protected async override void OnNavigatedTo(NavigationEventArgs e)
{
food = e.Parameter as food;
foodDetail f = await service.todaySpecial(food.id);
ButtonBack.IsEnabled = this.Frame.CanGoBack;
food = f.data;
}
private async void imgF_Tapped(object sender, TappedRoutedEventArgs e)
{
CartItem cartItem = lvCart.SelectedItem as CartItem;
foodDetail f = await new foodService().todaySpecial(cartItem.foodId);
food food = f.data;
MainPage.mainFrame.Navigate(typeof(thumb2), food);
}
