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  • WinForms form freezes

    - by andrew
    On a form (F1) i have a button, from which if i create another form (lets call it F2) and show it there's no problem but i'd like to do something like this Some thread in my app is running a connection and listens for messages from a server. when a message arrives, my main form is registered to get an event that runs a function. From that function i'm trying to create and show the F2 type form (empty, nothing modified in it): it shows it but then it freezes my application. more exactly: public partial class Form1 : Form { public Form1() { InitializeComponent(); ConnectionManagerThread.getResponseListener().MessageReceived += Form1_OnMessageReceived; } private void Form1_OnMessageReceived(object sender, MessageEventArgs e) { Form2 f2 = new Form2(); f2.Show(); } }

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  • WPF: KeyboardNavigationMode.Contained doesn't work to suppress focus wrap

    - by codymanix
    I want to navigate in my window with the arrow key. It works so far but if I reach the end of my window, focus wraps to the first main menu item. But I want that focus stops at the last control in my window. private void Window_PreviewKeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.Down) { elem.MoveFocus(FocusNavigationDirection.Next); } } "elem" is indirect child control of "stackPanel". MoveFocus always returns true and I already tried: KeyboardNavigation.SetTabNavigation(stackPanel, KeyboardNavigationMode.Contained); KeyboardNavigation.SetDirectionalNavigation(stackPanel,KeyboardNavigationMode.Contained); KeyboardNavigation.SetControlTabNavigation(stackPanel, KeyboardNavigationMode.Contained); Nothing helped.

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  • pass other value than #VALX and #VALY in postback of series to get value on chart click event

    - by rahularyansharma
    I am using asp.net chart control and i want to use chart click event to get the deptId value of bar click in bar chart . <Series> <asp:Series Name="Tour" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> <asp:Series Name="Inspection" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> <asp:Series Name="NightHalt" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> </Series> I am using department name to show on X axis but i want to capture deptid on chart click event . In above markup i use #VALX in series postback event but its give me deptname in click event protected void AllDepartmentComparisonBarChart_Click(object sender, ImageMapEventArgs e) { e.PostBackValue; }

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  • strongly typed dataset Insert record with C# problem

    - by Eyla
    Greetings, I'm using strongly typed data-set in windows application and I'm creating table adapter object to call insert function. The problem that there is nothing inserted to the table after calling the function and no error produced. here is my code: public PacketsDBDataSet1TableAdapters.packetsTableAdapter ds = new PacketsDBDataSet1TableAdapters.packetsTableAdapter(); private void btnSavePacketsInFile_Click(object sender, EventArgs e) { byte[] w = null; ds.InsertPackets("s", "s", "s", "s", "s", w); } I'm using same same code with ASP.Net but it is working OK. any advice??

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  • Not able to capture Enter key in WinForms text box

    - by Michael Hermes
    When the user is entering a number into a text box, I would like them to be able to press Enter and simulate pressing an Update button elsewhere on the form. I have looked this up several places online, and this seems to be the code I want, but it's not working. When data has been put in the text box and Enter is pressed, all I get is a ding. What am I doing wrong? (Visual Studio 2008) private void tbxMod_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { btnMod.PerformClick(); } }

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  • NSNotificationCenter and ASIHTTPRequest

    - by user262325
    Hello everyone: I hope to get the http header info(file size) in asynchronous mode. So I initialize as codes: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(processReadResponseHeaders:) name:@"readResponseHeaders" object:nil]; my codes to read the http header -(void)processReadResponseHeaders: (ASIHTTPRequest *)request ;//(id)sender; { unsigned long long contentLength = [request contentLength]; //error occurs here } It has to change the source code of ASIHTTPRequest.m I did add my codes in function readResponseHeaders to notify the event is triggered ) - (void)readResponseHeaders { //......................... [[NSNotificationCenter defaultCenter] postNotificationName:@"readResponseHeaders" object:self];// } the log file reports: 2010-05-15 13:47:38.034 myapp[2187:6a63] * -[NSConcreteNotification contentLength]: unrecognized selector sent to instance 0x46e5bb0 Welcome any comment Thanks interdev

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  • how to get linkbutton id that is genrated dynamically from code behind in the eventhandler

