could you look at these codes:
public ActionResult AddToCart(int id)
// Retrieve the album from the database
var addedAlbum = storeDB.Albums
.Single(album => album.AlbumId == id);
// Add it to the shopping cart
var cart = ShoppingCart.GetCart(this.HttpContext);
// Go back to the main store page for more shopping
My question is why we don't transfer the id value to the model directory, it converts to entity object first and querys the id in the model?
I think that is make sure the id is vaild, is it correct? Thanks!