Csharp/C Sharp by API/System.Net.Sockets/ProtocolType

ProtocolType.Udp

<source lang="csharp"> using System; using System.Net; using System.Net.Sockets; using System.Text; public class TestUdpClient {

  public static void Main()
  {
     byte[] data = new byte[1024];
     IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9050);
     Socket server = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);
     string welcome = "Hello, are you there?";
     data = Encoding.ASCII.GetBytes(welcome);
     server.SendTo(data, data.Length, SocketFlags.None, ipep);
     IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
     EndPoint tmpRemote = (EndPoint)sender;
     data = new byte[1024];
     int recv = server.ReceiveFrom(data, ref tmpRemote);
     Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
     Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

     server.SendTo(Encoding.ASCII.GetBytes("message 1"), tmpRemote);
     server.SendTo(Encoding.ASCII.GetBytes("message 2"), tmpRemote);
     server.SendTo(Encoding.ASCII.GetBytes("message 3"), tmpRemote);
     server.SendTo(Encoding.ASCII.GetBytes("message 4"), tmpRemote);
     server.SendTo(Encoding.ASCII.GetBytes("message 5"), tmpRemote);
     Console.WriteLine("Stopping client");
     server.Close();
  }

}

 </source>