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  • Saving complex aggregates using Repository Pattern

    - by Kevin Lawrence
    We have a complex aggregate (sensitive names obfuscated for confidentiality reasons). The root, R, is composed of collections of Ms, As, Cs, Ss. Ms have collections of other low-level details. etc etc R really is an aggregate (no fair suggesting we split it!) We use lazy loading to retrieve the details. No problem there. But we are struggling a little with how to save such a complex aggregate. From the caller's point of view: r = repository.find(id); r.Ps.add(factory.createP()); r.Cs[5].updateX(123); r.Ms.removeAt(5); repository.save(r); Our competing solutions are: Dirty flags Each entity in the aggregate in the aggregate has a dirty flag. The save() method in the repository walks the tree looking for dirty objects and saves them. Deletes and adds are a little trickier - especially with lazy-loading - but doable. Event listener accumulates changes. Repository subscribes a listener to changes and accumulates events. When save is called, the repository grabs all the change events and writes them to the DB. Give up on repository pattern. Implement overloaded save methods to save the parts of the aggregate separately. The original example would become: r = repository.find(id); r.Ps.add(factory.createP()); r.Cs[5].updateX(123); r.Ms.removeAt(5); repository.save(r.Ps); repository.save(r.Cs); repository.save(r.Ms); (or worse) Advice please! What should we do?

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  • remove specific values from multi value dictionary

    - by Anthony
    I've seen posts here on how to make a dictionary that has multiple values per key, like one of the solutions presented in this link: Multi Value Dictionary it seems that I have to use a List< as the value for the keys, so that a key can store multiple values. the solution in the link is fine if you want to add values. But my problem now is how to remove specific values from a single key. I have this code for adding values to a dictionary: private Dictionary<TKey, List<TValue>> mEventDict; // this is for initializing the dictionary public void Subscribe(eVtEvtId inEvent, VtEvtDelegate inCallbackMethod) { if (mEventDict.ContainsKey(inEvent)) { mEventDict[inEvent].Add(inCallbackMethod); } else { mEventDict.Add(inEvent, new List<TValue>() { v }); } } // this is for adding values to the dictionary. // if the "key" (inEvent) is not yet present in the dictionary, // the key will be added first before the value my problem now is removing a specific value from a key. I have this code: public void Unsubscribe(eVtEvtId inEvent, VtEvtDelegate inCallbackMethod) { try { mEventDict[inEvent].Remove(inCallbackMethod); } catch (ArgumentNullException) { MessageBox.Show("The event is not yet present in the dictionary"); } } basically, what I did is just replace the Add() with Remove() . Will this work? Also, if you have any problems or questions with the code (initialization, etc.), feel free to ask. Thanks for the advice.

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  • Can I get a reference to a pending transaction from a SqlConnection object?

    - by Rune
    Hey, Suppose someone (other than me) writes the following code and compiles it into an assembly: using (SqlConnection conn = new SqlConnection(connString)) { conn.Open(); using (var transaction = conn.BeginTransaction()) { /* Update something in the database */ /* Then call any registered OnUpdate handlers */ InvokeOnUpdate(conn); transaction.Commit(); } } The call to InvokeOnUpdate(IDbConnection conn) calls out to an event handler that I can implement and register. Thus, in this handler I will have a reference to the IDbConnection object, but I won't have a reference to the pending transaction. Is there any way in which I can get a hold of the transaction? In my OnUpdate handler I want to execute something similar to the following: private void MyOnUpdateHandler(IDbConnection conn) { var cmd = conn.CreateCommand(); cmd.CommandText = someSQLString; cmd.CommandType = CommandType.Text; cmd.ExecuteNonQuery(); } However, the call to cmd.ExecuteNonQuery() throws an InvalidOperationException complaining that "ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized". Can I in any way enlist my SqlCommand cmd with the pending transaction? Can I retrieve a reference to the pending transaction from the IDbConnection object (I'd be happy to use reflection if necessary)?

