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  • LINQ to Entities pulling back entire table

    - by Focus
    In my application I'm pulling back a user's "feed". This contains all of that user's activities, events, friend requests from other users, etc. When I pull back the feed I'm calling various functions to filter the request along the way. var userFeed = GetFeed(db); // Query to pull back all data userFeed = FilterByUser(userFeed, user, db); // Filter for the user userFeed = SortFeed(userFeed, page, sortBy, typeName); // Sort it The data that is returned is exactly what I need, however when I look at a SQL Profile Trace I can see that the query that is getting this data does not filter it at the database level and instead is selecting ALL data in the table(s). This query does not execute until I iterate through the results on my view. All of these functions return an IEnumerable object. I was under the impression that LINQ would take all of my filters and form one query to pull back the data I want instead of pulling back all the data and then filtering it on the server. What am I doing wrong or what don't I understand about the way LINQ evaluates queries?

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  • How to mix colors "naturally" with C#?

    - by crono
    I have to mix some colors in a natural way. This means blue + yellow = green blue + red = purple and so on. I got the colors as RGB-Values. When I try to mix them I got the right "RGB"-results like green + red = yellow yellow + blue = white but not the right "natural-wet-paint"-results. Any good idea how to mix RGB in a natural way? It would be great if someone knew a solution within the Microsoft.Xna.Framework.Graphics namespace but a generic solution would also help :)

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  • BlackBerry Horizontal Scrolling in TreeField or ListField

    - by sethxian
    I am working on an application that requires text larger than the viewable screen size in both a TreeField and a ListField. As you know, the TreeField and ListField callbacks support only graphics.drawText() methods, so I cannot add an instance of a Field per row. Does anyone have a method of Scrolling horizontally past the viewable text size? Is there maybe a scrollable panel that would work? I know of the NullField(Field.Focusable) trick but this won't work on the list field. Lastly, I am aware that the type of screen makes a different as FullScreen and MainScreen use VerticalFieldMangers. So am using a PopupScreen at the moment for my testing. Thank you in advance for your time.

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  • Best approach for GPGPU/CUDA/OpenCL in Java?

    - by Frederik
    General-purpose computing on graphics processing units (GPGPU) is a very attractive concept to harness the power of the GPU for any kind of computing. I'd love to use GPGPU for image processing, particles, and fast geometric operations. Right now, it seems the two contenders in this space are CUDA and OpenCL. I'd like to know: Is OpenCL usable yet from Java on Windows/Mac? What are the libraries ways to interface to OpenCL/CUDA? Is using JNA directly an option? Am I forgetting something? Any real-world experience/examples/war stories are appreciated.

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  • Graphing perpendicular offsets in a least squares regression plot in R

    - by D W
    I'm interested in making a plot with a least squares regression line and line segments connecting the datapoints to the regression line as illustrated here in the graphic called perpendicular offsets: http://mathworld.wolfram.com/LeastSquaresFitting.html I have the plot and regression line done here: ## Dataset from http://www.apsnet.org/education/advancedplantpath/topics/RModules/doc1/04_Linear_regression.html ## Disease severity as a function of temperature # Response variable, disease severity diseasesev<-c(1.9,3.1,3.3,4.8,5.3,6.1,6.4,7.6,9.8,12.4) # Predictor variable, (Centigrade) temperature<-c(2,1,5,5,20,20,23,10,30,25) ## Fit a linear model for the data and summarize the output from function lm() severity.lm <- lm(diseasesev~temperature,data=severity) # Take a look at the data plot( diseasesev~temperature, data=severity, xlab="Temperature", ylab="% Disease Severity", pch=16 ) abline(severity.lm,lty=1) title(main="Graph of % Disease Severity vs Temperature") Should I use some kind of for loop and segments http://www.iiap.res.in/astrostat/School07/R/html/graphics/html/segments.html to do the perpendicular offsets? Is there a more efficient way? Please provide an example if possible.

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  • What are good sites that provide free media resources for hobby game development?

    - by m_oLogin
    Please redirect me if this is a duplicate. I haven't been able to find a suitable question. I really suck at graphics / music / 3D modeling / animation and it's a must-have when you have a hundred hobby game development projects you're working on. I'm looking for different quality sources on the web that provide free resources. [EDIT] Some resources given by the answers: (I'll complete it with time) MUSIC Jamendo (need to ask for permission for uses) OpSound SOUND EFFECTS FreeSound StoneWashed SPRITES LostGarden The protagonist domain Reiner's Tilesets (also contains a couple of 3D models OpenGameArt (beta, not many resources but promising) Flying Yogi ANIMATED SPRITES The Spriters Resource MODELS archive3d TurboSquid 3Dvia Google Sketchup ShareCG Gamasutraexchange.com ANIMATED MODELS TurboSquid TEXTURES CG Textures OpenFrag Other precompiled lists FreeGameDev.net

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  • When to use Shift operators << >> in C# ?

