If a session ends : sessionState « Sessions « ASP.NET Tutorial

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="UsingSessionEnd" EnableSessionState="ReadOnly" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title>Using Session State - End</title>
</head>
<body>
  <form id="form1" runat="server">
    <div id="container">
      <h1>Using Session State - End</h1>
           Session value:
            <asp:Label ID="labSession" runat="server" /><br />
            <asp:HyperLink ID="lnkSession" runat="server" NavigateUrl="UsingSessionStart.aspx" Text="Go to session start page" /><br />
     </div>
  </form>
</body>
</html>

File: Default.aspx.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 UsingSessionEnd : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
       if (Session["Name"] == null)
          labSession.Text = "Session has timed out or not been initialized";
       else
       {
          string name = (string)Session["Name"];
          labSession.Text = name;
       }
    }
}

11.4.sessionState
	11.4.1.	Controlling When a Session Times Out
	11.4.2.	Using Cookieless Session State
	11.4.3.	If a session ends