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Say i use the connection from my previous thread to connect to the server...
http://www.vbforums.com/showthread.php?threadid=312247
how about when the other side of the server somehow disconnect form my client side..
How do i check if the connection is still on or off..
Thanks
When one side disconnects, the other side gets a message with zero bytes of data. So you can check for that. I always wrap any data sending code with try...catch blocks, so you can handle any trouble you may run in to.
where should i put that try and catch blocks...
is it during send part, receive part, or during connection to the server...
or inside other methods...
I put mine in all of the above. It's very possible you can't connect to the server for whatever reason, so I think you need handle that. Anything can happen during a send/receive, so it's good to handle that as well. At least for a robust, commercial application, I think you should catch any exception that may be raised, log it/notify the user somehow, and try to recover if you can.