Mega Code Archive
Read cookie, if not there, create one (C#)
<![CDATA[
File: Default.ascx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="CookieExample" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<asp:Label ID="lblWelcome" runat="server" EnableViewState="False" ></asp:Label>
</div>
<br />
Name:
<asp:TextBox ID="txtName" runat="server" Width="178px"></asp:TextBox>
<asp:Button ID="cmdStore" runat="server" OnClick="cmdStore_Click" Text="Create Cookie" />
</div>
</form>
</body>
</html>
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 = "<b>Unknown Customer</b>";
}
else
{
lblWelcome.Text = "<b>Cookie Found.</b><br><br>";
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 = "<b>Cookie Created.</b><br><br>";
lblWelcome.Text += "New Customer: " + cookie["Name"];
}
}
]]>