgram.obj Referenced in FindProgram.obj Referenced in DragDropTreeCtrl.obj Referenced in DragDropTreeCtrl.obj Referenced in FavouriteEdit.obj Referenced in FavouriteEdit.obj Referenced in ColorFileDialog.obj Referenced in ColorStatic.obj Referenced in DragDropListCtrl.obj Referenced in DragDropListCtrl.obj Referenced in CMDatabase.obj Referenced in CMDatabase.obj Referenced in CMSettings.obj Referenced in CMSettings.obj Referenced in AntennaSettings.obj Referenced in AntennaSettings.obj Referenced in AudioVideoSettings.obj Referenced in AudioVideoSettings.obj Loaded nafxcwd.lib(afxmem.obj) nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *,int,char const *,int)" (??3@YAXPAXHPBDH@Z) already defined in tara_common.lib(fileStream.obj)** Please help me out, I have already wasted 3 days looking on net and trying all the possible solutions I found. thanks in advance, SG

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Spring security - Reach users ID without passing it through every controller

- by nilsi

I have a design issue that I don't know how to solve. I'm using Spring 3.2.4 and Spring security 3.1.4. I have a Account table in my database that looks like this: create table Account (id identity, username varchar unique, password varchar not null, firstName varchar not null, lastName varchar not null, university varchar not null, primary key (id)); Until recently my username was just only a username but I changed it to be the email address instead since many users want to login with that instead. I have a header that I include on all my pages which got a link to the users profile like this: <a href="/project/users/<%= request.getUserPrincipal().getName()%>" class="navbar-link"><strong><%= request.getUserPrincipal().getName()%></strong></a> The problem is that <%= request.getUserPrincipal().getName()%> returns the email now, I don't want to link the user's with thier emails. Instead I want to use the id every user have to link to the profile. How do I reach the users id's from every page? I have been thinking of two solutions but I'm not sure: Change the principal to contain the id as well, don't know how to do this and having problem finding good information on the topic. Add a model attribute to all my controllers that contain the whole user but this would be really ugly, like this. Account account = entityManager.find(Account.class, email); model.addAttribute("account", account); There are more way's as well and I have no clue which one is to prefer. I hope it's clear enough and thank you for any help on this. ====== Edit according to answer ======= I edited Account to implement UserDetails, it now looks like this (will fix the auto generated stuff later): @Entity @Table(name="Account") public class Account implements UserDetails { @Id private int id; private String username; private String password; private String firstName; private String lastName; @ManyToOne private University university; public Account() { } public Account(String username, String password, String firstName, String lastName, University university) { this.username = username; this.password = password; this.firstName = firstName; this.lastName = lastName; this.university = university; } public String getUsername() { return username; } public String getPassword() { return password; } public String getFirstName() { return firstName; } public String getLastName() { return lastName; } public void setUsername(String username) { this.username = username; } public void setPassword(String password) { this.password = password; } public void setFirstName(String firstName) { this.firstName = firstName; } public void setLastName(String lastName) { this.lastName = lastName; } public University getUniversity() { return university; } public void setUniversity(University university) { this.university = university; } public int getId() { return id; } public void setId(int id) { this.id = id; } @Override public Collection<? extends GrantedAuthority> getAuthorities() { // TODO Auto-generated method stub return null; } @Override public boolean isAccountNonExpired() { // TODO Auto-generated method stub return false; } @Override public boolean isAccountNonLocked() { // TODO Auto-generated method stub return false; } @Override public boolean isCredentialsNonExpired() { // TODO