private void start() { listenerChat = new TcpListener(2019); listenerChat.Start(); clientChat = listenerChat.AcceptTcpClient(); sw = new StreamWriter(clientChat.GetStream(), ASCIIEncoding.ASCII); StreamReader sr = new StreamReader(clientChat.GetStream(), ASCIIEncoding.ASCII); ChatClass cclass = new ChatClass(outputBox, clientChat); chatThread = new Thread(cclass.run); chatThread.Start(); }