public ActionResult Delete(string banners, string returnUrl) { var idArray = banners.Split(',') .Where(a => !string.IsNullOrEmpty(a)) .Select(a => a.ToInt32()).Distinct(); foreach (var id in idArray) { var article = jlService.GetBanner(id); if (article != null) { jlService.DeleteBanner(id); } } if (Url.IsLocalUrl(returnUrl)) { return(Redirect(returnUrl)); } return(RedirectToAction("index")); }