    - by Junior Mayhé
    I was studying shift operators in C#, trying to find out when to use them in my code. I found an answer but for Java, you could: a) Make faster integer multiplication and division operations: *4839534 * 4* can be done like this: 4839534 << 2 or 543894 / 2 can be done like this: 543894 1 Shift operations much more faster than multiplication for most of processors. b) Reassembling byte streams to int values c) For accelerating operations with graphics since Red, Green and Blue colors coded by separate bytes. d) Packing small numbers into one single long... For b, c and d I can't imagine here a real sample. Does anyone know if we can accomplish all these items in C#? Is there more practical use for shift operators in C#?

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  • From Java GUI to Java Web

    - by Xorty
    I've been doing quite large application recently with Java - Swing. Now I'd like to move to web. Basically - I am not Microsoft guy, Java is fine with me. I've checked some basics of Java EE framework and decided that my choice will be Spring. I already am familiar with JDBC. Learning Spring is one thing, but working just with GUIs (C++ and Java) means that I have very poor knowledge of web development. Before I start reading tutorials of Spring MVC, what should I know to develop web solutions? I am mainly interested "how to" with graphics ... start from scratch or some nice IDE RAD-like development ? I kind of like f.e. Silverlight and integrating to web or asp.net win forms - allows us 'GUI' people develop faster. So can you please give me some useful advices? Thanx

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  • Median Filter a bi-level image with JAI

    - by Mark
    I'd like to apply a Median Filter to a bi-level image and output a bi-level image. The JAI median filter seems to output an RGB image, which I'm having trouble downconverting back to bi-level. Currently I can't even get the image back into gray color-space, my code looks like this: BufferedImage src; // contains a bi-level image ParameterBlock pb = new ParameterBlock(); pb.addSource(src); pb.add(MedianFilterDescriptor.MEDIAN_MASK_SQUARE); pb.add(3); RenderedOp result = JAI.create("MedianFilter", pb); ParameterBlock pb2 = new ParameterBlock(); pb2.addSource(result); pb2.add(new double[][]{{0.33, 0.34, 0.33, 0}}); RenderedOp grayResult = JAI.create("BandCombine", pb2); BufferedImage foo = grayResult.getAsBufferedImage(); This code hangs on the grayResult line and appears not to return. I assume that I'll eventually need to call the "Binarize" operation in JAI. Edit: Actually, the code appears to be stalling once I call getAsBufferedImage(), but returns nearly instantly when the second operation ("BandCombine") is removed. Is there a better way to keep the Median Filtering in the source color domain? If not, how do I downconvert back to binary?

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  • Windows 2008 RenderFarm Service: CreateProcessAsUser "Session 0 Isolation" and OpenGL

