public ActionResult DangKy(KhachHang kh) { if (ModelState.IsValid) { using (MotorbikesShopEntities db = new MotorbikesShopEntities()) { db.KhachHangs.Add(kh); db.SaveChanges(); ModelState.Clear(); kh = null; ViewBag.Success = "Đăng ký thành công"; return(Redirect("DangNhap")); } } return(View(kh)); }