1using System;
 2using System.Collections;
 3using System.Configuration;
 4using System.Data;
 5using System.Linq;
 6using System.Web;
 7using System.Web.Security;
 8using System.Web.UI;
 9using System.Web.UI.HtmlControls;
10using System.Web.UI.WebControls;
11using System.Web.UI.WebControls.WebParts;
12using System.Xml.Linq;
13
14public partial class Report : System.Web.UI.Page
15...{
16    protected void Page_Load(object sender, EventArgs e)
17    ...{
18        if (!IsPostBack)
19        ...{
20            if (Session["Name"] == null)
21            ...{
22                Response.Redirect("Index.aspx");
23            }
24        }
25    }
26}
27