[Mono-bugs] [Bug 76464][Wis] New - Edititing and erasing with backspace crashes the form

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Mon Oct 17 18:55:11 EDT 2005

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Changed by stephanesavage at videotron.ca.


--- shadow/76464	2005-10-17 18:55:11.000000000 -0400
+++ shadow/76464.tmp.23578	2005-10-17 18:55:11.000000000 -0400
@@ -0,0 +1,53 @@
+Bug#: 76464
+Product: Mono: Class Libraries
+Version: 1.1
+OS Details: Debian sarge
+Status: NEW   
+Priority: Wishlist
+Component: Windows.Forms
+AssignedTo: peter at novonyx.com                            
+ReportedBy: stephanesavage at videotron.ca               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: Edititing and erasing with backspace crashes the form
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+Description of Problem: Writting to a new comboBox and then erasing its
+content makes the application crash
+Steps to reproduce the problem:
+1. Execute a form that have an editable comboBox
+2. When the application starts the first thing you do is
+   write some text into the editable comboBox, even a blank space should do
+3. Then erase everything, when there's no text left in the comboBox press
+backspace again
+Actual Results: 
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+in <0x0004b> System.Windows.Forms.ComboBox:OnTextChangedEdit (System.Object
+sender, System.EventArgs e)
+in (wrapper delegate-invoke)
+System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs)
+in <0x00023> System.Windows.Forms.Control:OnTextChanged (System.EventArgs e)
+in <0x0062c> System.Windows.Forms.TextBoxBase:ProcessDialogKey (Keys keyData)
+Expected Results: the form shouldn't crash at all, under Windows Xp this
+problem doesn't occur
+How often does this happen? 
+Additional Information:

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