ShoppingCart.XmlDocumentationComments.cs

public class ShoppingCartWithCustomerTraceLogging : ShoppingCart
{
    /// <summary>
    /// Preferred way to add item to a customers shopping cart
    /// Will add the needed extra logging required.
    /// </summary>
    /// <param name="item"> A CartItem that contains the qty, sku, and item price and item total price</param>
    public override void AddCartItem(CartItem item)
    {
        base.AddCartItem(item);
        Track(CustomerAction.CartItemAddedToCart);
    }
    
    void Track(Action action)
    {
        CustomerTrackingService.SignalTotalInShoppingCartUpdated(action, CartTotal);
    }
}