Ivan, If you are using VS7, you can go to Debug|Exceptions to bring up the Exceptions dialog, click on the 'Common Language Runtime Exceptions' Item in the list and down in the control groups at the bottom select When the Exception is throw: Break in the debugger radio button. Hit OK then start debugging. You'll now break in the debugger at the place where the exception is thrown.
I suspect that you are winding up in your own code when the exception is thrown because that's the first place on the stack that symbols were loaded for. Mike -----Original Message----- From: Ivan Towlson [mailto:ivan.towlson@;WHITE-CARBON.COM] Sent: Monday, October 21, 2002 8:16 AM To: [EMAIL PROTECTED] Subject: [ADVANCED-DOTNET] Exceptions and the WinForms Paint event [I had no joy with this on the Windows Forms list last week, so would like to put it to the advanced list. Apologies to those who have already seen it.] If I have an unhandled exception in a "normal" event handler, such as a button click, the debugger drops me in at the exception site. E.g. private void button1_Click(...) { int naughty = 2; int bang = 10/(naughty-2); // debugger highlights this line } But if I have an unhandled exception in the Paint event, the debugger drops me on the Application.Run statement. E.g. static void Main() { Application.Run(new Form1()); } // debugger highlights this line private void panel1_Paint(...) { int naughty = 2; int bang = 10/(naughty-2); // but I want to be here! } The call stack is all Windows Forms methods (apart from my Main): there's no sign of my Paint handler in the call stack. Do other people see this behaviour? Can anyone explain why it happens? (The call stack bottoms out in a method called PaintWithErrorHandling: I guess this is throwing a new exception instead of just rethrowing mine. But why would it do that?) And on a more practical note, are there any good ways to persuade the debugger to catch Paint-related exceptions at their site? -- Ivan Towlson White Carbon You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com. You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
