清空Session并数秒钟后自动返回到登陆页面

        if (!Page.IsPostBack)
        {
            this.lbName.Text = Session["userName"].ToString();

            //this.ClientScript.RegisterStartupScript(this.GetType(), "close", "<script>window.parent.close();</script>");
            //Response.Write("<script>window.parent.close();</script>");
            Session.Clear();
            //5秒钟后自动返回到登陆页面
            this.ClientScript.RegisterStartupScript(this.GetType(), "trans", "<script>setTimeout('document.location.href=/"../Default.aspx/"',3000)</script>");

        }