    - by Ranjana
    i have create two linkbuttons dynamically: for (int i = 0; i < 2; i++) { LinkButton lb = new LinkButton(); lb.ID = "lnk" + FileName; lb.Text = FileName; Session["file"] = FileName; lb.CommandArgument = FileName; lb.Click += new EventHandler(Lb_Click); Panel1.Controls.Add(lb); Panel1.Controls.Add(new LiteralControl("<br />")); } i have got two links namely: File11 File22 void Lb_Click(object sender, EventArgs e) { string id=lb.ID; i.e //--Here how to get link button id which is clicked (either File11 id or File22 id)-------------------- }

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  • NAudio: How can I get a event that tells me that the MP3 file reached the end?

    - by Rookian
    I tried to use this: private void CreateDevice() { _playbackDevice = new WaveOut(); _playbackDevice.PlaybackStopped += PlaybackDevicePlaybackStopped; } void PlaybackDevicePlaybackStopped(object sender, EventArgs e) { if (OnPlaybackStopped != null) { OnPlaybackStopped(this, e); } } But it never invoked. Then I tried to use the PlaybackState: public PlaybackState PlaybackState { get { if (_playbackDevice == null) return default(PlaybackState); return _playbackDevice.PlaybackState; } } But when the song ends it does not change to "stopped". But when I call Stopped it changes correctly. Can someone help me?

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  • How can I set up .Net unhanlded exception handling in a windows service?

    - by Mike Pateras
    protected override void OnStart(string[] args) { AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Thread.Sleep(10000); throw new Exception(); } void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e) { } I attached a debugger to the above code in my windows service, setting a breakpoint in CurrentDomain_UnhandledException, but it was never hit. The exception pops up saying that it is unhandled, and then the service stops. I even tried putting some code in the event handler, in case it was getting optimized away. Is this not the proper way to set up unhandled exception handling in a windows service?

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  • How to mimic SMPP connection

    - by vijay.shad
    Hi, I have a situation. My application is sending multiple SMSes to end client this number varies from 50000 to 100000 SMSes at any point of time. To achieve this functionality i am using Kannel as sms sender interface. So My solution is complete. But only in development environment! Before going to be in production I supposed to do a testing of this solution environment. Is there any suggestion to created a testing environment? To give more input to my environment; kannel is using an smpp connection to deliver messages to end client. So, I think i need to mimic some smpp server for kannel.

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  • Event handler of Dropdownlist inside Gridview

    - by hotcoder
    I've added Dropdownlist in Gridview at RowDataBound event. The code is: if (e.Row.RowType == DataControlRowType.DataRow) { DropDownList ddlSeason = new DropDownList(); ddlSeason.DataSourceID = "odsRoomSeason"; ddlSeason.DataTextField = "SeasonTittle"; ddlSeason.DataValueField = "SeasonID"; ddlSeason.AutoPostBack = true; ddlSeason.SelectedIndexChanged += new EventHandler(ddlSeason_SelectedIndexChanged); TableCell tcSeason= new TableCell(); tcSeason.Controls.Add(ddlSeason); e.Row.Cells.AddAt(e.Row.Cells.Count, tcSeason); } The event handler I've added is: protected void ddlSeason_SelectedIndexChanged(object sender, EventArgs e) { // } But the problem is that the event handler function doesn't catch the event. Please tell me how to write the correct event handler, also I need to get the row from which the Dropdownlist's event has fired.

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  • Trying to inherit variable "text" from Form 1 for use in Form 2????

    - by JB
    I have a Form 1 as listed below, im trying to inherit the variable text from it so i can compare is value in an if statement so i can output the file specified for that id number in Form 2...is this possible??? Form 1, where variable is being used: public void button2_Click(object sender, System.EventArgs e) { timer1.Enabled = true; string text = textBox1.Text; Mainform = this; this.Hide(); } Form 2 where im trying to use the variable: if (text == "900456318") { System.Diagnostics.Process.Start("C:\\Users\\Joshua Banks\\Desktop\\Downtown_atlanta_night"); } }

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  • how can retrieve a checked list of objects from ObjectListView c#?

