public void Del_ByCode(HttpContext context)
        {
            ExtendPropertiesBO aExtendPropertiesBO = new ExtendPropertiesBO();
            String jSonString = "";
            string Code = context.Request.QueryString["Code"].ToString();
            int ret = aExtendPropertiesBO.Del_ByCode(Code);

            if (ret > 0)
            { jSonString = "{\"status\": \"success\"}"; }

            if (ret <= 0)
            { jSonString = "{\"status\":\"error\" ,\"message\":\"" + ret.ToString() + "\"}"; }

            context.Response.Write(jSonString);
        }