public ActionResult Login(string txtUsu, string txtContra) { string usu = txtUsu; string contra = txtContra; string nivel = dao.login(usu, contra); if (!nivel.Equals("")) { System.Web.HttpContext.Current.Session["nivel"] = nivel; System.Web.HttpContext.Current.Session["nombre"] = usu; return(RedirectToAction("Productos")); } else { return(View()); } }