public List <KhachHang> getDanhSachDoan(int idDoan) { List <KhachHang> listKH = new List <KhachHang>(); using (var db = new ManageHotelEntities()) { var list = db.sp_LayDanhSachDoan(idDoan).ToList(); foreach (var kh in list) { listKH.Add(createKhachHang(kh)); } return(listKH); } }