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  • How to change the view angle and label value of a chart .NET C#

    - by George
    Short Description I am using charts for a specific application where i need to change the view angle of the rendered 3D Pie chart and value of automatic labels from pie label names to corresponding pie values. This how the chart looks: Initialization This is how i initialize it: Dictionary<string, decimal> secondPersonsWithValues = HistoryModel.getSecondPersonWithValues(); decimal[] yValues = new decimal[secondPersonsWithValues.Values.Count]; //VALUES string[] xValues = new string[secondPersonsWithValues.Keys.Count]; //LABELS secondPersonsWithValues.Keys.CopyTo(xValues, 0); secondPersonsWithValues.Values.CopyTo(yValues, 0); incomeExpenseChart.Series["Default"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Pie; incomeExpenseChart.Series["Default"].Points.DataBindXY(xValues, yValues); incomeExpenseChart.ChartAreas["Default"].Area3DStyle.Enable3D = true; incomeExpenseChart.Series["Default"].CustomProperties = "PieLabelStyle=Outside"; incomeExpenseChart.Legends["Default"].Enabled = true; incomeExpenseChart.ChartAreas["Default"].Area3DStyle.LightStyle = System.Windows.Forms.DataVisualization.Charting.LightStyle.Realistic; incomeExpenseChart.Series["Default"]["PieDrawingStyle"] = "SoftEdge"; Basically i am querying data from database using the HistoryModel.getSecondPersonWithValues(); to get pairs as Dictionary<string, decimal> where key is the person and value is ammount. Problem #1 What i need is to be able to change the marked labels from person names to the ammounts or add another label of ammounts with the same colors (See Image). Problem #2 Another problem is that i need to change the view angle of 3D Pie chart. Maybe it's very simple and I just don't know the needed property or maybe i need to override some paint event. Either ways any kind of ways would be appriciated. Thanks in advance George.

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  • Problem in loading Iframe in FireFox!

    - by maddy
    Hello all, I'm trying to load an aspx page using Iframe in VB.net. I'm trying to set the source of Iframe with the help of Ext (JavaScript). My aspx code: <div id="container"> < iframe id="pane" name="pane" src="Empty.aspx" frameborder="0" > </iframe> </div> My Javascript code: Pane = function() { var pane; return { init: function() { if (!document.body) { return; } pane = Ext.get('pane'); if ( something ) { this.load(); } else { this.navigateTo('Page.aspx?id=' + a.ID); } }, load: function() { pane.dom.src = 'HTTPURL'; }, navigateTo: function(url) { var agt = navigator.userAgent.toLowerCase(); if (agt.indexOf("firefox") != -1) { document.getElementById('pane').src = url; } else { pane.dom.src = url; } } }; } (); This works fine with IE and Iframe gets loaded with page.aspx every time the parent page is requested. But with FireFox it doesn't. With FireFox the src attribute remains "Empty.aspx" when the page is loaded but when I refresh the page i.e. in post back event the src attribute changes to "page.aspx?id=a.id" and iframe gets loaded properly. Has anyone faced such kind of problem before? If you know the solution please help me, it's killing me big. Thanks in advance. Maddy.

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  • Problem in loading Iframe in FireFox!

    - by maddy
    Hello all, I'm trying to load an aspx page using Iframe in VB.net. I'm trying to do it(setting the source of Iframe) with the help of Ext(JavaScript). aspx code: < div id="container" > < iframe id="pane" name="pane" src="Empty.aspx" frameborder="0" >< /iframe> < /div > Javascript code: Pane = function() { var pane; return { init: function() { if (!document.body) { return; } pane = Ext.get('pane'); if ( something ) { this.load(); } else { this.navigateTo('Page.aspx?id=' + a.ID); } }, load: function() { pane.dom.src = 'HTTPURL'; }, navigateTo: function(url) { var agt = navigator.userAgent.toLowerCase(); if (agt.indexOf("firefox") != -1) { document.getElementById('pane').src = url; } else { pane.dom.src = url; } } }; } (); This works fine with IE and Ifrma gets loaded wuth page.aspx every time the parent page is requested. But with FireFox it doesn't. With FireFox the src attribute remains "Empty.aspx" when the page is loaded but when i refresh the page i.e. in post back event the scr attribute changes to "page.aspx?id=a.id" and iframe gets loaded properly. Has anyone faced such kind of problem before? and knows the solution please help me, it's killing me big. Thanks in Advance. Maddy.

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  • Ajax UpdatePanels scroll on partial page update.

    - by George
    I set the AutoPostback property of a textbox to True so I can process the TextChanged event on the server and, based on what they typed in the textbox, appropriately display a message in an update panel. The problem is, when the partial screen refresh is performed, no control on the screen has focus. 99% of the time, when the text in the textbox is changed, it is because the user has tabbed forward, and so, to limit the disruption in the lost of focus, I perform a "Focus" call on teh next control in the tab sequence. For the most part, this works OK, but of course, is disputive if the user is tabbing in the reverse order or has used the mouse to set the focus to another control. In these situations, the focus would be set to the next control even though the user was trying to set focus elsewhere. OK, that sucks. Now what I consider the bigger problem with calling the focus method on the server: In IE, it works OK, but in Mozilla Firefox and Chrome, setting the focus causes a repositioning of the scroll bar, even though none is necessary because the control is already in view. I realize that I could switch to doing AJAX web service calls, but these darn Updae Panels are so convenient if used in moderation. is there anyway to use updatepanels and not have these focus/scroll issues?

