public ActionResult EditSusbscriber(M_Subscriber model) { if (model != null) { try { model.Update(); return(RedirectToAction("ViewSubscribers/" + model.ListID)); } catch (M_CustomException ex) { ModelState.AddModelError("editsub", ex.message); return(RedirectToAction("EditSusbscriber/" + model.SubscriberID)); } } else { ModelState.AddModelError("modelnull", "Error while processing request contact administrator"); return(RedirectToAction("Index")); } }