public ActionResult checkUserName(string loginuserName, int user_id) { // if (userbll.getUserBYName(loginuserName) == null) if (userbll.getUserByID(user_id) == null)//check if it creat only { return(Json(true, JsonRequestBehavior.AllowGet)); } else { return(Json(false, JsonRequestBehavior.AllowGet)); } }