protected void Page_Load(object sender, EventArgs e)
        {
            if (Session["User"] == null)
            {
                Response.Redirect("../Login.aspx");
            }

            if (!IsPostBack)
            {
                string s = Session["User"].ToString();
                datlis1.DataSource = bl.getfav(s);
                datlis1.DataBind();
            }
        }