private void RetrieveCart()
{
if (Session["Cart"] == null)
{
cart = new ShoppingCart();
PersistCart(cart);
}
else
{
using (manager = new ShoppingCartManager())
{
cart = (ShoppingCart)Session["Cart"];
if (cart != null)
{
cart.ITEM_PRICE = manager.CalculateTotal(cart.Items);
cart.SalesTax = Math.Round(manager.CalculateSalesTax(cart.ITEM_PRICE), 2);
cart.Cost = Math.Round(cart.ITEM_PRICE + cart.SalesTax, 2);
}
}
}
}