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| Author | Forum: PowerTCP Sockets for .NET (Secure and Standard) Topic: Easier discrimination of exceptions? |
| cambler From: Redmond, WA USA Posts: 102 Member Since: 04/14/03 |
posted April 27, 2003 11:17 PM Is there an easier way to discriminate between exceptions other than parsing the "message" field? What leads me to ask is that it would be much easier if I could, in the EndReceive() handler, do something like if (e.Exception != null) { if (e.Exception.Type == SomeNameSpace.Timeout) { // handle timeout condition here } else { // handle all other exceptions here } } See what I'm getting at? Doing a string compare is bad for 2 reasons - first, it's slow. Second, the message might change in future versions, whereas an enumerated type is reasonably steady, especially if intended for such use. Just a thought... Christopher |
K M Drake From: Utica, NY USA Posts: 3406 Member Since: 07/14/00 |
posted April 29, 2003 11:37 AM Hi Christopher, First, exceptions can be differentiated based on their class. For example, you may have code that looks like: try {...} catch (System.Net.Sockets.SocketException sEx) {...} catch (Dart.PowerTCP.Sockets.ProtocolException pEx) {...} catch (Exception ex) {...} Furthermore, for SocketExceptions (such as Timeout), you can examine the NativeErrorCode property for an identifier that would not change (for example, 10060 for a timeout error). Hope it helps, -ken |
| K M Drake From: Utica, NY USA Posts: 3406 Member Since: 07/14/00 |
posted April 29, 2003 11:41 AM Hi, As an addendum to the above, to check the type in the EndX events: if (e.Exception is System.Net.Sockets.SocketException) {...} -ken |
| cambler From: Redmond, WA USA Posts: 102 Member Since: 04/14/03 |
posted April 29, 2003 12:50 PM Native error - thanks, that's what I was getting at. I didn't realize that you percolate that up. Thanks! |
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