public ActionResult AddInvoiceContent([DataSourceRequest] DataSourceRequest request, ConfigInvoiceContentModel model)
        {
            try
            {
                if (model != null)
                {
                    var service = new ConfigInvoiceContentSevice();

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

                    model.ID = service.Add(invoice);
                }

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