public decimal GetTotal()
{
/*
// Multiply album price by count of that album to get
// the current price for each of those albums in the cart
// sum all album price totals to get the cart total
decimal? total = (from cartItems in storeDB.Carts
where cartItems.CartId == ShoppingCartId
select (int?)cartItems.Count * cartItems.Album.Price).Sum();
return total ?? decimal.Zero;
*/
decimal? total = (from c in GetCartItems() select (c.Count * c.Album.Price)).Sum();
return total ?? decimal.Zero;
}