Cookie ASP.Net Tutorial

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  4. Read cookie, if not there, create one (C#)
File: Default.ascx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="CookieExample" %>



    Untitled Page


    
    

      

        
      

      
      Name:
      
      
    

    


File: Default.ascx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class CookieExample : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    HttpCookie cookie = Request.Cookies["Preferences"];
    if (cookie == null)
    {
      lblWelcome.Text = "Unknown Customer";
    }
    else
    {
      lblWelcome.Text = "Cookie Found.

";
      lblWelcome.Text += "Welcome, " + cookie["Name"];
    }
    }
  protected void cmdStore_Click(object sender, EventArgs e)
  {
    HttpCookie cookie = Request.Cookies["Preferences"];
    if (cookie == null)
    {
      cookie = new HttpCookie("Preferences");
    }
    cookie["Name"] = txtName.Text;
    cookie.Expires = DateTime.Now.AddYears(1);
    Response.Cookies.Add(cookie);
    lblWelcome.Text = "Cookie Created.

";
    lblWelcome.Text += "New Customer: " + cookie["Name"];
  }
}