    - by Sidaoui Mejdi
    I'm using ObjectListView with checkboxes, I would like to run a function on selected items to delete them. So i tried this Method but it not working: private List<Matricule> matrs; private void button1_Click(object sender, EventArgs e) { //List<Song> s = this.olvSongs.CheckedObjects.Count; //MessageBox.Show(this.olvSongs.CheckedItems.Count + " " + this.olvSongs.CheckedObjects.Count); string s = ""; foreach (var item in olvMatrs.SelectedItems) { matrs.Remove((Matricule)item); } this.olvSongs.SetObjects(matrs); } how can i do this task.

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  • Finding the TextBlock that is part of the default control template ComboBox generated through code.

    - by uriya
    I'm trying to find the TextBlock that is inside the control template of a comboBox. using VisualTreeHelpar.GetChildrenCount is working only if the comboBox is declared in XAML.In that case GetChildrenCount returns 1 and a recursive search is possible. However, if I declare the combo as a member of the Window class using code, allocated and setting it to its place, the function GetChildrenCount return 0. When I run snoop in this scenario It shows the combo children hierarchy. I want to be able to search the comboBox just as snoop does. Any help would be appreciated. code: ComboBox mCombo = null; private void Windows_Loaded(object sender, RoutedEventArgs e) { mCombo = new ComboBox; mGrid.Children.Add(mCombo); Grid.SetRow(mCombo,0); int count = VisualTreeHelpar.GetChildrenCount(mCombo); }

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  • Get logical path from treeview which has HierarchicalDataTemplate

    - by phenevo
    Hi, I have a structure of geography objects: Country Areas, Provinces, Cities and Hotels Country has regions, regions provinces etc... Whne I'll click City node I wanna to get logical path eg: France,Provanse,SomeProvince,Montpellier,Coral Hotel. Each class has fields: name, code nad listOf... Treeview works great, but this method not: private void structureTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e) { if (structureTree.SelectedItem is Hotel) { objectCode = ((Hotel)structureTree.SelectedItem).Code; TreeViewItem item = e.OriginalSource as TreeViewItem; DependencyObject parent = VisualTreeHelper.GetParent(item); dlgEditHotel(objectCode, structureTree.Parent.ToString()); } }

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  • Using Recaptcha with EPiServer XForms

    - by Andy
    Hi, Does any one have experiense of using Recaptcha with XForms in EPiServer? I don't know where to put the Recaptcha control and how to make it work. The sample code for ASP.NET is the code below. Where should i put it. My guess is in the FormControl_BeforeSubmitPostedData? <%@ Page Language="VB" % <%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" % Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) If Page.IsValid Then lblResult.Text = "You Got It!" lblResult.ForeColor = Drawing.Color.Green Else lblResult.Text = "Incorrect" lblResult.ForeColor = Drawing.Color.Red End If End Sub

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  • Problem passing ELMAH log id to Custom Error page in ASP.NET

    - by Ronnie Overby
    I am using ELMAH to log unhandled exceptions in an ASP.NET Webforms application. Logging is working fine. I want to pass the ELMAH error log id to a custom error page that will give the user the ability to email an administrator about the error. I have followed the advice from this answer. Here is my global.asax code: void ErrorLog_Logged(object sender, ErrorLoggedEventArgs args) { Session[StateKeys.ElmahLogId] = args.Entry.Id; // this doesn't work either: // HttpContext.Current.Items[StateKeys.ElmahLogId] = args.Entry.Id; } But, on the Custom error page, the session variable reference and HttpContext.Current.Items are giving me a NullReference exception. How can I pass the ID to my custom error page?

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  • .NET WPF Application : Loading a resourced .XPS document

    - by contactmatt
    I'm trying to load a .xps document into a DocumentViewer object in my WPF application. Everything works fine, except when I try loading a resourced .xps document. I am able to load the .xps document fine when using an absolute path, but when I try loading a resourced document it throws a "DirectoryNotFoundException" Here's an example of my code that loads the document. using System.Windows.Xps.Packaging; private void Window_Loaded(object sender, RoutedEventArgs e) { //Absolute Path works (below) //var xpsDocument = new XpsDocument(@"C:\Users\..\Visual Studio 2008\Projects\MyProject\MyProject\Docs\MyDocument.xps", FileAccess.Read); //Resource Path doesn't work (below) var xpsDocument = new XpsDocument(@"\MyProject;component/Docs/Mydocument.xps", FileAccess.Read); DocumentViewer.Document = xpsDocument.GetFixedDocumentSequence(); } When the DirectoryNotFoundException is thrown, it says "Could not find a part of the path : 'C:\MyProject;component\Docs\MyDocument.xps' It appears that it is trying to grab the .xps document from that path, as if it were an actual path on the computer, and not trying to grab from the .xps that is stored as a resource within the application.

