Windows Forms Application Exceptions Trapping

Question

Is there an elegant way to trap all unhandled exceptions in a Windows Form application? I would like to handle them and write them to a log file. I know ASP.NET has one. I'm using C#.

Answer 1

To trap uncaught exceptions on UI threads only, you can use Application.ThreadException event.

To trap uncaught exceptions on all threads in the appdomain, use AppDomain.Current.UnhandledException. The latter won't let you swallow the exception, however - you can log it in the handler, but once it returns, the exception will be handed over to Watson, which will display the usual Win32 crash dialog.