Catch multiple exceptions at once?

Question

It is discouraged to simply catch System.Exception. Instead, only the "known" exceptions should be caught.

Now, this sometimes leads to unnecce

Answer 1

@Micheal

Slightly revised version of your code:

catch (Exception ex)
{
   Type exType = ex.GetType();
   if (exType == typeof(System.FormatException) || 
       exType == typeof(System.OverflowException)
   {
       WebId = Guid.Empty;
   } else {
      throw;
   }
}

String comparisons are ugly and slow.