Why is .NET exception not caught by try/catch block?

Question

I\'m working on a project using the ANTLR parser library for C#. I\'ve built a grammar to parse some text and it works well. However, when the parser comes across an illeg

Answer 1

If you are using com objects your project and try catch blocks not catch the exceptions you will be need disable Tools/Debugging/Break when exceptions cross AppDomain or managed/native boundaries(Managed only) option.