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Asked: 2026-05-10T17:07:23+00:00

In my Silverlight project I have a thread that fires every x milliseconds. In

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In my Silverlight project I have a thread that fires every x milliseconds. In this thread I was attempting to change the state of the application. This wasn’t working and I didn’t know why, so put a breakpoint in to the Timer callback. The breakpoint was hit, but the minute I attempted to change the state it just bailed out of the function (assuming an exception has been thrown).

I know why the error occurred – you can’t change GUI stuff via a non-GUI thread.

My question is – how can I get Visual Studio to actually break when an exception like that occurs? (Rather than just silently bailing out, which doesn’t notify me if there is a problem).

I’ve tried the ‘Break when exceptions cross AppDomain or managed / native boundaries’, but that didn’t have any effect.

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1 Answer

  1. Can you change the break handling for InvalidOperationException so it breaks immediately rather than only if it’s unhandled?

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