public ActionResult ModifyInvoiceContent([DataSourceRequest] DataSourceRequest request, ConfigInvoiceContentModel model)
        {
            if (model != null && ModelState.IsValid)
            {
                var service = new ConfigInvoiceContentSevice();

                var cost = DataTransfer.Transfer<Config_Invoice_Content>(
                    model,
                    typeof(ConfigInvoiceContentModel));

                service.Modify(cost);
            }

            return Json(new[] { model }.ToDataSourceResult(request, ModelState));
        }