Auto-generated method stub return false; } @Override public boolean isEnabled() { // TODO Auto-generated method stub return true; } } I also added <%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %> To my jsp files and trying to reach the id by <sec:authentication property="principal.id" /> This gives me the following org.springframework.beans.NotReadablePropertyException: Invalid property 'principal.id' of bean class [org.springframework.security.authentication.UsernamePasswordAuthenticationToken]: Bean property 'principal.id' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter? ====== Edit 2 according to answer ======= I based my application on spring social samples and I never had to change anything until now. This are the files I think are relevant, please tell me if theres something you need to see besides this. AccountRepository.java public interface AccountRepository { void createAccount(Account account) throws UsernameAlreadyInUseException; Account findAccountByUsername(String username); } JdbcAccountRepository.java @Repository public class JdbcAccountRepository implements AccountRepository { private final JdbcTemplate jdbcTemplate; private final PasswordEncoder passwordEncoder; @Inject public JdbcAccountRepository(JdbcTemplate jdbcTemplate, PasswordEncoder passwordEncoder) { this.jdbcTemplate = jdbcTemplate; this.passwordEncoder = passwordEncoder; } @Transactional public void createAccount(Account user) throws UsernameAlreadyInUseException { try { jdbcTemplate.update( "insert into Account (firstName, lastName, username, university, password) values (?, ?, ?, ?, ?)", user.getFirstName(), user.getLastName(), user.getUsername(), user.getUniversity(), passwordEncoder.encode(user.getPassword())); } catch (DuplicateKeyException e) { throw new UsernameAlreadyInUseException(user.getUsername()); } } public Account findAccountByUsername(String username) { return jdbcTemplate.queryForObject("select username, firstName, lastName, university from Account where username = ?", new RowMapper<Account>() { public Account mapRow(ResultSet rs, int rowNum) throws SQLException { return new Account(rs.getString("username"), null, rs.getString("firstName"), rs.getString("lastName"), new University("test")); } }, username); } } security.xml <?xml version="1.0" encoding="UTF-8"?> <beans:beans xmlns="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd"> <http pattern="/resources/**" security="none" /> <http pattern="/project/" security="none" /> <http use-expressions="true">  <form-login login-page="/signin" login-processing-url="/signin/authenticate" authentication-failure-url="/signin?error=bad_credentials" /> <logout logout-url="/signout" delete-cookies="JSESSIONID" /> <intercept-url pattern="/addcourse" access="isAuthenticated()" /> <intercept-url pattern="/courses/**/**/edit" access="isAuthenticated()" /> <intercept-url pattern="/users/**/edit" access="isAuthenticated()" /> </http> <authentication-manager alias="authenticationManager"> <authentication-provider> <password-encoder ref="passwordEncoder" /> <jdbc-user-service data-source-ref="dataSource" users-by-username-query="select username, password, true from Account where username = ?" authorities-by-username-query="select username, 'ROLE_USER' from Account where username = ?"/> </authentication-provider> <authentication-provider> <user-service> <user name="admin" password="admin" authorities="ROLE_USER, ROLE_ADMIN" /> </user-service> </authentication-provider> </authentication-manager> </beans:beans> And this is my try of implementing a UserDetailsService public class RepositoryUserDetailsService implements UserDetailsService { private final AccountRepository accountRepository; @Autowired public RepositoryUserDetailsService(AccountRepository repository) { this.accountRepository = repository; } @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { Account user = accountRepository.findAccountByUsername(username); if (user == null) { throw new UsernameNotFoundException("No user found with username: " + username); } return user; } } Still gives me the same error, do I need to add the UserDetailsService somewhere? This is starting to be something else compared to my initial question, I should maybe start another question. Sorry for my lack of experience in this. I have to read up.