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  • Javascript: Error 'Object Required.'

    - by javascripthelp
    The following is the error popup message I get when I click "Finalize" button on my website: "Line: 298 Char: 5 Error: Object required: 'lobi_c_selected(...)' Code: 0 URL: http://10.128.23.50/i-prostage/AP/w_ap_check_reconciliation.asp?" Normally, when I click "Finalize" button, it'll generate and show a report in a popup window. However, I'd get this error message instead. Can any of you help me locate the error in the following source code for the page that I'm running in IE 6? sub cb_finalize dim ll_loop, ll_found, lobj_c_selected of_SetHourGlass(True) rpt_link.innerHTML = "" rpt_link.href = "" 'Process only if at least one record was selected if rds1.Recordset.Recordcount 0 then lb_found = false if rds1.Recordset.Recordcount = 1 then if c_selected.checked then lb_found = true else Set lobj_c_selected = document.all.item("c_selected") for ll_loop = 1 to rds1.Recordset.Recordcount if lobj_c_selected(ll_loop - 1).checked then lb_found = true exit for end if next end if if not lb_found then msgbox "Please select a record to be posted.", vbInformation, "ProStage Accounting" of_SetHourGlass(False) else window.setTimeout "ue_process()", 100, vbscript 'Post Event end if else msgbox "There's no record to be posted." + vbcrlf + "Please select a record to be posted.", vbInformation, "ProStage Accounting" of_SetHourGlass(False) end if end sub Sub ue_process dim ll_loop, ll_count, ls_ret, ls_trxid, ls_r1 'Get only selected records redim ls_trxid(rds1.Recordset.Recordcount) for ll_loop = 1 to rds1.Recordset.Recordcount rds1.Recordset.AbsolutePosition = ll_loop if not isnull(rds1.Recordset("clrdt")) then 'Add to TRXID array if selected ll_count = ll_count + 1 ls_trxid(ll_count) = rds1.Recordset("trxid") end if next 'Process reconciliation rds1.Recordset.MarshalOptions = 1 ls_ret = iBO_Update.of_update_1(is_dbsrc, rds1.Recordset, "GLTRX", is_sql) if ls_ret < "1" then msgbox "Update Failed ! " + ls_ret, vbExclamation + vbOKonly, document.title of_SetHourGlass(False) else 'Display Posting Journal & clear screen ue_posting_journal ls_trxid, ll_count Set rds1.SourceRecordset = iBO_Company.of_validate(is_dbsrc, "SELECT 1 FROM DUAL WHERE 1 = 2") ib_query = false 'Not to process RetrieveEnd end if End Sub Sub ue_posting_journal(as_trxid, al_count) dim ll_argseq, ls_argtyp, ls_argmnt, ll_sargseq of_setreport() ' Start service 'Prepare arguments for report in RPTMSTR table for ll_loop = 1 to al_count + 1 select case ll_loop case 1 'Range displayed as report title ll_argseq = 800 ls_argtyp = null ls_argmnt = "st_title.text = 'Bank: " + bnkid_name.value + ", As of Date: " + _ of_date_stringtodate(id_trxdt) + "'" ll_sargseq = 0 case else 'TRXID array ll_argseq = 1 ll_sargseq = ll_loop - 1 ls_argtyp = "S" ls_argmnt = as_trxid(ll_loop - 1) end select of_report_register_array "d_rpt_ap_check_reconciliation_register", ll_argseq, ls_argtyp, ls_argmnt, ll_sargseq next of_report_process "d_rpt_ap_check_reconciliation_register", true, true 'Display report of_sethourglass(False) End Sub

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  • Problem draw line by Quartz 2D with alpha property < 1.0 on iPhone

