try / catch块中未处理的异常

Question

This one is really baking my noodle...

I've got some code. When I run it, Visual Studio complains about an unhandled exception. And, sure enough, there is an exception. However, it's blatently inside a try/catch block, so... how is that "unhandled"??

I've searched around, and the only relevant hit I can find is related to LINQ. But I'm not using any LINQ, so that can't be it.

The relevant code looks something like this:

try
{
  method.Invoke(target, new object[0]);
}
catch (MyException e)
{
  Console.WriteLine(e);
}

The method being hit by Invoke() is different every time. Some of these methods really do throw exceptions - which is fine. But that's why I put it in a try-block! I don't understand why VS is complaining that the exception isn't handled.

(Yes, I have checked that the exception being thrown is a MyException object.)

At this point, my only guess is that it's somehow related to using reflection. I really need to fix this though... Any suggestions?

Answer 1

You should read the documentation for MethodInfo.Invoke .

Exceptions

TargetInvocationException - The invoked method or constructor throws an exception.

Remarks

If the invoked method throws an exception, the Exception.GetBaseException method returns the exception.

Your exception is being wrapped in a TargetInvocationException .