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Bug Report T467915
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An application crashes on clicking the ThumbnailButton

created 8 years ago

Hello,

i have attached a sample Application with a TaskBarAssistent and two ThumbnailButtons (Screenshot).
If you click on thumbnarilButton1 or 2 the application crashes.

C#
System.InvalidCastException wurde nicht behandelt.  
  HResult=-2147467262  
  Message=Das Objekt des Typs "System.EventHandler`1[DevExpress.Utils.Taskbar.ThumbButtonClickEventArgs]" kann nicht in Typ "System.EventHandler" umgewandelt werden.  
  Source=DevExpress.Utils.v16.2  
  StackTrace:  
       bei DevExpress.Utils.Taskbar.ThumbnailButton.RaiseThumbButtonClick(IntPtr handle)  
       bei DevExpress.Utils.Taskbar.Core.FilterWindow.DispatchThumbnailButtonMessage(Message& m, ThumbnailButtonCollection collection, IntPtr handle)  
       bei DevExpress.Utils.Taskbar.Core.FilterWindow.WndProc(Message& m)  
       bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)  
       bei System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)  
       bei System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)  
       bei System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)  
       bei System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)  
       bei System.Windows.Forms.Application.Run(Form mainForm)  
       bei DXApplication1.Program.Main() in C:\Users\dro\Documents\Visual Studio 2015\Projects\DXApplication1\DXApplication1\Program.cs:Zeile 23.  
       bei System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)  
       bei System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)  
       bei Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()  
       bei System.Threading.ThreadHelper.ThreadStart_Context(Object state)  
       bei System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
       bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
       bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)  
       bei System.Threading.ThreadHelper.ThreadStart()  
  InnerException:

Please provide a quick solution because we shipped a version with DevExpress 16.2.3 to your customers.

Regards
Daniel

Comments (1)
Alisher (DevExpress Support) 8 years ago

    Hi Daniel,

    I have reproduced the issue and passed this ticket to our developers. We will inform you of our progress once we make any. Please bear with us.

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    Answers approved by DevExpress Support

    created 8 years ago

    We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

    Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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