public ActionResult Update(bq_Quiz model) { //get image upload name List <string> listImage = (List <string>)Session["photos-upload"]; var centerIcon = (listImage.Count > 0) ? listImage.First() : model.EnglishCenterIcon; if (centerIcon != null && ModelState.IsValid) { bl_Quiz blquiz = new bl_Quiz(); var id = blquiz.Update2( model.QuizId, model.Name, model.EnglishCenter, centerIcon, model.EnglishCenterDescription); return(Redirect("/quiz/manage")); } return(View(model)); }