C#

serverStream.Write(outStream, 0, outStream.Length);

using System.Windows.Forms;
using System.Net.Sockets;
using System.Threading;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient();
        NetworkStream serverStream = default(NetworkStream);
        string readData = null;

         public Form1()
        {
            InitializeComponent();
            
        }
      
        //Connect to the Server
         private void button2_Click(object sender, EventArgs e)
         {
         //    clientSocket.Connect("127.0.0.1", 8888);
         //    serverStream = clientSocket.GetStream();


             byte[] outStream = System.Text.Encoding.ASCII.GetBytes(nickNameTextBox.Text + "$");
             serverStream.Write(outStream, 0, outStream.Length);
             serverStream.Flush();

         }

         private void button1_Click(object sender, EventArgs e)
         {
            
             readData = "Conected to Chat Server ...";
             msg();
             clientSocket.Connect("127.0.0.1", 8888);
             serverStream = clientSocket.GetStream();

             byte[] outStream = System.Text.Encoding.ASCII.GetBytes(sendTextBox.Text + "$");
             serverStream.Write(outStream, 0, outStream.Length);
             serverStream.Flush();

             Thread ctThread = new Thread(getMessage);
             ctThread.Start();

         }
         private void getMessage()
        {
            while (true)
            {
                serverStream = clientSocket.GetStream();
                int buffSize = 0;
                byte[] inStream = new byte[10025];
                buffSize = clientSocket.ReceiveBufferSize;
                serverStream.Read(inStream, 0, buffSize);
                string returndata = System.Text.Encoding.ASCII.GetString(inStream);
                readData = "" + returndata;
                msg();
            }
        }

        private void msg()
        {
            if (this.InvokeRequired)
                this.Invoke(new MethodInvoker(msg));
            else
                loggTextBox.Text = loggTextBox.Text + Environment.NewLine + " >> " + readData;
        }