在asp.net 中实现单点登录

<%@ Page language="c#" Codebehind="SingleLogin.<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>x.cs" AutoEventWireup="false"
Inherits="eMeng.Exam.SingleLogin" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>单点登录测试</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta http-equiv="Author" content="孟子E章">
<meta http-equiv="WebSite" content="http://dotnet.<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>x.cc/">
<style>
H3 { FONT: 17px 宋体 }
INPUT { FONT: 12px 宋体 }
SPAN { FONT: 12px 宋体 }
P { FONT: 12px 宋体 }
H4 { FONT: 12px 宋体 }
</style>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<div align="center">
    <h3>单点登录测试</h3>
    <p>用户名称：<<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:TextBox id="UserName" runat="server"></<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:TextBox></p>
    <p>用户密码：<<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:TextBox id="PassWord" runat="server" TextMode="Password"></<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:TextBox></p>
    <p><<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:Button id="Login" runat="server" Text=" 登录 "></<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:Button></p>
    <p><<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:Label id="Msg" runat="server"></<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>:Label></p>
</div>
</form>
</body>
</HTML>

SingleLogin.aspx.cs代码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace eMeng.Exam
{
/// <summary>
/// SingleLogin 的摘要说明。
/// 实现单点登录
/// </summary>
public class SingleLogin : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox UserName;
protected System.Web.UI.WebControls.TextBox PassWord;
protected System.Web.UI.WebControls.Label Msg;
protected System.Web.UI.WebControls.Button Login;

private void Page_Load(object sender, System.EventArgs e)
{
// 实际例子可访问：
// http://dotnet.<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>x.cc/Exam/SingleLogin.<a href="http://www.myfaq.com.cn/Dev/Web/Asp/index.html" target="_blank">asp</a>x
}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Login.Click += new System.EventHandler(this.Login_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion

private void Login_Click(object sender, System.EventArgs e)
{
// 作为唯一标识的Key，应该是唯一的，这可根据需要自己设定规则。
// 做为测试，这里用用户名和密码的组合来做标识；也不进行其它的错误检查。

在asp.net 中实现单点登录