Simple example and description of cookie programming in C

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Net;
namespace WebApplication5
{
 /// <summary>
 /// WebForm1  The summary description of. 
 /// </summary>
 public class WebForm1 : System.Web.UI.Page
 {
  protected System.Web.UI.WebControls.TextBox TextBox1;
  private void Page_Load(object sender, System.EventArgs e)
  {
   //  Place user code here to initialize the page 
   string   strHostIP="";   
   IPHostEntry   oIPHost=Dns.Resolve(Environment.MachineName);   
   if(oIPHost.AddressList.Length>0)   
    strHostIP=oIPHost.AddressList[0].ToString();   
   this.TextBox1.Text=strHostIP;
  }
  #region Web  Code generated by the forms designer 
  override protected void OnInit(EventArgs e)
  {
   //
   // CODEGEN:  The call is  ASP.NET Web  Required by the Forms designer. 
   //
   InitializeComponent();
   base.OnInit(e);
  }
  /// <summary>
  ///  The designer supports the required methods  -  Do not modify using the code editor 
  ///  The contents of this method. 
  /// </summary>
  private void InitializeComponent()
  {    
   this.Load += new System.EventHandler(this.Page_Load);
  }
  #endregion
 }
}