Missing "cross-thread" MDA?

  • Thread starter Thread starter Peter Duniho
  • Start date Start date
P

Peter Duniho

Okay, I'm guessing I'm overlooking something simple here, but I'm
obviously not going to find it.

Someone please tell me the exact name of the "Cross-thread operation not
valid" MDA, as seen in the "Managed Debugging Assistants" list in the
Debug/Exceptions... menu of Visual Studio 2005?

I'm looking for this exception in my own VS configuration, to verify that
it's turned on because I accidently wrote some code that _should_ have
caused the exception but didn't. I can't even find the exception in the
list of MDAs.

Is it possible for an MDA to just get removed somehow? If so, how do I
get it back?

This is so weird...

Thanks,
Pete
 
Okay, I'm guessing I'm overlooking something simple here, but I'm
obviously not going to find it.
Click to expand...

Yay...it worked! The classic "post the question and minutes later you
will figure it out yourself" solved the crime. :)

I had mis-remembered the cross-thread exception as being an MDA
exception. It's not...it's just a normal InvalidOperationException,
thrown by the Control class for invalid cross-thread calls. Controllable
via the CheckForIllegalCrossThreadCalls property.

As for why it wasn't firing when I thought it should be, apparently I was
wrong about when it should be (as is, apparently, the MSDN
documentation). Or maybe the class simply failed to check for the illegal
operation in the specific call I made (Control.Invalidate()). I'm not
really sure yet about that.

Anyway, sorry to take your time. :)

Pete
 
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