[Mono-winforms-list] OpenFileDialog Exception

[sa5webber]

Looking into this further leads the problem to
mcs/class/corlib/System.Collections/ArrayList.cs. I'm apparently not the
only one to encounter this problem, but it doesn't look like its been
addressed yet. Here is the trace from my issue. 

System.InvalidOperationException: List has changed.
  at System.Collections.ArrayList+SimpleEnumerator.MoveNext () [0x00000] in
<filename unknown>:0 
  at System.Windows.Forms.Form.ShowDialog (IWin32Window owner) [0x00000] in
<filename unknown>:0 
  at (wrapper remoting-invoke-with-check)
System.Windows.Forms.Form:ShowDialog (System.Windows.Forms.IWin32Window)
  at System.Windows.Forms.CommonDialog.ShowDialog (IWin32Window owner)
[0x00000] in <filename unknown>:0 
  at System.Windows.Forms.CommonDialog.ShowDialog () [0x00000] in <filename
unknown>:0 
  at (wrapper remoting-invoke-with-check)
System.Windows.Forms.CommonDialog:ShowDialog ()
  at B2RfTestSet.B2RfTestSet.btnLoadScript_Click (System.Object sender,
System.EventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.OnClick (System.EventArgs e) [0x00000] in
<filename unknown>:0 
  at System.Windows.Forms.Button.OnClick (System.EventArgs e) [0x00000] in
<filename unknown>:0 
  at System.Windows.Forms.ButtonBase.OnMouseUp
(System.Windows.Forms.MouseEventArgs mevent) [0x00000] in <filename
unknown>:0 
  at System.Windows.Forms.Button.OnMouseUp
(System.Windows.Forms.MouseEventArgs mevent) [0x00000] in <filename
unknown>:0 
  at System.Windows.Forms.Control.WmLButtonUp (System.Windows.Forms.Message&
m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message& m)
[0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ButtonBase.WndProc (System.Windows.Forms.Message&
m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Button.WndProc (System.Windows.Forms.Message& m)
[0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control+ControlWindowTarget.OnMessage
(System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control+ControlNativeWindow.WndProc
(System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.NativeWindow.WndProc (IntPtr hWnd, Msg msg, IntPtr
wParam, IntPtr lParam) [0x00000] in <filename unknown>:0 


All I have to do to recreate the problem is create an OpenFileDialog() along
with a button to launch the OpenFileDialog() dialog. I then repeatedly click
the button to open the dialog and then then cancel it. I do this maybe about
10 times. At some point during the open process, the application crashes
with the above error.


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