Microsoft KB Archive/829318

= FIX: Controls are lost when you open or you switch views in a Managed C++ Windows Forms project =

Article ID: 829318

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft Visual C++ .NET 2003 Standard Edition
 * Microsoft Visual Studio .NET 2003 Academic Edition
 * Microsoft Visual Studio .NET 2003 Enterprise Architect
 * Microsoft Visual Studio .NET 2003 Enterprise Developer

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SYMPTOMS
When you open or when you switch from Code view to Design view in a very large Managed C++ Windows Forms project that has many controls on the Windows Form, the controls no longer appear in Design view. For each missing control, you receive the following message in the Task List window: the message

Object reference not set to an instance of an object

The declarations of all the missing controls are still in the source code of the Windows Form Header File.

Another symptom of this problem is that you experience a delay of several minutes when you open the Design view of a form.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

  Date         Time   Version      Size       File name -  23-Sep-2003  14:26  7.10.3266.0  1,849,344  Vcpkg.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: WinForm

Keywords: kbbug kbfix kbqfe kbvsnet2003sp1fix kbhotfixserver KB829318

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