    - by holtavolt
    Hello, I have a legacy Windows server service and (spawned) application that works fine in XP-64 and W2K3, but fails on W2K8. I believe it is because of the new "Session 0 isolation " feature. (Note: As a StackOverflow newbie I'm being limited to one link in this post, so you'll need to scroll to bottom to lookup the links for '' items)* Consequently, I'm looking for code samples/security settings mojo that let you create a new process from a windows service for Windows 2008 Server such that I can restore (and possibly surpass) the previous behavior. I need a solution that: Creates the new process in a non-zero session to get around session-0 isolation restrictions (no access to graphics hardware from session 0) - the official MS line on this is: Because Session 0 is no longer a user session, services that are running in Session 0 do not have access to the video driver. This means that any attempt that a service makes to render graphics fails. Querying the display resolution and color depth in Session 0 reports the correct results for the system up to a maximum of 1920x1200 at 32 bits per pixel. The new process gets a windows station/desktop (e.g. winsta0/default) that can be used to create windows DCs. I've found a solution (that launches OK in an interactive session) for this here: *(Starting an Interactive Client Process in C++ - 2) The windows DC, when used as the basis for an *(OpenGL DescribePixelFormat enumeration - 3), is able to find and use the hardware-accelerated format (on a system appropriately equipped with OpenGL hardware.) Note that our current solution works OK on XP-64 and W2K3, except if a terminal services session is running (VNC works fine.) A solution that also allowed the process to work (i.e. run with OpenGL hardware acceleration even when a terminal services session is open) would be fanastic, although not required. I'm stuck at item #1 currently, and although there are some similar postings that discuss this (like *(this -4), and *(this - 5) - they are not suitable solutions, as there is no guarantee of a user session logged in already to "take" a session id from, nor am I running from a LocalSystem account (I'm running from a domain account for the service, for which I can adjust the privileges of, within reason, although I'd prefer to not have to escalate priorities to include SeTcbPrivileges.) For instance - here's a stub that I think should work, but always returns an error 1314 on the SetTokenInformation call (even though the AdjustTokenPrivileges returned no errors) I've used some alternate strategies involving "LogonUser" as well (instead of opening the existing process token), but I can't seem to swap out the session id. I'm also dubious about using the WTSActiveConsoleSessionId in all cases (for instance, if no interactive user is logged in) - although a quick test of the service running with no sessions logged in seemed to return a reasonable session value (1). I’ve removed error handling for ease of reading (still a bit messy - apologies) //Also tried using LogonUser(..) here OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES | TOKEN_ADJUST_SESSIONID | TOKEN_ADJUST_DEFAULT | TOKEN_ASSIGN_PRIMARY | TOKEN_DUPLICATE, &hToken) GetTokenInformation( hToken, TokenSessionId, &logonSessionId, sizeof(DWORD), &dwTokenLength ) DWORD consoleSessionId = WTSGetActiveConsoleSessionId(); /* Can't use this - requires very elevated privileges (LOCAL only, SeTcbPrivileges as well) if( !WTSQueryUserToken(consoleSessionId, &hToken)) ... */ DuplicateTokenEx(hToken, (TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES | TOKEN_ADJUST_SESSIONID | TOKEN_ADJUST_DEFAULT | TOKEN_ASSIGN_PRIMARY | TOKEN_DUPLICATE), NULL, SecurityIdentification, TokenPrimary, &hDupToken)) // Look up the LUID for the TCB Name privilege. LookupPrivilegeValue(NULL, SE_TCB_NAME, &tp.Privileges[0].Luid)) // Enable the TCB Name privilege in the token. tp.PrivilegeCount = 1; tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; if (!AdjustTokenPrivileges(hDupToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, 0)) { DisplayError("AdjustTokenPrivileges"); ... } if (GetLastError() == ERROR_NOT_ALL_ASSIGNED) { DEBUG( "Token does not have the necessary privilege.\n"); } else { DEBUG( "No error reported from AdjustTokenPrivileges!\n"); } // Never errors here DEBUG(LM_INFO, "Attempting setting of sessionId to: %d\n", consoleSessionId ); if (!SetTokenInformation(hDupToken, TokenSessionId, &consoleSessionId, sizeof(DWORD))) *** ALWAYS FAILS WITH 1314 HERE *** All the debug output looks fine up until the SetTokenInformation call - I see session 0 is my current process session, and in my case, it's trying to set session 1 (the result of the WTSGetActiveConsoleSessionId). (Note that I'm logged into the W2K8 box via VNC, not RDC) So - a the questions: Is this approach valid, or are all service-initiated processes restricted to session 0 intentionally? Is there a better approach (short of "Launch on logon" and auto-logon for the servers?) Is there something wrong with this code, or a different way to create a process token where I can swap out the session id to indicate I want to spawn the process in a new session? I did try using LogonUser instead of OpenProcessToken, but that didn't work either. (I don't care if all spawned processes share the same non-zero session or not at this point.) Any help much appreciated - thanks! (You need to replace the 'zttp' with 'http' - StackOverflow restriction on one link in my newbie post) 2: http://msdn.microsoft.com/en-us/library/aa379608(VS.85).aspx 3: http://www.opengl.org/resources/faq/technical/mswindows.htm 4: http://stackoverflow.com/questions/2237696/creating-a-process-in-a-non-zero-session-from-a-service-in-windows-2008-server 5: http://stackoverflow.com/questions/1602996/how-can-i-lauch-a-process-which-has-a-ui-from-windows-service

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  • Change Edit Control Block (ECB) Link URL in SharePoint