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Java: If vs. Switch

- by _ande_turner_

I have a piece of code with a) which I replaced with b) purely for legibility ... a) if ( WORD[ INDEX ] == 'A' ) branch = BRANCH.A; /* B through to Y */ if ( WORD[ INDEX ] == 'Z' ) branch = BRANCH.Z; b) switch ( WORD[ INDEX ] ) { case 'A' : branch = BRANCH.A; break; /* B through to Y */ case 'Z' : branch = BRANCH.Z; break; } ... will the switch version cascade through all the permutations or jump to a case ? EDIT: Some of the answers below regard alternative approaches to the approach above. I have included the following to provide context for its use. The reason I asked, the Question above, was because the speed of adding words empirically improved. This isn't production code by any means, and was hacked together quickly as a PoC. The following seems to be a confirmation of failure for a thought experiment. I may need a much bigger corpus of words than the one I am currently using though. The failure arises from the fact I did not account for the null references still requiring memory. ( doh ! ) public class Dictionary { private static Dictionary ROOT; private boolean terminus; private Dictionary A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z; private static Dictionary instantiate( final Dictionary DICTIONARY ) { return ( DICTIONARY == null ) ? new Dictionary() : DICTIONARY; } private Dictionary() { this.terminus = false; this.A = this.B = this.C = this.D = this.E = this.F = this.G = this.H = this.I = this.J = this.K = this.L = this.M = this.N = this.O = this.P = this.Q = this.R = this.S = this.T = this.U = this.V = this.W = this.X = this.Y = this.Z = null; } public static void add( final String...STRINGS ) { Dictionary.ROOT = Dictionary.instantiate( Dictionary.ROOT ); for ( final String STRING : STRINGS ) Dictionary.add( STRING.toUpperCase().toCharArray(), Dictionary.ROOT , 0, STRING.length() - 1 ); } private static void add( final char[] WORD, final Dictionary BRANCH, final int INDEX, final int INDEX_LIMIT ) { Dictionary branch = null; switch ( WORD[ INDEX ] ) { case 'A' : branch = BRANCH.A = Dictionary.instantiate( BRANCH.A ); break; case 'B' : branch = BRANCH.B = Dictionary.instantiate( BRANCH.B ); break; case 'C' : branch = BRANCH.C = Dictionary.instantiate( BRANCH.C ); break; case 'D' : branch = BRANCH.D = Dictionary.instantiate( BRANCH.D ); break; case 'E' : branch = BRANCH.E = Dictionary.instantiate( BRANCH.E ); break; case 'F' : branch = BRANCH.F = Dictionary.instantiate( BRANCH.F ); break; case 'G' : branch = BRANCH.G = Dictionary.instantiate( BRANCH.G ); break; case 'H' : branch = BRANCH.H = Dictionary.instantiate( BRANCH.H ); break; case 'I' : branch = BRANCH.I = Dictionary.instantiate( BRANCH.I ); break; case 'J' : branch = BRANCH.J = Dictionary.instantiate( BRANCH.J ); break; case 'K' : branch = BRANCH.K = Dictionary.instantiate( BRANCH.K ); break; case 'L' : branch = BRANCH.L = Dictionary.instantiate( BRANCH.L ); break; case 'M' : branch = BRANCH.M = Dictionary.instantiate( BRANCH.M ); break; case 'N' : branch = BRANCH.N = Dictionary.instantiate( BRANCH.N ); break; case 'O' : branch = BRANCH.O = Dictionary.instantiate( BRANCH.O ); break; case 'P' : branch = BRANCH.P = Dictionary.instantiate( BRANCH.P ); break; case 'Q' : branch = BRANCH.Q = Dictionary.instantiate( BRANCH.Q ); break; case 'R' : branch = BRANCH.R = Dictionary.instantiate( BRANCH.R ); break; case 'S' : branch = BRANCH.S = Dictionary.instantiate( BRANCH.S ); break; case 'T' : branch = BRANCH.T = Dictionary.instantiate( BRANCH.T ); break; case 'U' : branch = BRANCH.U = Dictionary.instantiate( BRANCH.U ); break; case 'V' : branch = BRANCH.V = Dictionary.instantiate( BRANCH.V ); break; case 'W' : branch = BRANCH.W = Dictionary.instantiate( BRANCH.W ); break; case 'X' : branch = BRANCH.X = Dictionary.instantiate( BRANCH.X ); break; case 'Y' : branch = BRANCH.Y = Dictionary.instantiate( BRANCH.Y ); break; case 'Z' : branch = BRANCH.Z = Dictionary.instantiate( BRANCH.Z ); break; } if ( INDEX == INDEX_LIMIT ) branch.terminus = true; else Dictionary.add( WORD, branch, INDEX + 1, INDEX_LIMIT ); } public static boolean is( final String STRING ) { Dictionary.ROOT = Dictionary.instantiate( Dictionary.ROOT ); return Dictionary.is( STRING.toUpperCase().toCharArray(), Dictionary.ROOT, 0, STRING.length() - 1 ); } private static boolean is( final char[] WORD, final Dictionary BRANCH, final int INDEX, final int INDEX_LIMIT ) { Dictionary branch = null; switch ( WORD[ INDEX ] ) { case 'A' : branch = BRANCH.A; break; case 'B' : branch = BRANCH.B; break; case 'C' : branch = BRANCH.C; break; case 'D' : branch = BRANCH.D; break; case 'E' : branch = BRANCH.E; break; case 'F' : branch = BRANCH.F; break; case 'G' : branch = BRANCH.G; break; case 'H' : branch = BRANCH.H; break; case 'I' : branch = BRANCH.I; break; case 'J' : branch = BRANCH.J; break; case 'K' : branch = BRANCH.K; break; case 'L' : branch = BRANCH.L; break; case 'M' : branch = BRANCH.M; break; case 'N' : branch = BRANCH.N; break; case 'O' : branch = BRANCH.O; break; case 'P' : branch = BRANCH.P; break; case 'Q' : branch = BRANCH.Q; break; case 'R' : branch = BRANCH.R; break; case 'S' : branch = BRANCH.S; break; case 'T' : branch = BRANCH.T; break; case 'U' : branch = BRANCH.U; break; case 'V' : branch = BRANCH.V; break; case 'W' : branch = BRANCH.W; break; case 'X' : branch = BRANCH.X; break; case 'Y' : branch = BRANCH.Y; break; case 'Z' : branch = BRANCH.Z; break; } if ( branch == null ) return false; if ( INDEX == INDEX_LIMIT ) return branch.terminus; else return Dictionary.is( WORD, branch, INDEX + 1, INDEX_LIMIT ); } }

