How to get Exception property (error code)

[donaldc104]

Good suggestion (thanks!) but no luck.
HashCode is still the only known method to make my program work.
I tested two error cases: 1. Port Not Open and 2. Timeout.
The only way to tell the difference between them is HashCode.

Heres the code I used:

 Catch exc As Exception
 Dim ExceptionType As System.Type
 ExceptionType = exc.GetType()         Error GetType
 strErrMsg = exc.Message.ToString    Text Error Message.   
 iHashCode = exc.Message.GetHashCode   Error HashCode 
 Console.WriteLine("TEST1 GT=" & exc.GetType().ToString() _
                & ", H=" & iHashCode & ", M=" & strErrMsg)

Here are the outputs from the two tests:
TEST1 GT=System.ApplicationException, H=-108330557, M=Please initialize and open port before using this method
TEST1 GT=System.ApplicationException, H=-1549478346, M=Read Error: Timeout error

I tested on two different machines, both Win2000 but different configurations. Identical results.
The HashCode numbers are constant, so this seems reliable.

Maybe this will remain one of those unanswered questions.

 

[Divil]

You have your answer there. You should be catching the ApplicationException class. Dont rely on the hashcode.

 

[donaldc104]

I dont see any answer in using GetType.
In both my test cases, exc.GetType() yielded NO distinguishing info.
It says only "System.ApplicationException"

I need to discriminate between TimeOuts and NON TimeOuts.
The only way I see to do this is through exc.Message.GetHashCode.
(or its even clumsier sibling exc.Message.ToString)

Is there something here that Im missing?