[Mono-bugs] [Bug 76025][Nor] New - Textbox/databinding crashes.

[bugzilla-daemon at bugzilla.ximian.com]

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Changed by miguel at ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=76025

--- shadow/76025	2005-09-09 08:43:31.000000000 -0400
+++ shadow/76025.tmp.5436	2005-09-09 08:43:31.000000000 -0400
@@ -0,0 +1,54 @@
+Bug#: 76025
+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: Textbox/databinding crashes.
+
+Run winforms/databinding/swf-databinding.exe
+
+Click on the white area in "A TextBox - Binding Column["name"]"
+
+You get the following crash:
+
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+in <0x0009d> System.Windows.Forms.Binding:PullData ()
+in <0x0000a> System.Windows.Forms.Binding:ControlValidatingHandler
+(System.Object sender, System.ComponentModel.CancelEventArgs e)
+in (wrapper delegate-invoke)
+System.MulticastDelegate:invoke_void_object_CancelEventArgs
+(object,System.ComponentModel.CancelEventArgs)
+in <0x00023> System.Windows.Forms.Control:OnValidating
+(System.ComponentModel.CancelEventArgs e)
+in <0x014be> System.Windows.Forms.Control:WndProc
+(System.Windows.Forms.Message m)
+in <0x000f3> System.Windows.Forms.TextBoxBase:WndProc
+(System.Windows.Forms.Message m)
+in <0x0000d> System.Windows.Forms.TextBox: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)