    - by dirq
    Is there a way to dynamically change the hyperlink associated with an ECB menu in WSS 3.0? For instance, I have a list with 2 fields. One field is hidden and is a link, the other is the title field which has the ECB menu. The title field currently links to the item's view page - but we want it to link to the link-field's url. Is that possible? UPDATE - 5/29/09 9AM I have this so far. See this TechNet post. <script type="text/javascript"> var url = 'GoTo.aspx?ListTitle='+ctx.ListTitle; url += '&ListName='+ctx.listName; url += '&ListTemplate='+ctx.listTemplate; url += '&listBaseType='+ctx.listBaseType; url += '&view='+ctx.view; url += '&'; var a = document.getElementsByTagName('a'); for(i=0;i<=a.length -1;i++) { a[i].href=a[i].href.replace('DispForm.aspx?',url); } </script> This gives me a link like so (formatted so it's easier to see): GoTo.aspx ?ListTitle=MyList &ListName={082BB11C-1941-4906-AAE9-5F2EBFBF052B} &ListTemplate=100 &listBaseType=0 &view={9ABE2B07-2B47-4390-9969-258F00E0812C} &ID=1 My issue now is that the row in the grid gives each item the ID property above but if I change the view or do any filtering you can see that the ID is really just the row number. Can I get the actual item's GUID here? If I can get the item's ID I can send it with the list ID to an application page that will get the right URL from field in the list and forward the user on to the right site.

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  • Iterating through a JSON object.

    - by user327508
    [ { "title": "Baby (Feat. Ludacris) - Justin Bieber", "description": "Baby (Feat. Ludacris) by Justin Bieber on Grooveshark", "link": "http://listen.grooveshark.com/s/Baby+Feat+Ludacris+/2Bqvdq", "pubDate": "Wed, 28 Apr 2010 02:37:53 -0400", "pubTime": 1272436673, "TinyLink": "http://tinysong.com/d3wI", "SongID": "24447862", "SongName": "Baby (Feat. Ludacris)", "ArtistID": "1118876", "ArtistName": "Justin Bieber", "AlbumID": "4104002", "AlbumName": "My World (Part II);\nhttp://tinysong.com/gQsw", "LongLink": "11578982", "GroovesharkLink": "11578982", "Link": "http://tinysong.com/d3wI" }, { "title": "Feel Good Inc - Gorillaz", "description": "Feel Good Inc by Gorillaz on Grooveshark", "link": "http://listen.grooveshark.com/s/Feel+Good+Inc/1UksmI", "pubDate": "Wed, 28 Apr 2010 02:25:30 -0400", "pubTime": 1272435930 } ] That is the current JSON object I have. I am now trying to iterate through it to get the import stuff like title and link. This is where I am having trouble I cant seem to get to the content that is past the ":" i tried doing dictionary way couldn't get it. def getLastSong(user,limit): base_url = 'http://gsuser.com/lastSong/' user_url = base_url + str(user) + '/' + str(limit) + "/" raw = urllib.urlopen(user_url) json_raw= raw.readlines() json_object = json.loads(json_raw[0]) #filtering and making it look good. gsongs = [] print json_object for song in json_object[0]: print song This code prints all the information before ":" Please help. ignore the Justin Bieber track :)

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  • How to add Editext and Button to Efficent Adapter which has a Icon and text