    - by The Khanh
    Hello Everybody ! This code i use to draw in my app. So i have problem, if i draw with alpha property = 1. It is very good but if i change alpha property = 0.2 then my paint is not good. How do i make for better with alpha property = 0.2. http://www.flickr.com/photos/9601621@N05/page1/ Draw with alpha = 1: It is good Draw with alpha = 0.2: It is bad - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { if ([self.view superview] && (headerView.frame.origin.y == -30)) { mouseSwiped = YES; UITouch *touch = [touches anyObject]; CGPoint currentPoint = [touch locationInView:self.view]; currentPoint.y -= 20; UIGraphicsBeginImageContext(self.view.frame.size); CGContextRef context = UIGraphicsGetCurrentContext(); [drawImage.image drawInRect:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)]; CGContextSetLineCap(context, kCGLineCapRound); CGContextSetLineWidth(context, currentBrushProperty.brushSize); CGContextSetRGBStrokeColor(context, [self red], [self green], [self blue], currentBrushProperty.brushTransparency); CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0); CGContextBeginPath(context); CGContextMoveToPoint(context, lastPoint.x, lastPoint.y); CGContextAddLineToPoint(context, currentPoint.x, currentPoint.y); CGContextStrokePath(context); drawImage.image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); lastPoint = currentPoint; }} Help me, please.

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  • FTP FileWatcher

    - by Meiscooldude
    So, I am in this little predicament where I am stuck watching a few ftp folders to see if they have new files added to them. If they do, it needs to throw an event with the file name. Thereby telling something else to download that file. This is a pretty simple object to make, I was just curious if anyone knew how expensive this operation would be? I plan on using the command NLIST because I don't need file size information, and there will be no sub-directories in the folder. Each file in the folder will have exactly 25 characters in its name. There could be anywhere from 10 to 'maybe' a couple thousand (max around 2000) files per folder (usually on the lower end, 100-300, but currently growing). The files are anywhere from 250kb to a very VERY unlikely 10mb (usually within the 250kb to 4mb range). There possibly could be up to a few hundred folders (in which case I could change the watch frequency depending on number of folders), but currently there are only a few (6-10ish). There also would be multiple logins for the ftp server, different logins would have access to different folders. I am not asking for an implementation, just if anyone has some first or second hand knowledge about FTP, how could this affect my network. I am not opposed to putting in file retention times or change the frequency in which I check for new files.

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  • Collecting high-volume video viewing data

    - by DanK
    I want to add tracking to our Flash-based media player so that we can provide analytics that show what sections of videos are being watched (at the moment, we just register a view when a video starts playing) For example, if a viewer watches the first 30 seconds of a video and then clicks away to something else, we want the data to reflect that. Likewise, if someone watches the first 10 seconds, then scrubs the timeline to the last minute of the video and watches that, we want to register viewing on the parts watched and not the middle section. My first thought was to collect up the viewing data in the player and send it all to the server at the end of a viewing session. Unfortunately, Flash does not seem to have an event that you can hook into when a viewer clicks away from the page the movie is on (probably a good thing - it would be open to abuse) So, it looks like we're going to have to make regular requests to the server as the video is playing. This is obviously going to lead to a high volume of requests when there are large numbers of simultaneous viewers. The simple approach of dumping all these 'heartbeat' events from clients to a database feels like it will quickly become unmanageable so I'm wondering whether I should be taking an approach where viewing sessions are cached in memory and flushed to database when they become inactive (based on a timeout). That way, the data could be stored as time spans rather than individual heartbeats. So, to the question - what is the best way to approach dealing with this kind of high-volume viewing data? Are there any good existing architectures/patterns? Thanks, Dan.

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  • How to TDD Asynchronous Events?

    - by Padu Merloti
    The fundamental question is how do I create a unit test that needs to call a method, wait for an event to happen on the tested class and then call another method (the one that we actually want to test)? Here's the scenario if you have time to read further: I'm developing an application that has to control a piece of hardware. In order to avoid dependency from hardware availability, when I create my object I specify that we are running in test mode. When that happens, the class that is being tested creates the appropriate driver hierarchy (in this case a thin mock layer of hardware drivers). Imagine that the class in question is an Elevator and I want to test the method that gives me the floor number that the elevator is. Here is how my fictitious test looks like right now: [TestMethod] public void TestGetCurrentFloor() { var elevator = new Elevator(Elevator.Environment.Offline); elevator.ElevatorArrivedOnFloor += TestElevatorArrived; elevator.GoToFloor(5); //Here's where I'm getting lost... I could block //until TestElevatorArrived gives me a signal, but //I'm not sure it's the best way int floor = elevator.GetCurrentFloor(); Assert.AreEqual(floor, 5); } Edit: Thanks for all the answers. This is how I ended up implementing it: [TestMethod] public void TestGetCurrentFloor() { var elevator = new Elevator(Elevator.Environment.Offline); elevator.ElevatorArrivedOnFloor += (s, e) => { Monitor.Pulse(this); }; lock (this) { elevator.GoToFloor(5); if (!Monitor.Wait(this, Timeout)) Assert.Fail("Elevator did not reach destination in time"); int floor = elevator.GetCurrentFloor(); Assert.AreEqual(floor, 5); } }

