detect if tcp connection dropped/aborted

[batmanAgen]

hi guys, im developing a client/server app and i need to continuously check the connection between my server and its clients... how can i do that in c#.. how will i know if a connection is dropped.. or if my network cable is disconnected from the lancard.. im new in network programming.. i greatly appreciate any help and suggestions.. tnx guys..

[Dario Solera]

The Receive/Send or BeginReceive/BeginSend methods will return 0 bytes received/sent when the connection is lost or closed by the other host. ___________________________________ Tozzi is right: Gaia is getting rid of us. My Blog [ITA]

[leppie]

If the connection drops or gets severed, or when the timeout expires an exception will be thrown. I tend to send a 'blank' packet every 30-60 seconds, to force 'detection' of the network state. If its idle, it cant detect an error state. HTH :)

xacc.ide-0.1.1.11 - now with Settings & AutoComplete(kinda)

[mcljava]

One final note, since you can detect socket end of file (0 return of recv) you still need to plan for how to convey that event to your mainline code if it is not the same line of executing code. Typically a ManualResetEvent or Semaphore works fine for this. Particulary if we are talking about a multi-threaded model. Mike Luster