private void OnSaveClick(Object sender, RoutedEventArgs e)
{
if (ViewModel.Meal.MealId >= 0)
{
// edit meal
Meal.EditMealInDatabase(ViewModel.Meal);
}
else
{
// add new meal
Meal.AddMealToDataBase(ViewModel.Meal);
}
MainWindow.MainWindowAccessor.ChangeContentWindow(new ManageMealsView());
}