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selectOneMenu - java.lang.NullPointerException when adding record to the database (JSF2 and JPA2-OpenJPA)

- by rogie

Good day to all; I'm developing a program using JSF2 and JPA2 (OpenJPA). Im also using IBM Rapid App Dev't v8 with WebSphere App Server v8 test server. I have two simple entities, Employee and Department. Each Department has many Employees and each Employee belongs to a Department (using deptno and workdept). My problem occurs when i tried to add a new employee and selecting a department from a combo box (using selectOneMenu - populated from Department table): when i run the program, the following error messages appeared: An Error Occurred: java.lang.NullPointerException Caused by: java.lang.NullPointerException - java.lang.NullPointerException I also tried to make another program using Deptno and Workdept as String instead of integer, still doesn't work. Pls help. Im also a newbie. Tnx and God bless. Below are my codes, configurations and setup. Just tell me if there are some codes that I forgot to include. Im also using Derby v10.5 as my database: CREATE SCHEMA RTS; CREATE TABLE RTS.DEPARTMENT (DEPTNO INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), DEPTNAME VARCHAR(30)); ALTER TABLE RTS.DEPARTMENT ADD CONSTRAINT PK_DEPARTMNET PRIMARY KEY (DEPTNO); CREATE TABLE RTS.EMPLOYEE (EMPNO INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), NAME VARCHAR(50), WORKDEPT INTEGER); ALTER TABLE RTS.EMPLOYEE ADD CONSTRAINT PK_EMPLOYEE PRIMARY KEY (EMPNO); Employee and Department Entities package rts.entities; import java.io.Serializable; import javax.persistence.*; @Entity public class Employee implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private int empno; private String name; //bi-directional many-to-one association to Department @ManyToOne @JoinColumn(name="WORKDEPT") private Department department; ....... getter and setter methods package rts.entities; import java.io.Serializable; import javax.persistence.*; import java.util.List; @Entity public class Department implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private int deptno; private String deptname; //bi-directional many-to-one association to Employee @OneToMany(mappedBy="department") private List<Employee> employees; ....... getter and setter methods JSF 2 snipet using combo box (populated from Department table) <tr> <td align="left">Department</td> <td style="width: 5px"> </td> <td><h:selectOneMenu styleClass="selectOneMenu" id="department1" value="#{pc_EmployeeAdd.employee.department}"> <f:selectItems value="#{DepartmentManager.departmentSelectList}" id="selectItems1"></f:selectItems> </h:selectOneMenu></td> </tr> package rts.entities.controller; import com.ibm.jpa.web.JPAManager; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import com.ibm.jpa.web.NamedQueryTarget; import com.ibm.jpa.web.Action; import javax.persistence.PersistenceUnit; import javax.annotation.Resource; import javax.transaction.UserTransaction; import rts.entities.Department; import java.util.List; import javax.persistence.Query; import java.util.ArrayList; import java.text.MessageFormat; import javax.faces.model.SelectItem; @SuppressWarnings("unchecked") @JPAManager(targetEntity = rts.entities.Department.class) public class DepartmentManager { ....... public List<SelectItem> getDepartmentSelectList() { List<Department> departmentList = getDepartment(); List<SelectItem> selectList = new ArrayList<SelectItem>(); MessageFormat mf = new MessageFormat("{0}"); for (Department department : departmentList) { selectList.add(new SelectItem(department, mf.format( new Object[] { department.getDeptname() }, new StringBuffer(), null).toString())); } return selectList; } Converter: package rts.entities.converter; import javax.faces.component.UIComponent; import javax.faces.context.FacesContext; import javax.faces.convert.Converter; import rts.entities.Department; import rts.entities.controller.DepartmentManager; import com.ibm.jpa.web.TypeCoercionUtility; public class DepartmentConverter implements Converter { public Object getAsObject(FacesContext facesContext, UIComponent arg1, String entityId) { DepartmentManager departmentManager = (DepartmentManager) facesContext .getApplication().createValueBinding("#{DepartmentManager}") .getValue(facesContext); int deptno = (Integer) TypeCoercionUtility.coerceType("int", entityId); Department result = departmentManager.findDepartmentByDeptno(deptno); return result; } public String getAsString(FacesContext arg0, UIComponent arg1, Object object) { if (object instanceof Department) { return "" + ((Department) object).getDeptno(); } else { throw new IllegalArgumentException("Invalid object type:" + object.getClass().getName()); } } } Method for Add button: public String createEmployeeAction() { EmployeeManager employeeManager = (EmployeeManager) getManagedBean("EmployeeManager"); try { employeeManager.createEmployee(employee); } catch (Exception e) { logException(e); } return ""; } faces-conf.xml <converter> <converter-for-class>rts.entities.Department</converter-for-class> <converter-class>rts.entities.converter.DepartmentConverter</converter-class> </converter> Stack trace javax.faces.FacesException: java.lang.NullPointerException at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.wrap(ExceptionHandlerImpl.java:241) at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.handle(ExceptionHandlerImpl.java:156) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:258) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1147) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:722) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:449) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1020) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:87) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:886) at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1655) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:276) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1650) Caused by: java.lang.NullPointerException at rts.entities.converter.DepartmentConverter.getAsString(DepartmentConverter.java:29) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getConvertedStringValue(RendererUtils.java:656) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.getSubmittedOrSelectedValuesAsSet(HtmlRendererUtils.java:444) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.internalRenderSelect(HtmlRendererUtils.java:421) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererUtils.java:359) at org.apache.myfaces.shared_impl.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRendererBase.java:76) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:519) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:626) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:622) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:622) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:622) at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1320) at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:263) at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:85) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239) ... 24 more

