加载页面时检测是否登陆

 if (!IsPostBack)
            {
                CommFun.IsAdmin();  

            ｝

 

 

commfun.cs中

 

   public static void IsAdmin()
        {
            //查看是否为超级管理员
            if (HttpContext.Current.Session["Admin"] != "yes")
            {               
                HttpContext.Current.Response.Write(@"<script>alert('你还没有登录或登录超时！');window.location.href='login.aspx';</script>");
             }
           
        }      

 

 

 

 

login.aspx.cs中判断给session赋值

 

Session["Admin"] = "yes";