public void GetLP(HttpContext context)
        {
            List <GiftInfo>      allGift              = GiftHelper.GetAllGift();
            StringBuilder        stringBuilder        = new StringBuilder();
            JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();

            javaScriptSerializer.Serialize(allGift, stringBuilder);
            context.Response.Write(stringBuilder);
            context.Response.End();
        }