调试 - >异常，检查公共语言运行时异常的'Thrown'列（至少）。检查'Thrown'为您感兴趣的其他异常。

Under Debug->Exceptions, check the 'Thrown' column of Common Language Runtime Exceptions (at a minimum). Check 'Thrown' for other Exceptions you're interested in.

现在，如果调试器被连接（主动调试或附加到进程），您的ASP.NET应用程序将会在CLR异常（或您选择的任何其他异常）中断。

Now, if the debugger is attached (active debug or 'Attach to Process'), your ASP.NET app will break on a CLR Exception (or any other Exception you've selected).

如果您想在未处理的例外中仅打破 在Debug-> Exceptions下，取消选中所有异常类型上的Throwwn，并确保对您感兴趣的异常检查User-unhandled。

If you want to break only on unhandled Exceptions, under Debug->Exceptions, uncheck 'Thrown' on all Exception types and make sure 'User-unhandled' is checked for the Exceptions you're interested in.

异常接口http://scatterbright.com/debug-exceptions.png

然后，如果调试器被连接，你的ASP.NET应用程序会破坏你所选择的每个用户未处理的异常，而不管运行时最终会捕获异常的事实。示例：

Then, if the debugger is attached, your ASP.NET app will break on every User-unhandled Exception you've selected regardless of the fact the runtime will eventually catch the Exception. Sample:

调试器打破用户未处理的异常http://scatterbright.com/ debugcatchingunhandledex.png