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C#-Quelltext

private void btnConnect_Click(object sender, EventArgs e)
        {
            encoding = new ASCIIEncoding();
            client = new TcpClient();
            client.Connect(GetEndPointFromTB());
            stream = client.GetStream();  // funktioniert

            stream.Write(BytesByInt((int)MessageID.ClientData), 0, 4); // MessageID, funktioniert 
            stream.Write(BytesByInt(encoding.GetByteCount(tbName.Text)), 4, 4); // Größe des Strings für Auslesen vom Server
            stream.Write(encoding.GetBytes(tbName.Text), 8, encoding.GetByteCount(tbName.Text)); // String
            stream.Flush();
        }

C#-Quelltext

private void HandleClientComm(object client) //ParameterizedThread
        {
            TcpClient tcpClient = (TcpClient)client;
            NetworkStream clientStream = tcpClient.GetStream();

            byte[] message = new byte[4096];
            int bytesRead;

            while (true)
            {
                bytesRead = 0;

                try
                {
                    Console.WriteLine("PECH");
                    bytesRead = clientStream.Read(message, 0, 4096);
                }

                catch
                {
                    break;
                }

                if (bytesRead == 0)
                {
                    Console.WriteLine("DISCONNECT: {0}", ((IPEndPoint)tcpClient.Client.RemoteEndPoint).Address.ToString());
                    break; // disconnected
                }

                MessageID id = (MessageID)BitConverter.ToInt32(message, 0);

                switch (id)
                {
                    case MessageID.TakeRole:
                        Console.WriteLine("Neue Anfrage: TakeRole");
                        break;
                    case MessageID.ClientData:
                        int numBytes = BitConverter.ToInt32(message, 4);
                        string name = encoding.GetString(message, 8, numBytes);

                        

                        Console.WriteLine("NAME: {0} ",name);
                        clients.Add((TcpClient)client, name);
                        break;
                }

                


            }

            
            
        }