troubleshooting Question

C# Win Form STA Thread is not supported

Avatar of mcs26
mcs26 asked on
.NET ProgrammingMicrosoft Development
4 Comments2 Solutions640 ViewsLast Modified:
Hi,

I had a class I used that use's multiple threads. I have since added this class to a new windows from project. The code complies however at the line below,

WaitHandle.WaitAll(doneEvents);

an NotSupportedException was unhandlewed is thrown. The error message is "WaitAll for multiple handles on a STA thread is not supported".

After reading some webpages on google, what I understand is that a window form run in single thread so cannot use multi threading without changing the attribute to MTA. Is this correct and how do I do such a thing? Also is this the same for WPF forms as I'm looking to learn about them very soon.

Thanks,
M
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