Re: Tooltip, .ShowDialog(), and .Dispose() on .NET 2.0 generate a NullReferenceException

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Thanks a lot Karen

"Karen Kenworthy" <karenk.at.teddybear.com> wrote in message
news:OFcvsBBiGHA.4040@xxxxxxxxxxxxxxxxxxxxxxx
<< Is this some kind of bug ? >>

Apparently so. There's a new KB article that discusses the subject:

-------------------
SYMPTOMS
You may receive an error message when you try to close a Microsoft Windows
Forms-based application. Consider the following scenario: . A Microsoft
Windows Forms-based application uses ToolTips.
. The application is running on the Microsoft .NET Framework 2.0.
In this scenario, you may receive the following error message when you try
to close the application:
System.NullReferenceException: Object reference not set to an instance of
an object.
--------------------

They advise overriding the form's Dispose method. The suggested code is
in this article:

http://support.microsoft.com/kb/918146/en-us

Or you can ask customer support for a revised copy of
System.windows.forms.dll.

--
Karen Kenworthy
http://www.karenware.com/



.

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