public HttpResponseBase GetProductDetialText()
        {
            ProductQuery query = new ProductQuery();
            string json = string.Empty;
            DataTable result = new DataTable();
            string notFind = string.Empty;
            try
            {
                _productMgr = new ProductMgr(connectionString);
                if (!string.IsNullOrEmpty(Request.Params["product_IDS"]))
                {
                    result = _productMgr.GetProductDetialText(query, Request.Params["product_IDS"], out notFind);
                    if (result != null)
                    {
                        for (int i = 0; i < result.Rows.Count; i++)
                        {
                            result.Rows[i][0] = result.Rows[i][0].ToString().Replace("<br/>", "\n");
                        }
                        json = "{success:true,data:" + JsonConvert.SerializeObject(result, Newtonsoft.Json.Formatting.Indented) + "}";

                    }
                    else
                    {
                        json = "{success:false,data:" + JsonConvert.SerializeObject(notFind, Newtonsoft.Json.Formatting.Indented) + "}";
                    }
                }

            }
            catch (Exception ex)
            {

                Log4NetCustom.LogMessage logMessage = new Log4NetCustom.LogMessage();
                logMessage.Content = string.Format("TargetSite:{0},Source:{1},Message:{2}", ex.TargetSite.Name, ex.Source, ex.Message);
                logMessage.MethodName = System.Reflection.MethodBase.GetCurrentMethod().Name;
                log.Error(logMessage);
                json = "{success:false,data:[]}";
            }
            this.Response.Clear();
            this.Response.Write(json);
            this.Response.End();
            return this.Response;
        }