private void Delete(object obj)
        {
            var addIngredietnViewModel = obj as AddIngredientViewModel;

            if (addIngredietnViewModel == null)
            {
                return;
            }

            AddIngredientControls.Remove(addIngredietnViewModel);
        }
 private void AddIngredient(object obj)
 {
     AddIngredientControls.Add(new AddIngredientViewModel(_ingredientDTO));
     CanExit = false;
 }