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  • MVVM pattern: ViewModel updates after Model server roundtrip

    - by Pavel Savara
    I have stateless services and anemic domain objects on server side. Model between server and client is POCO DTO. The client should become MVVM. The model could be graph of about 100 instances of 20 different classes. The client editor contains diverse tab-pages all of them live-connected to model/viewmodel. My problem is how to propagate changes after server round-trip nice way. It's quite easy to propagate changes from ViewModel to DTO. For way back it would be possible to throw away old DTO and replace it whole with new one, but it will cause lot of redrawing for lists/DataTemplates. I could gather the server side changes and transmit them to client side. But the names of fields changed would be domain/DTO specific, not ViewModel specific. And the mapping seems nontrivial to me. If I should do it imperative way after round-trip, it would break SOC/modularity of viewModels. I'm thinking about some kind of mapping rule engine, something like automappper or emit mapper. But it solves just very plain use-cases. I don't see how it would map/propagate/convert adding items to list or removal. How to identify instances in collections so it could merge values to existing instances. As well it should propagate validation/error info. Maybe I should implement INotifyPropertyChanged on DTO and try to replay server side events on it ? And then bind ViewModel to it ? Would binding solve the problems with collection merges nice way ? Is EventAgregator from PRISM useful for that ? Is there any event record-replay component ? Is there better client side pattern for architecture with server side logic ?

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  • passing values between forms (winforms)

    - by dnkira
    Hello. Vierd behaviar when passing values to and from 2nd form. ParameterForm pf = new ParameterForm(testString); works ParameterForm pf = new ParameterForm(); pf.testString="test"; doesn't (testString defined as public string) maybe i'm missing something? anyway i'd like to make 2nd variant work properly, as for now - it returns null object reference error. thanks for help. posting more code here: calling Button ParametersButton = new Button(); ParametersButton.Click += delegate { ParameterForm pf = new ParameterForm(doc.GetElementById(ParametersButton.Tag.ToString())); pf.ShowDialog(this); pf.test = "test"; pf.Submit += new ParameterForm.ParameterSubmitResult(pf_Submit); }; definition and use public partial class ParameterForm : Form { public string test; public XmlElement node; public delegate void ParameterSubmitResult(object sender, XmlElement e); public event ParameterSubmitResult Submit; public void SubmitButton_Click(object sender, EventArgs e) { Submit(this,this.node); Debug.WriteLine(test); } } result: Submit - null object reference test - null object reference

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  • How do I simulate the usage of a sequence of web pages?

    - by Rory Becker
    I have a simple sequence of web pages written in ASP.Net 3.5 SP1. Page1 - A Logon Form.... txtUsername, txtPassword and cmdLogon Page2 - A Menu (created using DevExpress ASP.Net controls) Page3 - The page redirected to by the server in the event that the user picks the right menu option in Page2 I would like to create a threaded program to simulate many users trying to use this sequence of pages. I have managed to create a host Winforms app which Launches a new thread for each "User" I have further managed to work out the basics of WebRequest enough to perform a request which retrieves the Logon page itself. Dim Request As HttpWebRequest = TryCast(WebRequest.Create("http://MyURL/Logon.aspx"), HttpWebRequest) Dim Response As HttpWebResponse = TryCast(Request.GetResponse(), HttpWebResponse) Dim ResponseStream As StreamReader = New StreamReader(Response.GetResponseStream(), Encoding.GetEncoding(1252)) Dim HTMLResponse As String = ResponseStream.ReadToEnd() Response.Close() ResponseStream.Close() Next I need to simulate the user having entered information into the 2 TextBoxes and pressing logon.... I have a hunch this requires me to add the right sort of "PostData" to the request. before submitting. However I'm also concerned that "ViewState" may be an issue. Am I correct regarding the PostData? How do I add the postData to the request? Do I need to be concerned about Viewstate? Update: While I appreciate that Selenium or similar products are useful for acceptance testing , I find that they are rather clumsy for what amounts to load testing. I would prefer not to load 100 instances of Firefox or IE in order to simulate 100 users hitting my site. This was the reason I was hoping to take the ASPNet HttpWebRequest route.

