[Mono-bugs] [Bug 76021][Nor] New - Datagrid crash while editing.

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Changed by miguel at ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=76021

--- shadow/76021	2005-09-09 08:37:44.000000000 -0400
+++ shadow/76021.tmp.5333	2005-09-09 08:37:44.000000000 -0400
@@ -0,0 +1,61 @@
+Bug#: 76021
+Product: Mono: Class Libraries
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: peter at novonyx.com                            
+ReportedBy: miguel at ximian.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Datagrid crash while editing.
+
+I tried editing a Datagrid, run the sample from:
+
+winforms/databinding:
+
+mono swf-databinding.exe
+
+Then click on "A DataGrid - Binding:" (its the one on the right):
+
+Select the second row (There is a ">" label on the row) on the url column,
+that highlights the row, click again to start editing.
+
+Press Home, Press End, Press Home, click on the line.
+
+crash:
+
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+in <0x00049> System.Windows.Forms.XplatUIX11:PostMessage (IntPtr handle,
+Msg message, IntPtr wparam, IntPtr lparam)
+in <0x0002d> System.Windows.Forms.XplatUIX11:SetFocus (IntPtr handle)
+in <0x00015> System.Windows.Forms.XplatUI:SetFocus (IntPtr handle)
+in <0x0014c> System.Windows.Forms.Control:Select
+(System.Windows.Forms.Control control)
+in <0x0003e> System.Windows.Forms.ContainerControl:set_ActiveControl
+(System.Windows.Forms.Control value)
+in <0x0010c> System.Windows.Forms.Control:Select
+(System.Windows.Forms.Control control)
+in <0x00874> System.Windows.Forms.Control:WndProc
+(System.Windows.Forms.Message m)
+in <0x00014> System.Windows.Forms.Control+ControlNativeWindow:WndProc
+(System.Windows.Forms.Message m)
+in <0x0011e> System.Windows.Forms.NativeWindow:WndProc (IntPtr hWnd, Msg
+msg, IntPtr wParam, IntPtr lParam)
+in <0x00016> System.Windows.Forms.XplatUIX11:DispatchMessage
+(System.Windows.Forms.MSG msg)
+in <0x00015> System.Windows.Forms.XplatUI:DispatchMessage
+(System.Windows.Forms.MSG msg)
+in <0x00222> System.Windows.Forms.Application:Run ()
+in <0x000a4> System.Windows.Forms.Application:Run
+(System.Windows.Forms.ApplicationContext context)
+in <0x0002e> System.Windows.Forms.Application:Run
+(System.Windows.Forms.Form mainForm)
+in <0x0001f> MyFormProject.MainForm:Main (System.String[] args)