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  • autopostback problem listbox asp.net

    - by lodun
    I want to add posts(question) like i do that on yahoo answers.When i choose item in "kategorije" control,items can't be loaded in "SUB_kategorije" control. Image My new ascx.cs: 1. protected void Page_Load(object sender, EventArgs e) 2. { 3. 4. 5. if (!Page.IsPostBack) 6. { 7. 8. SqlDataSource ds = new SqlDataSource(); 9. ds.ConnectionString = conn; 10. ds.SelectCommand = "SELECT [ID], [Kategorije] FROM [kategorije] "; 11. kategorije.DataSource = ds; 12. kategorije.DataTextField = "Kategorije"; 13. kategorije.DataValueField = "ID"; 14. kategorije.DataBind(); 15. kategorije.SelectedIndex = 1; 16. 17. SqlDataSource dk = new SqlDataSource(); 18. dk.ConnectionString = conn; 19. dk.SelectCommand = "SELECT * from pod_kategorije WHERE kat_id = " + kategorije.SelectedItem.Value; 20. SUB_kategorije.DataSource = dk; 21. SUB_kategorije.DataTextField = "pkategorija"; 22. SUB_kategorije.DataValueField = "ID"; 23. SUB_kategorije.DataBind(); 24. 25. 26. } 27. 28. 29. 30. 31. } 32. protected void kategorije_SelectedIndexChanged(object sender, EventArgs e) 33. { 34. 35. 36. SqlDataSource dk = new SqlDataSource(); 37. dk.ConnectionString = conn; 38. dk.SelectCommand = "SELECT * from pod_kategorije WHERE [kat_id] = " + kategorije.SelectedItem.Value; 39. SUB_kategorije.DataSource = dk; 40. SUB_kategorije.DataTextField = "pkategorija"; 41. SUB_kategorije.DataValueField = "ID"; 42. SUB_kategorije.DataBind(); 43. 44. 45. } and .ascx: 1. <asp:ListBox ID="kategorije" runat="server" Height="380px" CssClass="kat" AutoPostBack="true" 2. 3. onselectedindexchanged="kategorije_SelectedIndexChanged"></asp:ListBox> 4. 5. <asp:Button ID="Button1" CssClass="posalji" runat="server" Text="click" 6. onclick="Button1_Click" /> 7. 8. 9. 10. <asp:UpdatePanel ID="UpdatePanel10" runat="server"> 11. <ContentTemplate> <asp:ListBox ID="SUB_kategorije" CssClass="pod" Height="150px" runat="server"></asp:ListBox></ContentTemplate> 12. <Triggers> 13. <asp:AsyncPostBackTrigger ControlID="kategorije" EventName="SelectedIndexChanged" /> 14. 15. </Triggers> 16. 17. </asp:UpdatePanel>

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  • how to solve this Problem in asp.net crystal report.

    - by Ayyappan.Anbalagan
    Problem in crystal report After excecuting the bellow code,In my report page it ask like "The report you requested requires further information" server= user= password= databse= protected void Page_Load(object sender, EventArgs e) { MySqlConnection sqlcom = new MySqlConnection("server=localhost;userid=root;password=root;database=hemaepdb;"); MySqlCommand cmd = new MySqlCommand("SP_ViewBillDetails", sqlcom); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("p_Invoice_Id", MySqlDbType.Int16).Value = 1; cmd.Parameters.Add("p_Org_id", MySqlDbType.Int16).Value = 1; MySqlDataAdapter adapter = new MySqlDataAdapter(cmd); DataSet dsTest = new DataSet(); sqlcom.Open(); adapter.Fill(dsTest, "Table"); sqlcom.Close(); CrystalReportViewer1.Visible = true; ReportDocument myRpt = new ReportDocument(); myRpt.Load(Server.MapPath("CrystalReport.rpt")); myRpt.SetDatabaseLogon("root", "root", "localhost", "hemaepdb"); myRpt.SetDataSource(dsTest); CrystalReportViewer1.ReportSource = myRpt; }

