public ProductViewModel()
        {
            ListProduct = new ObservableCollection <ProductModel>();

            Task.Run(async() => {
                ListProduct = new ObservableCollection <ProductModel>(ProductMapping.MappingProductEntityModelToProductModel(await Database.GetItemsAsync()));
            });
        }
 public async void RefreshAllProduct()
 {
     ListProduct = new ObservableCollection <ProductModel>(ProductMapping.MappingProductEntityModelToProductModel(await Database.GetItemsAsync()));
 }