    - by jayanthgande
    Hi, I want to create a layout in such a way that on top edittext and button should be there in one row. The search text I enter in editext and click on search button. Then I want to display a custom list view where each row contains image and text.(As per the API demos example list14 I have tried). But when I run the application, button and edittext are being added to each row (i.e., Each row contains a image, text, editext, button. Can Any one guide how to resolve this issue. Below is my xml file: <!-- <FrameLayout android:layout_width="wrap_content" android:layout_height="0dip" android:layout_weight="1"></FrameLayout> --> <ImageView android:id="@+id/icon" android:layout_width="48dip" android:layout_height="48dip" /> <TextView android:id="@+id/text" android:layout_gravity="center_vertical" android:layout_width="0dip" android:layout_weight="1.0" android:layout_height="wrap_content" /> <!-- <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/prdsearchtb" android:text="@string/tb_prd_search_lbl"></EditText> --> <!-- <TableLayout android:id="@+id/TableLayout01" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TableRow> --> <Button android:id="@+id/prdsrcbutton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/btn_lbl_prd_search" android:layout_x="2px" android:layout_y="410px"></Button> <!-- </TableRow> </TableLayout> -- and Java File: /** * */ package org.techdata.activity; import android.app.AlertDialog; import android.app.ListActivity; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; /** * @author jayanthg * */ public class ProductSearch extends ListActivity { private static class ProductSearchAdapter extends BaseAdapter { private LayoutInflater mInflater; private Bitmap mIcon1; private Bitmap mIcon2; public ProductSearchAdapter(Context context) { mInflater = LayoutInflater.from(context); // Icons bound to the rows. mIcon1 = BitmapFactory.decodeResource(context.getResources(), R.drawable.icon48x48_1); mIcon2 = BitmapFactory.decodeResource(context.getResources(), R.drawable.icon48x48_2); } @Override public int getCount() { return DATA.length; } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { ViewHolder holder; Button btn=null; if (convertView == null) { convertView = mInflater.inflate(R.layout.productsearch, null); // Creates a ViewHolder and store references to the two children // views // we want to bind data to. holder = new ViewHolder(); holder.text = (TextView) convertView.findViewById(R.id.text); holder.icon = (ImageView) convertView.findViewById(R.id.icon); btn=(Button)convertView.findViewById(R.id.prdsrcbutton); convertView.setTag(holder); } else { // Get the ViewHolder back to get fast access to the TextView // and the ImageView. holder = (ViewHolder) convertView.getTag(); } // Bind the data efficiently with the holder. holder.text.setText(DATA[position]); holder.icon.setImageBitmap((position & 1) == 1 ? mIcon1 : mIcon2); holder.icon.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.i("image", " u clicked on icon Position" + position); } }); holder.text.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.i("Text", " u clicked on text Position" + position); } }); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.i("Button","U clicked on button"); } }); return convertView; } static class ViewHolder { TextView text; ImageView icon; } private static final String[] DATA = { "Abbaye de Belloc", "Abbaye du Mont des Cats" }; } ListView product_search_list; Button srch_btn; EditText srch_text; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setListAdapter(new ProductSearchAdapter(this)); // setContentView(R.layout.productsearch); // getListView().setEmptyView(findViewById(R.id.text)); // srch_text = (EditText)findViewById(R.id.prdsearchtb); // srch_btn = (Button) findViewById(R.id.prdsearchtb); // srch_btn.setOnClickListener(new View.OnClickListener() { // // @Override // public void onClick(View v) { // callProductSearchAdapter(); // // } // }); } void callProductSearchAdapter() { setListAdapter(new ProductSearchAdapter(this)); } private void createDialog(String title, String text, final Intent i) { if (i == null) { AlertDialog ad = new AlertDialog.Builder(this).setIcon( R.drawable.alert_dialog_icon).setPositiveButton("Ok", null) .setTitle(title).setMessage(text).create(); ad.show(); } } } Regards: Jayanth

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  • How to control Dojo FilteringSelect default rendering!?

    - by Nick
    Hi, I have a dojo dijit.filering.select that populates with values from a dojo.data.ItemFileReadStore. Everything is working fine except I would like the filtering select to automatically get populated with the first value in the itemFileReadStore. Currently it is loading them as a list of options that are revealed when you click the down arrow, as per spec. I would instead like filteringSelect to be loaded with the first value. How do I do this? For some reason I cant figure it out. Any help would be hugely appreciated! Kind Regards Nick Frandsen <script type="text/javascript"> function updateOptions(){ var itemId = dijit.byId("item_select").attr("value"); var jsonStore = new dojo.data.ItemFileReadStore({ url: "/options/get-options-json/itemId/" + itemId }); optionSelect.attr("store", jsonStore); } </script> <select dojoType="dijit.form.FilteringSelect" name="option_select" id="option_select" labelAttr="name" required="true" jsId="optionSelect"> </select>

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  • ASPX ajax form post help