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  • Monitoring all events in a class and sub-classes

    - by Basiclife
    Hi, I wonder if someone can help me. I've got a console App which I use to debug various components as I develop them. I'd like to be able to log to the console every time an event is fired either in the object I've instantiated or in anything it's instantiated [ad infinitum]. I wouldn't see some of these events normally due to them being consumed further down the chain). Ideally I would be able to log all public and private events but if only public are possible, I can live with that. I've Googled and all I can find is how to monitor a directory - So I'm not sure if this is not possible or simply has a name that I don't know. The sort of information I'm after is similar to what's found in an exception - Target Site, Source, Stack Trace, etc... Could I perhaps do this through reflection somehow? If someone could tell me if this is even possible and perhaps point me at some good resources, I'd be very grateful. Many thanks Basic To Give you an idea of the console App: Sub Main() Container = ContainerGenerate.GenerateContainer() Dim TemplateID As New Guid("5959b961-b347-46bc-b1b6-cba311304f43") Dim Templater = Container.Resolve(Of Interfaces.Mail.IMailGenerator)() Dim MyMessage = Templater.GenerateMail(TemplateID, Nothing, Nothing) Dim MySMTPClient = Container.Resolve(Of SmtpClient)() MySMTPClient.Send(MyMessage) Finish() End Sub

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  • How to hide some nodes in Richfaces Tree (do not render nodes by condition)?

    - by VestniK
    I have a tree of categories and courses in my SEAM application. Courses may be active and inactive. I want to be able to show only active or all courses in my tree. I've decided to always build complete tree in my PAGE scope component since building this tree is quite expensive operation. I have boolean flag courseActive in the data wrapped by TreeNode<T>. Now I can't find the way to show courses node only if this flag is true. The best result I've achieved with the following code: <h:outputLabel for="showInactiveCheckbox" value="show all courses: "/> <h:selectBooleanCheckbox id="showInactiveCheckbox" value="#{categoryTreeEditorModel.showAllCoursesInTree}"> <a4j:support event="onchange" reRender="categoryTree"/> </h:selectBooleanCheckbox> <rich:tree id="categoryTree" value="#{categoryTree}" var="item" switchType="ajax" ajaxSubmitSelection="true" reRender="categoryTree,controls" adviseNodeOpened="#{categoryTreeActions.adviseRootOpened}" nodeSelectListener="#{categoryTreeActions.processSelection}" nodeFace="#{item.typeName}"> <rich:treeNode type="Category" icon="..." iconLeaf="..."> <h:outputText value="#{item.title}"/> </rich:treeNode> <rich:treeNode type="Course" icon="..." iconLeaf="..." rendered="#{item.courseActive or categoryTreeEditorModel.showAllCoursesInTree}"> <h:outputText rendered="#{item.courseActive}" value="#{item.title}"/> <h:outputText rendered="#{not item.courseActive}" value="#{item.title}" style="color:#{a4jSkin.inactiveTextColor}"/> </rich:treeNode> </rich:tree> the only problem is if some node is not listed in any rich:treeNode it just still shown with title obtained by Object.toString() method insted of being hidden. Does anybody know how to not show some nodes in the Richfases tree according to some condition?

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  • Playing Multiple sounds at the same time in Android

    - by Wrapper
    I am unable to use the following to code to play multiple sounds/beeps simultaneously. In my onclicklistener I have added ... public void onClick(View v) { mSoundManager.playSound(1); mSoundManager.playSound(2); } ... But this plays only one sound at a time, sound with index 1 followed by sound with index 2. How can I play atleast 2 sounds simultaneously using this code whenever there is an onClick() event? public class SoundManager { private SoundPool mSoundPool; private HashMap<Integer, Integer> mSoundPoolMap; private AudioManager mAudioManager; private Context mContext; public SoundManager() { } public void initSounds(Context theContext) { mContext = theContext; mSoundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 0); mSoundPoolMap = new HashMap<Integer, Integer>(); mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE); } public void addSound(int Index,int SoundID) { mSoundPoolMap.put(1, mSoundPool.load(mContext, SoundID, 1)); } public void playSound(int index) { int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC); mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, 0, 1f); } public void playLoopedSound(int index) { int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC); mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, -1, 1f); } }

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  • is there an equivalent of a trigger for general stored procedure execution on sql server

