I am using the background worker class in VS 2005. The worker's job is to get the data from the server every so often and update the grid data. Everything works fine. However, when user interacts with the grid layout i.e resize columns, grouping column, an exception is thrown. I tried the same code with MS data grid and the problem does not occur. Here's the code snippet.

Private Sub frmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
                thdProcessing.RunWorkerAsync()
End Sub

    Private Sub thdProcessing_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles thdProcessing.DoWork
        While True
             thdProcessing.ReportProgress(0, mobjConnection.Conductor.GetAllTasks)
             Threading.Thread.Sleep(5000)
        End While
    End Sub

    Private Sub thdProcessing_ProgressChanged(ByVal sender As Object, ByVal e As System.ComponentModel.ProgressChangedEventArgs) Handles thdProcessing.ProgressChanged
        Telerikgrid.DataSource = e.UserState
        DataGridView1.DataSource = e.UserState
    End Sub

Here's the call stack of the exception

"   at Telerik.WinControls.UI.GridHeaderRowElement.OnMouseUp(MouseEventArgs e)\r\n   at Telerik.WinControls.RadElement.OnCLREventsRise(RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.OnBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadItem.OnBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.UI.GridRowElement.OnBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)\r\n   at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)\r\n   at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)\r\n   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)\r\n   at System.Windows.Forms.Control.WndProc(Message& m)\r\n   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)\r\n   at Telerik.WinControls.RadControl.WndProc(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)\r\n   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)\r\n   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.Run(ApplicationContext context)\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()\r\n   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)\r\n   at CivilAutoManagerDeveloperEdition.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81\r\n   at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)\r\n   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)\r\n   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()\r\n   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)\r\n   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)\r\n   at System.Threading.ThreadHelper.ThreadStart()"

Hello All, 

is gridview possible to make fix row and column,

i need to make first column fix with default text "Type" 

and 2 fix rows "A" and "B" 

 

can this possible to apply ? 

 

Thanks ....

I need to order groups by something other than the field used to group by.  For example, assume I have a list of Customers with non-unique names.  I group on Customer Id, but display Customer Name.  I need to order on the customer's name, not the Id.  What's the recommended approach for doing this with Q1 2008?

how do I remove the excessive white space around the  gauge controls?

In the attached image all  want is a thin gauge representing a battery but the control is huge,  and cant be sized smaller.

 

I've add a button to titlebar to allow the user set the form to fullscreen.

But seems shapedform don't allow me to do that. Is there anyway to achive that?

I am assigning numerical value to the barcode value but when scanning special characters were appended at the end.

I am having this situation: when click on the scroll bar to up or down the RadListView the SelectedItemChanged event is raised. I have a work around in my client code to prevent it but it's ugly... somebody deal with it.

Steps to reproduce:

1) Have a RadListView in your form with many data to it shows the scroll bar 

2) Subscribe your for to the SelectedItemChanged event 

3) Run your form and select an item before use the scroll bar

4) click in the button to Up/Down the scroll bar. The subscribed is called (use some break point to check it)

Hi,

How to assign RadCalculatorDropdown.Value always with number decimal digit each equals button click.

for example:

i have input 22 / 7

but result is 3,1428571428571428571428571429

i want the result is 3,1429 with 4 digit decimal

thanks

When the user selects rows on the grid, tis very hard to figure out which ones are selected or not.

Is there a way at design time I can play with the color to be used for this?

 

Thanks

Deasun

Hello,

When setting the property this.IsMdiContainer = true;
the main form changes color, how can I change the color?

       private void MenuPrincipal_Load (object sender, EventArgs e)
         {
            this.IsMdiContainer = true;
            this.radDock1.AutoDetectMdiChildren = true;
         }
        private void radButton1_Click (object sender, EventArgs e)
         {
             radForm1 form = new radForm1 ();
             form.Text = "Test Form" + DateTime.Now.ToShortTimeString ();
             form.MdiParent = this;
             form.Show ();

         }

Here I show the photo

Thank you.