// GET: 客戶聯絡人/Details/5
        public ActionResult Details(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            var 客戶聯絡人 = contactrepo.GetSingleDataByContactId(id.Value);

            if (客戶聯絡人 == null)
            {
                return(HttpNotFound());
            }
            return(View(客戶聯絡人));
        }