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  • HTTP MODULE Event Does Not Fire When Click Browser's Back Button

    - by Ali
    I Wrote an Http Module that checks if logged user is restricted disables images on the page. void application_AuthorizeRequest(object sender, EventArgs e) { . . . if (context.User.IsInRole("Restricted")) { context.Response.StatusCode = 401; context.Response.End(); } The code works fine. When the page loads, every image on the screen disapears. but when I go to another page and click back button on the browser and goto previous page images appear. What should I? (I dont want to clear Cache every time) context.Response.Cache.SetNoStore(); context.Response.Cache.SetCacheability(HttpCacheability.NoCache);

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  • Uibutton events

    - by Raju
    //My Button code --------------------------------------------------------------------------------------------------- UIButton *ticketButtonObj=[[ticketButton alloc]initWithFrame:CGRectMake(0.0f, 115.0f, 500.0f, 40.0f) ; int col=10; [ticketButtonObj addTarget:self action:@selector(ShowNumber:) forControlEvents:UIControlEventTouchUpInside]; [self.window addSubview:ticketButtonObj]; -(void) ShowNumber:(id)sender{ // here i want to get the Value of Col } in the above code when i pressed the button.. i want print the value of col variable in ShowNumber method .. how it is ? pls Help me ... thanks and regards... by raju

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  • How to convert *.aspx (HTML) page to Image format

    - by Swapnil Fegade
    I want to convert *.aspx (HTML) page's (User Interface) to Image such as JPEG. I am using below code for that Protected Sub btnGet_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnGet.Click saveURLToImage("http://google.co.in") End Sub Private Sub saveURLToImage(ByVal url As String) If Not String.IsNullOrEmpty(url) Then Dim content As String = "" Dim webRequest__1 As System.Net.WebRequest = WebRequest.Create(url) Dim webResponse As System.Net.WebResponse = webRequest__1.GetResponse() Dim sr As System.IO.StreamReader = New StreamReader(webResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8")) content = sr.ReadToEnd() 'save to file Dim b As Byte() = Convert.FromBase64String(content) Dim ms As New System.IO.MemoryStream(b, 0, b.Length) Dim img As System.Drawing.Image = System.Drawing.Image.FromStream(ms) img.Save("c:\pic.jpg", System.Drawing.Imaging.ImageFormat.Jpeg) img.Dispose() ms.Close() End If End Sub But I am getting Error as "Invalid character in a Base-64 string" at line Dim b As Byte() = Convert.FromBase64String(content)

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  • Disposing of Objects with long living dependencies

    - by Ray Booysen
    public class ABC { public ABC(IEventableInstance dependency) { dependency.ANewEvent += MyEventHandler; } private void MyEventHandler(object sender, EventArgs e) { //Do Stuff } } Let us say that an instance of ABC is a long living object and that my dependency is an even longer running object. When an instance of ABC needs to be cleaned up, I have two options. One I could have a Cleanup() method to unsubscribe from the ANewEvent event or I could implement IDisposable and in the Dispose unwire the event. Now I have no control over whether the consumer will call the dispose method or even the Cleanup method should I go that route. Should I implement a Finaliser and unsubscribe then? It feels dirty but I do not want hanging instances of ABC around. Thoughts?

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  • Is there a way to add name/value functionality to jquery autocomplete for .net?

    - by Mark Kadlec
    I've recently added the JQuery autocomplete plug in and have a textbox that autocompletes a list of employees. It works great and I commend the authors of the plugin. I think the textbox would be MUCH more useful though, when upon selecting, we can extract the StaffID (Ie. retreive the value of the selection). My code is below and you can see that I am simply adding the staff names, would be nice to associate IDs. Does anyone know of any way to do this? My JQuery: $(document).ready(function() { $("#txtStaff").autocomplete('autocompletetagdata.aspx'); }); My ASPX page: protected void Page_Load(object sender, EventArgs e) { StaffViewListClass staffList = StaffViewListClass.GetStaff(); StringBuilder sb = new StringBuilder(); foreach (StaffViewClass staff in staffList) { sb.Append(staff.FullName).Append("\n"); } Response.Write(sb.ToString()); }

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