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Java, server client TCP communication ends with RST

- by Senne

I'm trying to figure out if this is normal. Because without errors, a connection should be terminated by: FIN -> <- ACK <- FIN ACK -> I get this at the end of a TCP connection (over SSL, but i also get it with non-encrypted): From To 1494 server client TCP search-agent > 59185 [PSH, ACK] Seq=25974 Ack=49460 Win=63784 Len=50 1495 client server TCP 59185 > search-agent [ACK] Seq=49460 Ack=26024 Win=63565 Len=0 1496 client server TCP 59185 > search-agent [PSH, ACK] Seq=49460 Ack=26024 Win=63565 Len=23 1497 client server TCP 59185 > search-agent [FIN, ACK] Seq=49483 Ack=26024 Win=63565 Len=0 1498 server client TCP search-agent > 59185 [PSH, ACK] Seq=26024 Ack=49484 Win=63784 Len=23 1499 client server TCP 59185 > search-agent [RST, ACK] Seq=49484 Ack=26047 Win=0 Len=0 The client exits normally and reaches socket.close, shouldn't then the connection be shut down normally, without a reset? I can't find anything about the TCP streams of java on google... Here is my code: Server: package Security; import java.io.*; import java.net.*; import javax.net.ServerSocketFactory; import javax.net.ssl.*; import java.util.*; public class SSLDemoServer { private static ServerSocket serverSocket; private static final int PORT = 1234; public static void main(String[] args) throws IOException { int received = 0; String returned; ObjectInputStream input = null; PrintWriter output = null; Socket client; System.setProperty("javax.net.ssl.keyStore", "key.keystore"); System.setProperty("javax.net.ssl.keyStorePassword", "vwpolo"); System.setProperty("javax.net.ssl.trustStore", "key.keystore"); System.setProperty("javax.net.ssl.trustStorePassword", "vwpolo"); try { System.out.println("Trying to set up server ..."); ServerSocketFactory factory = SSLServerSocketFactory.getDefault(); serverSocket = factory.createServerSocket(PORT); System.out.println("Server started!\n"); } catch (IOException ioEx) { System.out.println("Unable to set up port!"); ioEx.printStackTrace(); System.exit(1); } while(true) { client = serverSocket.accept(); System.out.println("Client trying to connect..."); try { System.out.println("Trying to create inputstream..."); input = new ObjectInputStream(client.getInputStream()); System.out.println("Trying to create outputstream..."); output = new PrintWriter(client.getOutputStream(), true); System.out.println("Client successfully connected!"); while( true ) { received = input.readInt(); returned = Integer.toHexString(received); System.out.print(" " + received); output.println(returned.toUpperCase()); } } catch(SSLException sslEx) { System.out.println("Connection failed! (non-SSL connection?)\n"); client.close(); continue; } catch(EOFException eofEx) { System.out.println("\nEnd of client data.\n"); } catch(IOException ioEx) { System.out.println("I/O problem! (correct inputstream?)"); } try { input.close(); output.close(); } catch (Exception e) { } client.close(); System.out.println("Client closed.\n"); } } } Client: package Security; import java.io.*; import java.net.*; import javax.net.ssl.*; import java.util.*; public class SSLDemoClient { private static InetAddress host; private static final int PORT = 1234; public static void main(String[] args) { System.setProperty("javax.net.ssl.keyStore", "key.keystore"); System.setProperty("javax.net.ssl.keyStorePassword", "vwpolo"); System.setProperty("javax.net.ssl.trustStore", "key.keystore"); System.setProperty("javax.net.ssl.trustStorePassword", "vwpolo"); System.out.println("\nCreating SSL socket ..."); SSLSocket socket = null; try { host = InetAddress.getByName("192.168.56.101"); SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault(); socket = (SSLSocket) factory.createSocket(host, PORT); socket.startHandshake(); } catch(UnknownHostException uhEx) { System.out.println("\nHost ID not found!\n"); System.exit(1); } catch(SSLException sslEx) { System.out.println("\nHandshaking unsuccessful ..."); System.exit(1); } catch (IOException e) { e.printStackTrace(); } System.out.println("\nHandshaking succeeded ...\n"); SSLClientThread client = new SSLClientThread(socket); SSLReceiverThread receiver = new SSLReceiverThread(socket); client.start(); receiver.start(); try { client.join(); receiver.join(); System.out.println("Trying to close..."); socket.close(); } catch(InterruptedException iEx) { iEx.printStackTrace(); } catch(IOException ioEx) { ioEx.printStackTrace(); } System.out.println("\nClient finished."); } } class SSLClientThread extends Thread { private SSLSocket socket; public SSLClientThread(SSLSocket s) { socket = s; } public void run() { try { ObjectOutputStream output = new ObjectOutputStream(socket.getOutputStream()); for( int i = 1; i < 1025; i++) { output.writeInt(i); sleep(10); output.flush(); } output.flush(); sleep(1000); output.close(); } catch(IOException ioEx) { System.out.println("Socket closed or unable to open socket."); } catch(InterruptedException iEx) { iEx.printStackTrace(); } } } class SSLReceiverThread extends Thread { private SSLSocket socket; public SSLReceiverThread(SSLSocket s) { socket = s; } public void run() { String response = null; BufferedReader input = null; try { input = new BufferedReader( new InputStreamReader(socket.getInputStream())); try { response = input.readLine(); while(!response.equals(null)) { System.out.print(response + " "); response = input.readLine(); } } catch(Exception e) { System.out.println("\nEnd of server data.\n"); } input.close(); } catch(IOException ioEx) { ioEx.printStackTrace(); } } }

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error in coding a lexer in c

