[Mono-bugs] [Bug 394531] New: Control. Invoke causes InvalidOperationException if CheckForIllegalCrossThreadCalls is used

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=394531


           Summary: Control.Invoke causes InvalidOperationException if
                    CheckForIllegalCrossThreadCalls is used
           Product: Mono: Class Libraries
           Version: SVN
          Platform: x86
        OS/Version: Ubuntu
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: daniel.grunwald at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Created an attachment (id=218146)
 --> (https://bugzilla.novell.com/attachment.cgi?id=218146)
Test case

Description of Problem:
When CheckForIllegalCrossThreadCalls is set to true, MWF throws an exception
even for valid cross thread calls.


Steps to reproduce the problem:
1. Start attached test program
2. Click on the button


Actual Results:
Unhandled Exception: System.InvalidOperationException: Cross-thread access of
handle detected. Handle access only valid on thread that created the control
  at System.Windows.Forms.Control.get_Handle () [0x00031] in
/home/daniel/mono/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Control.cs:2857 
  at (wrapper remoting-invoke-with-check)
System.Windows.Forms.Control:get_Handle ()
  at System.Windows.Forms.Control.BeginInvokeInternal (System.Delegate method,
System.Object[] args, System.Windows.Forms.Control control) [0x0000c] in
/home/daniel/mono/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Control.cs:1297 
  at System.Windows.Forms.Control.Invoke (System.Delegate method,
System.Object[] args) [0x0001a] in
/home/daniel/mono/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Control.cs:4007 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control:Invoke
(System.Delegate,object[])
  at System.Windows.Forms.Control.Invoke (System.Delegate method) [0x00020] in
/home/daniel/mono/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Control.cs:3994 
  at Form1.RunThread () [0x0003a] in /home/daniel/CrossThread.cs:28 


Expected Results:
Button text changes to "OK"


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