    - by StealthRT
    Hey all, i have this peice of code that allows a user to select a jpg image, resize it and uploads it to the server driectory. The problem being is that it reloads the aspx page when it saves the image. My question is-is there any way to do this same thing but with ajax so that it doesn't leave the page after submitting it? I've done this pleanty of times with classic asp pages but never with a aspx page. Here is the code for the ASPX page: <%@ Page Trace="False" Language="vb" aspcompat="false" debug="true" validateRequest="false"%> <%@ Import Namespace=System.Drawing %> <%@ Import Namespace=System.Drawing.Imaging %> <%@ Import Namespace=System.Drawing.Text %> <%@ Import Namespace=System %> <%@ Import Namespace=System.IO %> <%@ Import Namespace=System.Web %> <%@ Import Namespace=System.ServiceProcess %> <%@ Import Namespace=Microsoft.Data.Odbc %> <%@ Import Namespace=System.Data.Odbc %> <%@ Import Namespace=MySql.Data.MySqlClient %> <%@ Import Namespace=MySql.Data %> <%@ Import Namespace=System.Drawing.Drawing2D %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.ADO" %> <%@ Import Namespace=ADODB %> <SCRIPT LANGUAGE="VBScript" runat="server"> const Lx = 200 const Ly = 60 const upload_dir = "/img/avatar/" const upload_original = "tmpAvatar" const upload_thumb = "thumb" const upload_max_size = 256 dim fileExt dim newWidth, newHeight as integer dim l2 dim fileFld as HTTPPostedFile Dim originalimg As System.Drawing.Image dim msg dim upload_ok as boolean </script> <% Dim theID, theEmail, maleOrFemale theID = Request.QueryString("ID") theEmail = Request.QueryString("eMail") maleOrFemale = Request.QueryString("MF") randomize() upload_ok = false if lcase(Request.ServerVariables("REQUEST_METHOD"))="post" then fileFld = request.files(0) if fileFld.ContentLength > upload_max_size * 1024 then msg = "Sorry, the image must be less than " & upload_max_size & "Kb" else try fileExt = System.IO.Path.GetExtension(fileFld.FileName).ToLower() if fileExt = ".jpg" then originalImg = System.Drawing.Image.FromStream(fileFld.InputStream) if originalImg.Height > Ly then newWidth = Ly * (originalImg.Width / originalImg.Height) newHeight = Ly end if Dim thumb As New Bitmap(newWidth, newHeight) Dim gr_dest As Graphics = Graphics.FromImage(thumb) dim sb = new SolidBrush(System.Drawing.Color.White) gr_dest.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality gr_dest.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality gr_dest.FillRectangle(sb, 0, 0, thumb.Width, thumb.Height) gr_dest.DrawImage(originalImg, 0, 0, thumb.Width, thumb.Height) try originalImg.save(Server.MapPath(upload_dir & upload_original & fileExt), originalImg.rawformat) thumb.save(Server.MapPath(upload_dir & theID & fileExt), originalImg.rawformat) msg = "Uploaded " & fileFld.FileName & " to " & Server.MapPath(upload_dir & upload_original & fileExt) upload_ok = true File.Delete(Server.MapPath(upload_dir & upload_original & fileExt)) catch msg = "Sorry, there was a problem saving your avatar. Please try again." end try if not thumb is nothing then thumb.Dispose() thumb = nothing end if else msg = "That image does not seem to be a JPG. Upload only JPG images." end if catch msg = "That image does not seem to be a JPG." end try end if if not originalImg is nothing then originalImg.Dispose() originalImg = nothing end if end if %><head> <meta http-equiv="pragma" content="no-cache" /> </head> <html> <script type="text/javascript" src="js/jquery-1.3.min.js"></script> <form enctype="multipart/form-data" method="post" runat="server" id="sendImg"> <input type="file" name="upload_file" id="upload_file" style="-moz-opacity: 0; opacity:0; filter: alpha(opacity=0); margin-top: 5px; float:left; cursor:pointer;" onChange="$('#sendImg').submit();" > <input type="submit" value="Upload" style="visibility:hidden; display:none;"> </form> </body> </html> Any help would be great! :o) David

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  • Help with JPQL query

    - by Robert
    I have to query a Message that is in a provided list of Groups and has not been Deactivated by the current user. Here is some pseudo code to illustrate the properties and entities: class Message { private int messageId; private String messageText; } class Group { private String groupId; private int messageId; } class Deactivated { private String userId; private int messageId; } Here is an idea of what I need to query for, it's the last AND clause that I don't know how to do (I made up the compound NOT IN expression). Filtering the deactivated messages by userId can result in multiple messageIds, how can I check if that subset of rows does not contain the messageId? SELECT msg FROM Message msg, Group group, Deactivated unactive WHERE group.messageId = msg.messageId AND (group.groupId = 'groupA' OR group.groupId = 'groupB' OR ...) AND ('someUserId', msg.messageId) NOT IN (unactive.userId, unactive.messageId) I don't know the number of groupIds ahead of time -- I receive them as a Collection<String> so I'll need to traverse them and add them to the JPQL dynamically.

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  • Compute bounding quad of a sphere with vertex shader

    - by Ben Jones
    I'm trying to implement an algorithm from a graphics paper and part of the algorithm is rendering spheres of known radius to a buffer. They say that they render the spheres by computing the location and size in a vertex shader and then doing appropriate shading in a fragment shader. Any guesses as to how they actually did this? The position and radius are known in world coordinates and the projection is perspective. Does that mean that the sphere will be projected as a circle? Thanks!

