Question

Does anybody know if it’s possible to write the code in the catch block below as a single statement? I haven’t been able to come up with a way, and was just curious if there was one.

IMPORTANT: the stack trace must be preserved.

    catch (Exception e)
    {
        if (e is MyCustomException)
        {
            // throw original exception
            throw;
        }

        // create custom exception
        MyCustomException e2 =
            new MyCustomException(
                "An error occurred performing the calculation.", e);
        throw e2;
    }

Answer 1

What about:

catch (MyCustomException)
{
   throw;
}
catch (Exception ex)
{
   throw new MyCustomException(ex);
}