Tcp server: use StreamWriter and StreamReader to read and write to a client : Socket Server « Network « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Network
3. Socket Server

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

class MainClass
{
   public static void Main()
   {
      string data;
      IPEndPoint ip = new IPEndPoint(IPAddress.Any, 9999);

      Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);

      socket.Bind(ip);
      socket.Listen(10);

      Socket client = socket.Accept();
      IPEndPoint newclient = (IPEndPoint)client.RemoteEndPoint;
      Console.WriteLine("Connected with {0} at port {1}",newclient.Address, newclient.Port);

      NetworkStream ns = new NetworkStream(client);
      StreamReader sr = new StreamReader(ns);
      StreamWriter sw = new StreamWriter(ns);

      string welcome = "Welcome";
      sw.WriteLine(welcome);
      sw.Flush();

      while(true)
      {
         data = sr.ReadLine();
         Console.WriteLine(data);
         sw.WriteLine(data);
         sw.Flush();
      }
      Console.WriteLine("Disconnected from {0}", newclient.Address);
      sw.Close();
      sr.Close();
      ns.Close(); 
   }
}