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  • Move multiple BufferedImage in Java2D?

    - by zo0mbie
    How can I mousedrag different BufferedImages in Java2D? For instance, if I have ten or more images, how can I move that images which my mouse is over? Now I'm importing an BufferedImage with BufferedImage img = new BufferdImage(new File("filename")); And I'm painting this with Graphics2D with public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g; g2d.drawImage(img, x1, y1, null); g2d.drawImage(img2, x2, y2,null); } Everytime I'm moving on a image I'm repaint()-ing the entire screen. My mousemove class is as follows class MouseMotionHandler extends MouseMotionAdapter { @Override public void mouseDragged(MouseEvent e) { x1 = e.getX() - (img.getWidth() / 2); y1 = e.getY() - (img.getHeight() / 2); repaint(); } } With this method I'm able to "drag" one picture, but what to do when I will drag more individually?

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  • ASP.NET MVC, Url Routing: Maximum Path (URL) Length

    - by Martin Aatmaa
    The Scenario I have an application where we took the good old query string URL structure: ?x=1&y=2&z=3&a=4&b=5&c=6 and changed it into a path structure: /x/1/y/2/z/3/a/4/b/5/c/6 We're using ASP.NET MVC and (naturally) ASP.NET routing. The Problem The problem is that our parameters are dynamic, and there is (theoretically) no limit to the amount of parameters that we need to accommodate for. This is all fine until we got hit by the following train: HTTP Error 400.0 - Bad Request ASP.NET detected invalid characters in the URL. IIS would throw this error when our URL got past a certain length. The Nitty Gritty Here's what we found out: This is not an IIS problem IIS does have a max path length limit, but the above error is not this. Learn dot iis dot net How to Use Request Filtering Section "Filter Based on Request Limits" If the path was too long for IIS, it would throw a 404.14, not a 400.0. Besides, the IIS max path (and query) length are configurable: <requestLimits maxAllowedContentLength="30000000" maxUrl="260" maxQueryString="25" /> This is an ASP.NET Problem After some poking around: IIS Forums Thread: ASP.NET 2.0 maximum URL length? http://forums.iis.net/t/1105360.aspx it turns out that this is an ASP.NET (well, .NET really) problem. The shit of the matter is that, as far as I can tell, ASP.NET cannot handle paths longer than 260 characters. The nail in the coffin in that this is confirmed by Phil the Haack himself: Stack Overflow ASP.NET url MAX_PATH limit Question ID 265251 The Question So what's the question? The question is, how big of a limitation is this? For my app, it's a deal killer. For most apps, it's probably a non-issue. What about disclosure? No where where ASP.NET Routing is mentioned have I ever heard a peep about this limitation. The fact that ASP.NET MVC uses ASP.NET routing makes the impact of this even bigger. What do you think?

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  • JPA merge fails due to duplicate key

    - by wobblycogs
    I have a simple entity, Code, that I need to persist to a MySQL database. public class Code implements Serializable { @Id private String key; private String description; ...getters and setters... } The user supplies a file full of key, description pairs which I read, convert to Code objects and then insert in a single transaction using em.merge(code). The file will generally have duplicate entries which I deal with by first adding them to a map keyed on the key field as I read them in. A problem arises though when keys differ only by case (for example: XYZ and XyZ). My map will, of course, contain both entries but during the merge process MySQL sees the two keys as being the same and the call to merge fails with a MySQLIntegrityConstraintViolationException. I could easily fix this by uppercasing the keys as I read them in but I'd like to understand exactly what is going wrong. The conclusion I have come to is that JPA considers XYZ and XyZ to be different keys but MySQL considers them to be the same. As such when JPA checks its list of known keys (or does whatever it does to determine whether it needs to perform an insert or update) it fails to find the previous insert and issuing another which then fails. Is this corrent? Is there anyway round this other than better filtering the client data? I haven't defined .equals or .hashCode on the Code class so perhaps this is the problem.

