public ActionResult Index(int id)
        {
            var db     = new PharmacyEntities();
            var model  = db.Products.Find(id);
            var detail = new ProductDetailModel()
            {
                id          = model.ID,
                ProductName = model.ProductName,
                Unit        = model.Unit,
                Price       = model.Buy,
                Category    = model.Category.CateName,
                Barcode     = model.Barcode,
                uuid        = System.Guid.NewGuid().ToString()
            };

            return(Json(detail, JsonRequestBehavior.AllowGet));
        }
        public ActionResult Barcode(string Barcode)
        {
            var db    = new PharmacyEntities();
            var model = db.Products.Where(x => x.Barcode == Barcode).FirstOrDefault();

            try
            {
                var detail = new ProductDetailModel()
                {
                    id          = model.ID,
                    ProductName = model.ProductName,
                    Unit        = model.Unit,
                    Price       = model.Buy,
                    Barcode     = model.Barcode,
                    uuid        = System.Guid.NewGuid().ToString()
                };
                return(Json(detail, JsonRequestBehavior.AllowGet));
            }
            catch (Exception)
            {
                var detail = new ProductDetailModel();
                return(Json(detail, JsonRequestBehavior.AllowGet));
            }
        }