[Word application-level add-in] Exception Handling

Question

Hi

I'm trying to handle all exceptions in my Word 2007 application-level add-in.

I have a Windows Form, and if an exception is thrown when the OK button is clicked, I get "unhandled by user code" in VS 2008 SP1.

This is despite having handlers set up for Application.ThreadException and AppDomain.CurrentDomain.UnhandledException

I know I can catch and handle the exception within the form's code, but is there any way I can just have it handled by Application.ThreadException or AppDomain.CurrentDomain.UnhandledException? 

thanks

Jason

Answer 1

OK, problem solved after a number of wasted hours.

You need the [System.Diagnostics.DebuggerNonUserCodeAttribute()] annotation.

Alternatively, unchecking the Visual Studio setting "Break when an exception is .. user-unhandled"  for CLR exceptions seemed to do the trick today.

The MS documentation on exception handling in VSTO apps leaves a lot to be desired.  Even the 1000+ page Carter/Lippert tome says sweet fa about it!