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InvalidOperationException

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anacris

anacris

Programmer
Oct 7, 2003
7
US
Hi,
I am getting the following error ocassionally in my windows forms app, it doesn't stop the app from running OK, but I want to know why is it happening and if I can fix it:

InvalidOperationException: Cannot call Invoke or InvokeAsync on a control
until the window handle has been created.

Thanks a lot,
Cristina
 
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In visual studio you can make the application break into the debugger when a certain exception type occurs. Go to the Debug menu -> Exceptions. This way you can find out what lines of code are causing the exception.

Durkin
 
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Durkin,
"In visual studio you can make the application break into the debugger when a certain exception type occurs. Go to the Debug menu -> Exceptions. This way you can find out what lines of code are causing the exception."

I think this only applies to runtime. This error occurs (for me at least) in design mode. The application runs perfectly, but sometimes when design changes are made my app produces this error.

anacris,
Did you ever find a solution to this?

James Goodman MCSE, MCDBA
 
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