protected void btnAddBasket_Click(object sender, EventArgs e) { ShoppingBasket basket = ShoppingBasket.GetBasket(); BasketItem item = basket[hdnID.Value]; if (item == null) { Product product = new Product { ID = int.Parse(hdnID.Value), Title = hdnTitle.Value, Description = hdnDescription.Value, Price = decimal.Parse(hdnPrice.Value), ImagePath = hdnImage.Value }; basket.AddItem(product, 1); } else { item.AddQuantity(1); } Response.Redirect("Basket.aspx"); }