[Mono-bugs] [Bug 590100] New: InvalidOperationException when adding ToolStripItem to Collection

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http://bugzilla.novell.com/show_bug.cgi?id=590100

http://bugzilla.novell.com/show_bug.cgi?id=590100#c0


           Summary: InvalidOperationException when adding ToolStripItem to
                    Collection
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.6.x
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: andreas.flucke at t-online.de
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1;
Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Sometimes this exception is thrown when ToolStripItems are dynamically added to
the ToolStripItemCollection

System.InvalidOperationException: List has changed.
  at System.Collections.ArrayList+SimpleEnumerator.MoveNext () [0x00068] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\corlib\System.Collections\ArrayList.cs:150 
  at System.Windows.Forms.ToolStrip.SetDisplayedItems () [0x00074] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\ToolStrip.cs:1170 
  at System.Windows.Forms.ToolStripDropDownMenu.SetDisplayedItems () [0x00000]
in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\ToolStripDropDownMenu.cs:179 
  at System.Windows.Forms.ToolStripDropDownMenu.OnLayout
(System.Windows.Forms.LayoutEventArgs e) [0x001e6] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\ToolStripDropDownMenu.cs:157 
  at System.Windows.Forms.Control.PerformLayout (System.Windows.Forms.Control
affectedControl, System.String affectedProperty) [0x00066] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\Control.cs:4087 
  at System.Windows.Forms.Control.PerformLayout () [0x00000] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\Control.cs:4064 
  at System.Windows.Forms.ToolStrip.OnItemAdded
(System.Windows.Forms.ToolStripItemEventArgs e) [0x00033] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\ToolStrip.cs:806 
  at System.Windows.Forms.ToolStripItemCollection.Add
(System.Windows.Forms.ToolStripItem value) [0x00056] in
C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.3\mcs\class\Managed.Windows.Forms\System.Windows.Forms\ToolStripItemCollection.cs:118 


Reproducible: Sometimes

Steps to Reproduce:
1.
2.
3.

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