sdk/samples/all in on code/Visual Studio 2010/CSASPNETCurrentOnlineUserList/CurrentOnlineUserList.aspx.cs

   1 /**************************** Module Header ********************************\
   2 * Module Name:    CurrentOnlineUserList.aspx.cs
   3 * Project:        CSASPNETCurrentOnlineUserList
   4 * Copyright (c) Microsoft Corporation
   5 *
   6 * The Membership.GetNumberOfUsersOnline Method can get the number of online
   7 * users,however many asp.net projects are not using membership.This project
   8 * shows how to display a list of current online users' information without
   9 * using membership provider.
  10
  11 * This page is used to display the current online user's information.
  12
  13 * This source is subject to the Microsoft Public License.
  14 * See http://www.microsoft.com/opensource/licenses.mspx#Ms-PL.
  15 * All other rights reserved.
  16 *
  17 \***************************************************************************/
  18
  19 using System;
  20 using System.Web.UI.WebControls;
  21
  22 namespace CSASPNETCurrentOnlineUserList
  23 {
  24     public partial class CurrentOnlineUserList : System.Web.UI.Page
  25     {
  26         protected void Page_Load(object sender, EventArgs e)
  27         {
  28             // Check whether the user is login.
  29             CheckLogin();
  30         }
  31         public void CheckLogin()
  32         {
  33             string _userticket = "";
  34             if (Session["Ticket"] != null)
  35             {
  36                 _userticket = Session["Ticket"].ToString();
  37             }
  38             if (_userticket != "")
  39             {
  40                 // Initialize the datatable which used to store the information
  41                 // of current online user.
  42                 DataTableForCurrentOnlineUser _onlinetable = new DataTableForCurrentOnlineUser();
  43
  44                 // Check whether the user is online by using ticket.
  45                 if (_onlinetable.IsOnline_byTicket(this.Session["Ticket"].ToString()))
  46                 {
  47                     // Update the last active time.
  48                     _onlinetable.ActiveTime(Session["Ticket"].ToString());
  49
  50                     // Bind the datatable which used to store the information of
  51                     // current online user to gridview control.
  52                     gvUserList.DataSource = _onlinetable.ActiveUsers;
  53                     gvUserList.DataBind();
  54                 }
  55                 else
  56                 {
  57                     // If the current User is not exist in the table,then redirect
  58                     // the page to LogoOut.
  59                     Response.Redirect("LogOut.aspx");
  60                 }
  61             }
  62             else
  63             {
  64                 Response.Redirect("Login.aspx");
  65             }
  66         }
  67     }
  68 }