public virtual int Create(Author entity)
 {
     try
     {
         object insertedItem = Context.Authors.Add(entity);
         Context.SaveChanges();
         return(insertedItem != null?int.TryParse(insertedItem.ToString(), out int result) ? result : 0 : 0);
     }
     catch (Exception ex)
     {
         throw;
     }
 }
        public void DatPhong(DatPhong dp)
        {
            DatPhong _d = new DatPhong();

            //KhachHang _k = new KhachHang();
            _d.NgayNhan = dp.NgayNhan;
            _d.NgayTra  = dp.NgayTra;
            _d.NgayDat  = dp.NgayDat;

            _d.MaKH       = dp.MaKH;
            _d.SoPhong    = dp.SoPhong;
            _d.MaPhong    = dp.MaPhong;
            _d.SoNguoiLon = dp.SoNguoiLon;
            _d.SoTreEm    = dp.SoTreEm;
            Model m = new Model();

            m.DatPhong.Add(_d);
            m.SaveChanges();
        }