public static void BtnIncreaseOnClick(String BookID)
{
CustomerDAO dao = new CustomerDAO();
String UserID = HttpContext.Current.Session["ID"].ToString();
Customer customer = dao.GetCustomerByUserID(UserID);
dao.AddNewItemToCart(customer.CustomerID, BookID);
}
public static String AddBookToCart(String BookID)
{
CustomerDAO dao = new CustomerDAO();
if (HttpContext.Current.Session["Login"] != "Khách hàng")
{
return("Bạn chưa đăng nhập");
}
String UserID = HttpContext.Current.Session["ID"].ToString();
Customer customer = dao.GetCustomerByUserID(UserID);
dao.AddNewItemToCart(customer.CustomerID, BookID);
return(JsonConvert.SerializeObject(dao.GetCustomerByUserID(UserID).Cart));
}