// GET: Admin/Department/Delete/5
        public ActionResult Delete(int id)
        {
            var back = _appService.Del(id);

            if (back)
            {
                AjaxModel.Statu = "ok";
                //return Content("ok");
            }
            else
            {
                AjaxModel.Statu = "err";
            }
            return(backJson);
        }