TcpClient and non-blocking mode

[Guest]

I have an unmanaged C++ project which acts as a TCP client. However, the C++
client uses non-blocking mode and the tcplistener in the C# project is
blocking. I am not sure if this matters, but I'm not getting any data at the
C# client side even though the sending C++ side signals that the send was
successful. Do they both have to be of the same type, i.e. blocking or
non-blocking or could there be another error somewhere?

 

[Laura T.]

Blocking- and non-blocking modes are only socket programming models, and do
not affect real data transmission.
I think the problem is somewhere else.
You could enable .NET TCP trace to see what's coming in:

http://msdn2.microsoft.com/en-us/library/hyb3xww8(VS.80).aspx

Also a network monitor could come handy..