public ActionResult Edit(int id) { var adminRole = new AdminRole(); var sandwichToUse = adminRole.GetSandwish(id); /* var listIngredients = adminRole.GetIngredients().ToList<Ingredient>(); * var listIngredientsIn = sandwichToUse.Ingredients.ToList<Ingredient>(); * var listIngredientsOut = listIngredients.Except(listIngredientsIn);*/ var listIngredientsOut = adminRole.GetMissingIngredients(sandwichToUse); return(View(new ViewModel_Sandwich_Ingredients(sandwichToUse, listIngredientsOut))); }