adminmasterpage.master.cs

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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 Admin_AdminMasterPage : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        BookManageSecurity.CheckAdminPermission();
        if (Request.IsAuthenticated)
        {
            btnLogout.Visible = true;
            lblLogin.Visible = false;
        }
        else if (!Request.IsAuthenticated)
        {
            lblLogin.Visible = true;
            btnLogout.Visible = false;
        }
    }

    protected void btnLogout_Click(object sender, System.EventArgs e)
    {
        //退出form验证
        FormsAuthentication.SignOut();
        //清楚所有session
        Session.RemoveAll();
        //清除登陆cookie
        HttpCookie cookie = Request.Cookies[FormsAuthentication.FormsCookieName];
        cookie.Expires = DateTime.Now;
        Response.Cookies.Add(cookie);
        //重定向到登录页
        Response.Redirect("~/login.aspx");
    }
}