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  • Move a legend in ggplot2

    - by Dan Goldstein
    I'm trying to create a ggplot2 plot with the legend beneath the plot. The ggplot2 book says on p 112 "The position and justification of legends are controlled by the theme setting legend.position, and the value can be right, left, top, bottom, none (no legend), or a numeric position". The following code works (since "right" it is the default), and it also works with "none" as the legend position, but "left", "top", "bottom", all fail with "Error in grid.Call.graphics("L_setviewport", pvp, TRUE) : Non-finite location and/or size for viewport" library(ggplot2) (myDat <- data.frame(cbind(VarX=10:1, VarY=runif(10)), Descrip=sample(LETTERS[1:3], 10, replace=TRUE))) qplot(VarX,VarY, data=myDat, shape=Descrip) + opts(legend.position="right") What am I doing wrong? Re-positioning a legend must be incredibly common, so I figure it's me.

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  • Decoding bitmaps in Android with the right size

    - by hgpc
    I decode bitmaps from the SD card using BitmapFactory.decodeFile. Sometimes the bitmaps are bigger than what the application needs or that the heap allows, so I use BitmapFactory.Options.inSampleSize to request a subsampled (smaller) bitmap. The problem is that the platform does not enforce the exact value of inSampleSize, and I sometimes end up with a bitmap either too small, or still too big for the available memory. From http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inSampleSize: Note: the decoder will try to fulfill this request, but the resulting bitmap may have different dimensions that precisely what has been requested. Also, powers of 2 are often faster/easier for the decoder to honor. How should I decode bitmaps from the SD card to get a bitmap of the exact size I need while consuming as little memory as possible to decode it?

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  • iPhone: Changing CGImageAlphaInfo of CGImage

    - by TechZen
    I have a PNG image that has an unsupported bitmap graphics context pixel format. Whenever I attempt to resize the image, CGBitmapContextCreate() chokes on the unsupported format (Error formatted for easy reading): CGBitmapContextCreate: unsupported parameter combination: 8 integer bits/component; 32 bits/pixel; 3-component colorspace; kCGImageAlphaLast; 1344 bytes/row. The list of supported pixel formats definitely does not support this combination. It appears I need to redraw the image and move the alpha channel information to kCGImageAlphaPremultipliedFirst or kCGImageAlphaPremultipliedLast. I have no idea how to go about doing this. There is nothing unusual about the PNG file and it isn't corrupted. It works in all other context just fine. I encountered this error just by chance but obviously my users might have similarly formatted files so I will have to check my app's imported images and correct for this problem.

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  • Linq - Orderby not ordering

    - by Billy Logan
    Hello everyone, I have a linq query that for whatever reason is not coming back ordered as i would expect it to. Can anyone point me in the right direction as to why and what i am doing wrong? Code is as follows: List<TBLDESIGNER> designer = null; using (SOAE strikeOffContext = new SOAE()) { //Invoke the query designer = AdminDelegates.selectDesignerDesigns.Invoke(strikeOffContext).ByActive(active).ByAdmin(admin).ToList(); } Delegate: public static Func<SOAE, IQueryable<TBLDESIGNER>> selectDesignerDesigns = CompiledQuery.Compile<SOAE, IQueryable<TBLDESIGNER>>( (designer) => from c in designer.TBLDESIGNER.Include("TBLDESIGN") orderby c.FIRST_NAME ascending select c); Filter ByActive: public static IQueryable<TBLDESIGNER> ByActive(this IQueryable<TBLDESIGNER> qry, bool active) { //Return the filtered IQueryable object return from c in qry where c.ACTIVE == active select c; } Filter ByAdmin: public static IQueryable<TBLDESIGNER> ByAdmin(this IQueryable<TBLDESIGNER> qry, bool admin) { //Return the filtered IQueryable object return from c in qry where c.SITE_ADMIN == admin select c; } Wondering if the filtering has anything to do with it?? Thanks in advance, Billy

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  • What should be the responsibility of a presenter here?

    - by Achu
    I have a 3 layer design. (UI / BLL / DAL) UI = ASP.NET MVC In my view I have collection of products for a category. Example: Product 1, Product 2 etc.. A user able to select or remove (by selecting check box) product’s from the view, finally save as a collection when user submit these changes. With this 3 layer design how this product collection will be saved? How the filtering of products (removal and addition) to the category object? Here are my options. (A) It is the responsibility of the controller then the pseudo Code would be Find products that the user selected or removed and compare with existing records. Add or delete that collection to category object. Call SaveCategory(category); // BLL CALL Here the first 2 process steps occurs in the controller. (B) It is the responsibility of BLL then pseudo Code would be Collect products what ever user selected SaveCategory(category, products); // BLL CALL Here it's up to the SaveCategory (BLL) to decide what products should be removed and added to the database. Thanks

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