Data Controls :: Pass GridView Row Values Using Session

This is my UserRoleList.aspx file:

<%@ Page Title="" Language="C#" MasterPageFile="~/Forms/RolesMgt/MasterRoles.master"
AutoEventWireup="true" CodeFile="UserRoleList.aspx.cs" Inherits="Forms_RolesMgt_RoleList_UserRoleList" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">

[Code] ....

This is the UserRoleList.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

[Code] ....

This is the next page where i want all the controls of the selected row to be transferred. I tried by out ur different tutorial, it works when i use out of my project but did not work when i use it in my working project.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

[Code] ....

I tried the tutorials as u mentioned above but showing the same error.