public IHttpActionResult Delete([FromUri] int id)
        {
            LOAITHANHVIEN ltv = (from s in db.LOAITHANHVIENs where s.MA == id select s).First();

            ltv.DAXOA = true;
            db.SaveChanges();

            return(Ok());
        }
        public IHttpActionResult Add([FromBody] LOAITHANHVIENModel ltv)
        {
            Mapper.CreateMap <LOAITHANHVIENModel, LOAITHANHVIEN>();
            LOAITHANHVIEN _ltv = Mapper.Map <LOAITHANHVIENModel, LOAITHANHVIEN>(ltv);

            db.LOAITHANHVIENs.Add(_ltv);
            db.SaveChanges();

            return(Ok());
        }
        public IHttpActionResult Update([FromBody] LOAITHANHVIENModel news_ltv)
        {
            Mapper.CreateMap <LOAITHANHVIENModel, LOAITHANHVIEN>();
            LOAITHANHVIEN _news_ltv = Mapper.Map <LOAITHANHVIENModel, LOAITHANHVIEN>(news_ltv);
            LOAITHANHVIEN ltv       = (from s in db.LOAITHANHVIENs where s.MA == _news_ltv.MA select s).First();

            ltv.MA      = _news_ltv.MA;
            ltv.TENLOAI = _news_ltv.TENLOAI;
            ltv.DAXOA   = _news_ltv.DAXOA;

            db.SaveChanges();
            return(Ok());
        }