- by mekasperasky

#include<stdio.h> #include<ctype.h> #include<string.h> /* this is a lexer which recognizes constants , variables ,symbols, identifiers , functions , comments and also header files . It stores the lexemes in 3 different files . One file contains all the headers and the comments . Another file will contain all the variables , another will contain all the symbols. */ int main() { int i=0,j,k,count=0; char a,b[100],c[10000],d[100]; memset ( d, 0, 100 ); j=30; FILE *fp1,*fp2; fp1=fopen("source.txt","r"); //the source file is opened in read only mode which will passed through the lexer fp2=fopen("lext.txt","w"); //now lets remove all the white spaces and store the rest of the words in a file if(fp1==NULL) { perror("failed to open source.txt"); //return EXIT_FAILURE; } i=0; k=0; while(!feof(fp1)) { a=fgetc(fp1); if(a!=' '&&a!='\n') { if (!isalpha(a)) { switch(a) { case '+':{fprintf(fp2,"+ ----> PLUS \n"); i=0;break;} case '-':{fprintf(fp2,"- ---> MINUS \n"); i=0;break;} case '*':{fprintf(fp2, "* --->MULT \n"); i=0;break;} case '/':{fprintf(fp2, "/ --->DIV \n"); i=0;break;} //case '+=':fprintf(fp2, "%.20s\n", "ADD_ASSIGN"); //case '-=':fprintf(fp2, "%.20s\n", "SUB_ASSIGN"); case '=':{fprintf(fp2, "= ---> ASSIGN \n"); i=0;break;} case '%':{fprintf(fp2, "% ---> MOD \n"); i=0;break;} case '<':{fprintf(fp2, "< ---> LESSER_THAN \n"); i=0;break;} case '>':{fprintf(fp2, "> --> GREATER_THAN \n"); i=0;break;} //case '++':fprintf(fp2, "%.20s\n", "INCREMENT"); //case '--':fprintf(fp2, "%.20s\n", "DECREMENT"); //case '==':fprintf(fp2, "%.20s\n", "ASSIGNMENT"); case ';':{fprintf(fp2, "; --->SEMI_COLUMN \n"); i=0;break;} case ':':{fprintf(fp2, ": --->COLUMN \n"); i=0;break;} case '(':{fprintf(fp2, "( --->LPAR \n"); i=0;break;} case ')':{fprintf(fp2, ") --->RPAR \n"); i=0;break;} case '{':{fprintf(fp2, "{ --->LBRACE \n"); i=0;break;} case '}':{fprintf(fp2, "} ---> RBRACE \n"); i=0;break;} } } else { d[i]=a; //printf("%c\n",d[i]); i=i+1; } //} /* we can make the lexer more complex by including even more depths of checks for the symbols*/ } else { d[i+1]='\0'; printf("\n"); if((strcmp(d,"if ")==0)){fprintf(fp2,"if ----> IDENTIFIER \n"); //printf("%s \n",d); memset ( d, 0, 100 ); //printf("%s \n",d); count=count+1;} else if(strcmp(d,"then")==0){fprintf(fp2,"then ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"else")==0){fprintf(fp2,"else ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"switch")==0){fprintf(fp2,"switch ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"printf")==0){fprintf(fp2,"prtintf ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"scanf")==0){fprintf(fp2,"scanf ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"NULL")==0){fprintf(fp2,"NULL ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"int")==0){fprintf(fp2,"INT ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"char")==0){fprintf(fp2,"char ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"float")==0){fprintf(fp2,"float ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"long")==0){fprintf(fp2,"long ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"double")==0){fprintf(fp2,"double ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"const")==0){fprintf(fp2,"const ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"continue")==0)fprintf(fp2,"continue ----> IDENTIFIER \n"); else if(strcmp(d,"size of")==0){fprintf(fp2,"size of ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"register")==0){fprintf(fp2,"register ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"short")==0){fprintf(fp2,"short ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"auto")==0){fprintf(fp2,"auto ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"while")==0){fprintf(fp2,"while ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"do")==0){fprintf(fp2,"do ----> IDENTIFIER \n"); count=count+1;} else if(strcmp(d,"case")==0){fprintf(fp2,"case ----> IDENTIFIER \n"); count=count+1;} else if (isdigit(d[i])) { fprintf(fp2,"%s ---->NUMBER",d); } else if (isalpha(a)) { fprintf(fp2,"%s ----> Variable",d); //printf("%s",d); // memset ( d, 0, 100 );} //fprintf(fp2, "s\n", b); i=0; k=k+1; continue; } i=i+1; k=k+1; } fclose(fp1); fclose(fp2); printf("%d",count); return 0; } In this code , my source.txt has if (a+b) stored . But only ( , + and ) is getting written into lext.txt and not the identifier if or the variable a and b . Any particular reason why?

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