Rethrowing exceptions

[Dennis Dunn]

I hate saying "I don't know" so when I got back to the office I did
some research on the different ways to rethrow an exception and this
is what I found out....

MSIL has two different instructions for throwing an exception –
“throw” and “rethrow.”

The statement “throw ex;” gets compiled into a call to the “throw” IL
instruction.

The statement “throw;” gets compiled into a call to the “rethrow” IL
instruction.

The “throw” IL instruction sets the stack trace of the Exception
object to the current stack frame which is why you lose your stack
trace when you use the “throw ex;” form.

Later,
--dennis

[Jeffrey Miller]

Thanks for the research Dennis. I'm putting that in my bag-O-tricks/
bag-O-gotchas.