// GET: HomePage
        public ActionResult Index()
        {
            var username = HttpContext.Request.Form["username"];
            var password = HttpContext.Request.Form["password"];

            if (username != null && password != null)
            {
                var model = thanhvienDAO.GetThanhvienFromLogin(username, password);
                if (model == null)
                {
                    return(View("../HomePage/Login"));
                }
                else
                {
                    return(View(model));
                }
            }
            else
            {
                return(View());
            }
        }