<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> void Page_Load() { string[] cookies = Request.Cookies.AllKeys; foreach (string cookie in cookies) { BulletedList1.Items.Add("Deleting " + cookie); Response.Cookies[cookie].Expires = DateTime.Now.AddDays(-1); } } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>Delete All Cookies</title> </head> <body> <form id="form1" runat="server"> <div> <h1>Delete All Cookies</h1> <asp:BulletedList id="BulletedList1" EnableViewState="false" Runat="server" /> </div> </form> </body> </html>