I have two separate socket projects in VS.NET. One of them is sender, other one is receiver. After starting receiver, i send data from sender. Although send method returns 13 bytes as successfully transferred, the receiver receives 0 (zero). The receiver accepts sender socket and listens to it. But cannot receive data. Why?
P.S. : If sender code is put in receiver project, receiver can get data, as well.
Most likely this is a bug in your code but without seeing the code it's impossible to tell.
However be aware that TCP/IP has no concept of messages, only a stream of data. So it's posisble to send 13 bytes and receive 6 in one read and 7 in the next. Or conversely to send 13 bytes then later send 7 more and on the receiveing side to receive them as a single block of 20 bytes.
I think the problem is that the send application is ending before the receiver can read the data. If you put a Thread.Sleep(1000); after the Send call, the receive application will read the data (at least when I tested it).