use TcpClient to connect to a server : TcpClient : Network C# Examples

    
using  System;
using  System.IO;
using  System.Net;
using  System.Net.Sockets;

class  MainClass
{
        public  static  void  Main()  
        {
                TcpClient  client  =  new  TcpClient();

                try
                {
                        Console.WriteLine("Attempting  to  connect  to  the  server  ","on  port  8000.");
                        client.Connect(IPAddress.Parse("127.0.0.1"),  8000);
                        Console.WriteLine("Connection  established.");

                        NetworkStream  stream  =  client.GetStream();

                        using  (BinaryWriter  w  =  new  BinaryWriter(stream))
                        {
                        }
                        using  (BinaryReader  r  =  new  BinaryReader(stream))
                        {
                        }

                }
                catch  (Exception  err)
                {
                        Console.WriteLine(err.ToString());
                }
                finally
                {
                        client.Close();
                        Console.WriteLine("Port  closed.");
                }
        }
}