public ActionResult ExportToExcel(int?reportMode, int?TopSellingFilterBy, int?SelectedProduct) { ReportViewModel result = ReportViewModel.ExecuteCreate(TopSellingFilterBy, SelectedProduct); if (result != null) { result.GenerateReport(reportMode, TopSellingFilterBy, HttpContext.ApplicationInstance); } else { return(new HttpStatusCodeResult(HttpStatusCode.BadRequest)); } return(View(result)); }