Microsoft KB Archive/814861

= FIX: An unhandled exception error occurs in the Timer control in Visual Studio .NET 2002 =

Article ID: 814861

Article Last Modified on 10/18/2005

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APPLIES TO


 * Microsoft .NET Framework 1.0
 * Microsoft Visual Studio .NET 2002 Academic Edition
 * Microsoft Visual Studio .NET 2002 Enterprise Architect
 * Microsoft Visual Studio .NET 2002 Enterprise Developer
 * Microsoft Visual Studio .NET 2002 Professional Edition

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SYMPTOMS
In Microsoft Visual Studio .NET 2002, when you use the Timer Control, you may receive an error message that indicates that an unhandled exception error has occurred in the Timer control.



CAUSE
This problem occurs if you add a Timer control to a Microsoft Windows Form in Visual Studio .NET. If the Tick event occurs and the Enabled property of the Timer control is set to False at the same time, the Tick event may be called again. This behavior causes an unhandled exception error.



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 18-Feb-2003 11:38  1.0.3705.405  1,179,648  system_data.dll 18-Feb-2003 11:38  1.0.3705.405  1,695,744  system_design.dll 18-Feb-2003 11:35  1.0.3705.405  1,990,656  system_windows_forms.dll 18-Feb-2003 00:44  1.0.3705.405     57,344  system_windows_forms.tlb



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was corrected in Visual Studio .NET 2003.



MORE INFORMATION
For more 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

Keywords: kberrmsg kbbug kbfix kbqfe kbvs2002sp1sweep kbvs2002sp1fix kbhotfixserver KB814861

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