MySQL Bugs: #51200: Exception when closing Query DB window

Bug #51200	Exception when closing Query DB window
Submitted:	15 Feb 2010 20:26	Modified:	18 Feb 2010 2:16
Reporter:	Jason Burns	Email Updates:
Status:	Can't repeat	Impact on me:	None
Category:	MySQL Workbench: SQL Editor	Severity:	S3 (Non-critical)
Version:	5.2.15	OS:	Windows (XP 64)
Assigned to:		CPU Architecture:	Any

Description:
From the exception window pop-up

Exception = System.ArgumentOutOfRangeException
Message = Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
FullText = System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at System.Collections.ObjectModel.ReadOnlyCollection`1.get_Item(Int32 index)
   at MySQL.GUI.Workbench.MainForm.mainDockPanel_ActiveDocumentChanged(Object sender, EventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.OnActiveDocumentChanged(EventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.RefreshActiveWindow()
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.ResumeFocusTracking()
   at WeifenLuo.WinFormsUI.Docking.DockPanel.ResumeLayout(Boolean performLayout, Boolean allWindows)
   at WeifenLuo.WinFormsUI.Docking.DockPane.CloseContent(IDockContent content)
   at WeifenLuo.WinFormsUI.Docking.DockPane.CloseActiveContent()
   at WeifenLuo.WinFormsUI.Docking.VS2005DockPaneStrip.Close_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

How to repeat:
I was in the EER window and clicked Database -> Query Database.  I chose a stored connection and connected to the DB.  Having realized I clicked on the wrong option, I then closed the resulting Query window.  This exception happened immediately after.

Thank you for the bug report. I couldn't repeat or I misunderstood: "Having realized I clicked on the wrong option, I then closed the resulting Query window.".
Are you able to show the above with attached pictures?. Thanks in advance.

Unfortunately I took no pictures.  I filed the bug based on the pop-up exception window asking me to do so.  I cannot reproduce it now either, so I'm assuming it may be some kind of race condition in the code.

Thank you for the feedback. If you are able to repeat and provide the step by step for, please re-open this bug report with that information. Thanks in advance.