TcpClient connection state

[David Dvali]

Hello.

I'm developing some project which requests persistent TCP connection to the
server.
I'm using TcpClient class for implementing this task and now I want to do
following:
I want to check if the connection is alive or if it's possible I want to do
the event on server disconnecting.
It will be nice if you will provide me with some example of source code.

Thank you.