    - by Arj
    Hi All, Hope you can help. Is there a way to detect when a stored proc is being run on SQL Server without altering the SP itself? Here's the requirement. We need to track users running reports from our enterprise data warehouse as the core product we use doesn't allow for this. Both core product reports and a slew of in-house ones we've added all return their data from individual stored procs. We don't have a practical way of altering the parts of the product webpages where reports are called from. We also can't change the stored procs for the core product reports. (It would be trivial to add a logging line to the start/end of each of our inhouse ones). What I'm trying to find therefore, is whether there's a way in SQL Server (2005 / 2008) to execute a logging stored proc whenever any other stored procedure runs, without altering those stored procedures themselves. We have general control over the SQL Server instance itself as it's local, we just don't want to change the product stored procs themselves. Any one have any ideas? Is there a kind of "stored proc executing trigger"? Is there an event model for SQL Server that we can hook custom .Net code into? (Just to discount it from the start, we want to try and make a change to SQL Server rather than get into capturing the report being run from the products webpages etc) Thoughts appreciated Thanks

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  • Javascript conversion, from Prototype to jQuery

    - by moshimoshi
    Hi, I would like to update the following javascript code based on Prototype framework to jQuery framework: Event.observe(window, 'load', function() { $$('.piece').each(function(item) { new Draggable(item, { revert: true } ); }); $$('.cell').each(function(item) { Droppables.add(item, { accept: 'piece', onDrop: function(piece, cell) { cell.descendants().each(function(item) { item.remove(); } ); piece.remove(); piece.setStyle({ 'top': null, 'left': null }); new Draggable(piece, { revert: true }); cell.appendChild(piece); } }); }); }); The first part of the script is easy to convert: $(function() { $('.piece').draggable( { evert: true } ); $('.cell').droppable( { /* But here, it's more difficult. Right? ;) ... */ } }); }); Have you got an idea? Any part of code is welcome. Thanks a lot.

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  • Phonegap bluetooth plugin not working

    - by user2907333
    First time poster here , so I'm sorry if this question is asked incorrect or if there are any issues. I'm working on a phonegap app for which I need to be able to set up a bluetooth connection between a tablet (android in this case) and a Win CE PC. Currently i'm trying to get the bluetooth part to work on the tablet and i'm using the plug in you can find at https://github.com/tanelih/phonegap-bluetooth-plugin And for the momemt I'm just trying to enable and disable the Bluetooth on the device. In my bluetoothpage.js file i'm using the following method window.bluetooth.prototype.enable(bluetoothTestSucces(),bluetoothTestFail()); The bluetoothTestSucces and bluetoothTestFail functions just show an alert, nothing else. And if i understand the working of phonegap plugins correctly this uses the following code in my bluetooth.js file Bluetooth.prototype.enable = function(onSuccess, onError) { exec(onSuccess, onError, "Bluetooth", "enable", []); } which calls private void enable(JSONArray args, CallbackContext callbackCtx) { try { _bluetooth.enable(); callbackCtx.success(); } catch(Exception e) { this.error(callbackCtx, e.getMessage(), BluetoothError.ERR_UNKNOWN); } } in my BluetoothPlugin.java file. And if the java file returns Succes bluetoothTestSucces() is used and if the java file returns an error bluetoothTestFail() is used. But for some reason it runs both and does not turn on bluetooth on my device. I'm almost certain I've forgotten a link to a file or have linked it wrong somewhere. But I've followed the instructions that were included in the plugin. I've included the Bluetooth permission in my AndoridManifest file which is located in the root directory of my app I've included the plugin in my config.xml file which is located in res/xml I've required the plugin after the deviceready event as follows document.addEventListener("deviceready", onDeviceReady, false); function onDeviceReady() { window.bluetooth = cordova.require("cordova/plugin/bluetooth"); } Could anyone tell me how to fix this or what i've done wrong? thanks Martijn PS: I'm sorry for any language errors, English isn't my native language. edit: forgot to include some code

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  • UI Automation Button Style Enabled

    - by Victor Gaspar
    Hi, I'm evaluating UI Automation for UI testing for that I have a WPF application with the following button defined: <Button Style="{DynamicResource ButtonStyle}" x:Name="MyBtn"/> when I need to visually disable the button I just change the style so the user is aware that the button is disabled (the colour changed) but still the button is internally enabled so I can still launch the OnClick event in order to show a message when the user clicks on a "disabled" button. Now the problem is that I don't know how to check from UI Automation the Style that its currently applied i.e. if the button is disabled or enabled. Do you know how can I do that? In a normal situation I should do something like that: Automation.Condition cEBtn = new PropertyCondition(AutomationElement.AutomationIdProperty, "MyBtn"); AutomationElement mybtnElement = appRegraceElement.FindFirst(TreeScope.Children, cEBtn); bool disMyBtn = (bool)mybtnElement .GetCurrentPropertyValue(AutomationElement.IsEnabledProperty); but in my case the button is always enabled therefore I need to check the Style applied to the button. Thank you very much. Best regards

