在我的Web应用程序中，我想在视图中显示由Category_ID分隔的项目列表。
要做到这一点在我创建的视图模型中

public class ProductsViewModel
{
    public IEnumerable<CakesViewModel> CakesVM { get; set; }
    public IEnumerable<PizzaViewModel> PizzaVM { get; set; }
    public IEnumerable<FastFoodsViewModel> FastFoodsVM { get; set; }
}

在控制器中：

public ActionResult Index()
{
        List<Products> Cakes = db.Products.Where(x=>x.Category_ID == 1).ToList<Products>();
        List<Products> Pizzas = db.Products.Where(x => x.Category_ID == 2).ToList<Products>();
        List<Products> FastFoods = db.Products.Where(x => x.Category_ID == 3).ToList<Products>();
        List<ProductsViewModel> allProducts = new List<ProductsViewModel>();
        
        foreach (Products item in Cakes)
        {
            CakesViewModel productsView = new CakesViewModel();
            productsView.ID = item.ID;
            productsView.ProductPrice = item.ProductPrice;
            productsView.ProductName = item.ProductName;
            productsView.Is_Customizable = item.Is_Customizable;
            productsView.Category_Name = item.FoodCategories.CategoryName;
            productsView.ProductPicture = item.ProductPicture;

            allProducts.Add(productsView);
        }

        foreach (Products item in Pizzas)
        {
            PizzaViewModel productsView = new PizzaViewModel();
            productsView.ID = item.ID;
            productsView.ProductPrice = item.ProductPrice;
            productsView.ProductName = item.ProductName;
            productsView.Is_Customizable = item.Is_Customizable;
            productsView.Category_Name = item.FoodCategories.CategoryName;
            productsView.ProductPicture = item.ProductPicture;

            allProducts.Add(productsView);
        }

        foreach (Products item in FastFoods)
        {
            FastFoodsViewModel productsView = new FastFoodsViewModel();
            productsView.ID = item.ID;
            productsView.ProductPrice = item.ProductPrice;
            productsView.ProductName = item.ProductName;
            productsView.Is_Customizable = item.Is_Customizable;
            productsView.Category_Name = item.FoodCategories.CategoryName;
            productsView.ProductPicture = item.ProductPicture;

            allProducts.Add(productsView);
        }

        return View(allProducts);
}

我想知道这里不能添加项目

allProducts.Add(productsView);

想知道如何将Cakes列表添加到CakesViewModel , Pizza to PizzaViewModel``并传递到视图。