public List<CartItem> UpdateCartItems()
        {
            ShoppingCartActions usersShoppingCart = new ShoppingCartActions();
            String cartId = usersShoppingCart.GetCartId();

            ShoppingCartActions.ShoppingCartUpdates[] cartUpdates = new ShoppingCartActions.ShoppingCartUpdates[CartList.Rows.Count];
            for (int i = 0; i < CartList.Rows.Count; i++)
            {
                IOrderedDictionary rowValues = new OrderedDictionary();
                rowValues = GetValues(CartList.Rows[i]);
                cartUpdates[i].ProductId = Convert.ToInt32(rowValues["ProductID"]);

                CheckBox cbRemove = new CheckBox();
                cbRemove = (CheckBox)CartList.Rows[i].FindControl("Remove");
                cartUpdates[i].RemoveItem = cbRemove.Checked;

                TextBox quantityTextBox = new TextBox();
                quantityTextBox = (TextBox)CartList.Rows[i].FindControl("PurchaseQuantity");
                cartUpdates[i].PurchaseQuantity = Convert.ToInt16(quantityTextBox.Text.ToString());
            }
            usersShoppingCart.UpdateShoppingCartDatabase(cartId, cartUpdates);
            CartList.DataBind();
            lblTotal.Text = String.Format("{0:c}", usersShoppingCart.GetTotal());
            return usersShoppingCart.GetCartItems();
        }
    public bool ShortcutExpressCheckout(string amt, ref string token, ref string retMsg)
    {
        if (bSandbox)
        {
            pEndPointURL = pEndPointURL_SB;
            host = host_SB;
        }

        string returnURL = "http://localhost:53417/Checkout/CheckoutReview.aspx";
        string cancelURL = "http://localhost:53417/Checkout/CheckoutCancel.aspx";

        NVPCodec encoder = new NVPCodec();
        encoder["METHOD"] = "SetExpressCheckout";
        encoder["RETURNURL"] = returnURL;
        encoder["CANCELURL"] = cancelURL;
        encoder["BRANDNAME"] = "Wingtip Toys Sample Application";
        encoder["PAYMENTREQUEST_0_AMT"] = amt;
        encoder["PAYMENTREQUEST_0_ITEMAMT"] = amt;
        encoder["PAYMENTREQUEST_0_PAYMENTACTION"] = "Sale";
        encoder["PAYMENTREQUEST_0_CURRENCYCODE"] = "USD";

        // Get the Shopping Cart Products
        QueensBookStore.Logic.ShoppingCartActions myCartOrders = new QueensBookStore.Logic.ShoppingCartActions();
        List<CartItem> myOrderList = myCartOrders.GetCartItems();

        for (int i = 0; i < myOrderList.Count; i++)
        {
            encoder["L_PAYMENTREQUEST_0_NAME" + i] = myOrderList[i].Product.ProductName.ToString();
            encoder["L_PAYMENTREQUEST_0_AMT" + i] = myOrderList[i].Product.UnitPrice.ToString();
            encoder["L_PAYMENTREQUEST_0_QTY" + i] = myOrderList[i].Quantity.ToString();
        }

        string pStrrequestforNvp = encoder.Encode();
        string pStresponsenvp = HttpCall(pStrrequestforNvp);

        NVPCodec decoder = new NVPCodec();
        decoder.Decode(pStresponsenvp);

        string strAck = decoder["ACK"].ToLower();
        if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
        {
            token = decoder["TOKEN"];
            string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token;
            retMsg = ECURL;
            return true;
        }
        else
        {
            retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
                "Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
                "Desc2=" + decoder["L_LONGMESSAGE0"];
            return false;
        }
    }
 public List<CartItem> GetShoppingCartItems()
 {
     ShoppingCartActions actions = new ShoppingCartActions();
     return actions.GetCartItems();
 }