Simple Tcp server: receive data from a client : Socket Server « Network « C# / CSharp Tutorial

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

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

class MainClass
{
   public static void Main()
   {
      IPEndPoint ip = new IPEndPoint(IPAddress.Any,9999);
      Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);

      socket.Bind(ip);
      socket.Listen(10);
      Console.WriteLine("Waiting for a client...");
      Socket client = socket.Accept();
      IPEndPoint clientep =(IPEndPoint)client.RemoteEndPoint;
      Console.WriteLine("Connected with {0} at port {1}",clientep.Address, clientep.Port);
      
      string welcome = "Welcome";
      byte[] data = new byte[1024];
      data = Encoding.ASCII.GetBytes(welcome);
      client.Send(data, data.Length,SocketFlags.None);

      while(true)
      {
         data = new byte[1024];
         int receivedDataLength = client.Receive(data);
         Console.WriteLine(Encoding.ASCII.GetString(data, 0, receivedDataLength));
         client.Send(data, receivedDataLength, SocketFlags.None);
      }

      Console.WriteLine("Disconnected from {0}",clientep.Address);
      client.Close();
      socket.Close();
   }
}