FIX: Crash When UserControl Accesses Members of ParentControls
Article ID: 171834
Article Last Modified on 12/10/2003
APPLIES TO
- Microsoft Visual Basic 5.0 Control Creation Edition
- Microsoft Visual Basic 5.0 Learning Edition
- Microsoft Visual Basic 5.0 Professional Edition
- Microsoft Visual Basic 5.0 Enterprise Edition
This article was previously published under Q171834
SYMPTOMS
When a UserControl tries to access members of the ParentControls collection
when it is not in UserMode (AmbientProperties.UserMode = False), the
following error may occur:
"VB5 caused an invalid page fault in module VB5.EXE at 0137:004650a3."
CAUSE
Visual Basic 5.0 is not releasing the interfaces correctly.
RESOLUTION
Install Visual Studio 97 Service Pack 2 (SP2). Alternately, use a
For...Next loop instead of a For...Each loop when looping through the
ParentControls collection to avoid the error.
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This bug has been fixed in Visual Studio
97 Service Pack 2.
For more information on the Visual Studio 97 Service Pack 2, please see the
following article in the Microsoft Knowledge Base:
170365
: INFO: Visual Studio 97 Service Packs - What, Where, and Why
For a list of the Visual Basic 5.0 bugs that were fixed in the Visual
Studio 97 Service Pack 2, please see the following article in the Microsoft
Knowledge Base:
171554
: INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2
Additional query words: kbDSupport
Keywords: kbbug kbfix kbvbp500sp2fix kbvs97sp2fix KB171834