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  • JQuery - Sticky sidebar not working in Firefox

    - by user1473358
    I'm working on a site with a Sticky sidebar (fixed position under certain conditions, etc) that is working fine in Chrome & Safari, but breaks in Firefox. I'm not sure what the issue is since I didn't write the script: $(document).ready(function() { /* var defaults = { containerID: 'toTop', // fading element id containerHoverID: 'toTopHover', // fading element hover id scrollSpeed: 1200, easingType: 'linear' }; */ $().UItoTop({ easingType: 'easeOutQuart' }); if (!!$('.sticky').offset()) { // make sure ".sticky" element exists var stickyTop = $('.sticky').offset().top; // returns number var newsTop = $('#news_single').offset().top; // returns number $(window).scroll(function(){ // scroll event var windowTop = $(window).scrollTop(); // returns number var width = $(window).width(); var height = $(window).height(); if (stickyTop < windowTop && width > 960 && height > 450){ $('.sticky').css({ position: 'fixed', top: 40 }); $('#news_single').css({ left: 230 }); } else { $('.sticky').css('position','static'); $('#news_single').css({ left: 0 }); } }); } }); Here's the site (the sidebar in question is the one with the red header, to the left): http://www.parisgaa.org/parisgaels/this-is-a-heading-too-a-longer-one I'd appreciate any help with this.

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  • How to copy x and y coordinate from one Flex component to another

    - by Tam
    Hi, I would like to base one component's x and y cooridnates according to another, I tried using the binding notation but it doesn't seem to work! <?xml version="1.0" encoding="utf-8"?> <s:VGroup xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" xmlns:vld ="com.lal.validators.*" xmlns:effect="com.lal.effects.*" xmlns:components="com.lal.components.*" width="400" height="100%" right="0" horizontalAlign="right" verticalCenter="0"> ...... <s:VGroup width="125" height="100%" horizontalAlign="right" gap="0" width.normal="153" x.normal="247" width.expanded="199" x.expanded="201"> ...... <s:Panel includeIn="expanded" id="buttonsGroup" mouseOut="changeStateToNormal();" mouseOver="stopChangeToNormal();" skinClass="com.lal.skins.TitlelessPanel" title="hi" right="0" width="125" height="700" > ..... <s:Label text="Jump To Date" paddingTop="20" /> <s:TextInput id="wholeDate" width="100" mouseOver="stopChangeToNormal();" click="date1.visible = true" focusOut="date1.visible = false"/> ... </s:Panel> </s:VGroup> <mx:DateChooser id="date1" change="useDate(event); this.visible = false; " visible="false" mouseOver="stopChangeToNormal();" y="{wholeDate.y}" x="{wholeDate.x}" /> </s:VGroup>

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  • Custom model validation of dependent properties using Data Annotations

    - by Darin Dimitrov
    Since now I've used the excellent FluentValidation library to validate my model classes. In web applications I use it in conjunction with the jquery.validate plugin to perform client side validation as well. One drawback is that much of the validation logic is repeated on the client side and is no longer centralized at a single place. For this reason I'm looking for an alternative. There are many examples out there showing the usage of data annotations to perform model validation. It looks very promising. One thing I couldn't find out is how to validate a property that depends on another property value. Let's take for example the following model: public class Event { [Required] public DateTime? StartDate { get; set; } [Required] public DateTime? EndDate { get; set; } } I would like to ensure that EndDate is greater than StartDate. I could write a custom validation attribute extending ValidationAttribute in order to perform custom validation logic. Unfortunately I couldn't find a way to obtain the model instance: public class CustomValidationAttribute : ValidationAttribute { public override bool IsValid(object value) { // value represents the property value on which this attribute is applied // but how to obtain the object instance to which this property belongs? return true; } } I found that the CustomValidationAttribute seems to do the job because it has this ValidationContext property that contains the object instance being validated. Unfortunately this attribute has been added only in .NET 4.0. So my question is: can I achieve the same functionality in .NET 3.5 SP1? UPDATE: It seems that FluentValidation already supports clientside validation and metadata in ASP.NET MVC 2. Still it would be good to know though if data annotations could be used to validate dependent properties.

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