public ActionResult ThemNhaCungCap(NhaCungCapModel model)
 {
     try
     {
         INhaCungCapService service = new NhaCungCapService();
         service.ThemNCC(baseAddress, "nhacungcap/add", model);
         return(RedirectToAction("DanhSachNhaCungCap"));
     }
     catch (Exception ex)
     {
         ModelState.AddModelError("", "Đã có lỗi xảy ra");
         return(RedirectToAction("ThemNhaCungCap"));
     }
 }