public List<CartItem> UpdateCartItems()
        {
            using (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();
            }
        }
  protected void Page_Load(object sender, EventArgs e)
  {
      using (ShoppingCartActions usersShoppingCart = new ShoppingCartActions())
      {
          decimal cartTotal = 0;
          cartTotal = usersShoppingCart.GetTotal();
          if (cartTotal > 0)
          {
              lblTotal.Text = "$"+cartTotal;
          }
          else
          {
              lblTotal.Text = "";
              LabelTotalText.Text = "";
              ShoppingCartTitle.InnerText = "Shopping Cart total";
          }
      }
 //     UpdateBtn.Visible = false;
  }
 protected void CheckoutBtn_Click(object sender, ImageClickEventArgs e)
 {
     using (ShoppingCartActions usersShoppingCart = new ShoppingCartActions())
     {
         Session["payment_amt"] = usersShoppingCart.GetTotal();
     }
     Response.Redirect("Checkout/CheckoutStart.aspx");
 }