System Net Sockets C# by API

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class NetworkStreamTcpClient
{
   public static void Main()
   {
      byte[] data = new byte[1024];
      string input, stringData;
      int recv;
      IPEndPoint ipep = new IPEndPoint(
                      IPAddress.Parse("127.0.0.1"), 9050);
      Socket server = new Socket(AddressFamily.InterNetwork,
                     SocketType.Stream, ProtocolType.Tcp);
      server.Connect(ipep);
      NetworkStream ns = new NetworkStream(server);
      if (ns.CanRead)
      {
         recv = ns.Read(data, 0, data.Length);
         stringData = Encoding.ASCII.GetString(data, 0, recv);
         Console.WriteLine(stringData);
      }
      else
      {
         Console.WriteLine("Error: Can't read from this socket");
         ns.Close();
         server.Close();
         return;
      }
      while(true)
      {
         input = "asdf";
         if (input == "exit")
            break;
         if (ns.CanWrite)
         {
            ns.Write(Encoding.ASCII.GetBytes(input), 0, input.Length);
            ns.Flush();
         }
         recv = ns.Read(data, 0, data.Length);
         stringData = Encoding.ASCII.GetString(data, 0, recv);
         Console.WriteLine(stringData);
      }
      Console.WriteLine("Disconnecting from server...");
      ns.Close();
      server.Shutdown(SocketShutdown.Both);
      server.Close();
   }
}