Better Data Sender

   

/*
C# Network Programming 
by Richard Blum

Publisher: Sybex 
ISBN: 0782141765
*/

using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Soap;

public class BetterDataSender
{
   private void SendData(NetworkStream strm, SerialEmployee emp)
   {
      IFormatter formatter = new SoapFormatter();
      MemoryStream memstrm = new MemoryStream();

      formatter.Serialize(memstrm, emp);
      byte[] data = memstrm.GetBuffer();
      int memsize = (int)memstrm.Length;
      byte[] size = BitConverter.GetBytes(memsize);
      strm.Write(size, 0, 4);
      strm.Write(data, 0, memsize);
      strm.Flush();
      memstrm.Close();
   }

   public BetterDataSender()
   {
      SerialEmployee emp1 = new SerialEmployee();
      SerialEmployee emp2 = new SerialEmployee();

      emp1.EmployeeID = 1;
      emp1.LastName = "Blum";
      emp1.FirstName = "Katie Jane";
      emp1.YearsService = 12;
      emp1.Salary = 35000.50;

      emp2.EmployeeID = 2;
      emp2.LastName = "Blum";
      emp2.FirstName = "Jessica";
      emp2.YearsService = 9;
      emp2.Salary = 23700.30;

      TcpClient client = new TcpClient("127.0.0.1", 9050);
      NetworkStream strm = client.GetStream();

      SendData(strm, emp1);
      SendData(strm, emp2);
      strm.Close();
      client.Close();
   }

   public static void Main()
   {
      BetterDataSender bds = new BetterDataSender();
   }
}


[Serializable]
public class SerialEmployee
{
   public int EmployeeID;
   public string LastName;
   public string FirstName;
   public int YearsService;
   public double Salary;

   public SerialEmployee()
   {
      EmployeeID = 0;
      LastName = null;
      FirstName = null;
      YearsService = 0;
      Salary = 0.0;
   }
}