Nick Weinholt (.Net Performance guru and MVP) has an article on the
correct
method for rethrowing an exception in C# so that the Exception.StackTrace
actually points to the root problem.

In C# the correct method for rethowing an exception is using throw;
without any arguments within the catch block:

try {
// code
}
catch (Exception ex) {
throw; // Rethrow exception without
resetting StackTrace
}

In VB.Net the method is the same:

Try
‘ code

Catch ex As
Exception
Throw
‘ Rethrow exception without resetting StackTrace

End Try

Using this method the stack trace will go all the way down to the original
exception, and not just to your catch block.

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