public ActionResult CheckValidaUser(User model) { bool result = false; var DataItem = db.Users.Where(x => x.Username == model.Username && x.Password == model.Password).SingleOrDefault(); if (DataItem != null) { var RoleName = userdao.GetByIDRole(int.Parse(DataItem.IDRole)); //Session["RoleName"] = DataItem.IDRole.ToString(); Session["RoleName"] = RoleName; Session["IDUser"] = DataItem.ID.ToString(); Session["Username"] = DataItem.Username.ToString(); result = true; } else { result = false; } return(Json(result, JsonRequestBehavior.AllowGet)); }