public static void Nguoi_Phong_Add(string ListPhongID, string ListNguoiPhongName, string ListCongThem, string CongThemTiepTheo)
 {
     Nguoi_PhongDAL doit = new Nguoi_PhongDAL();
     doit.Nguoi_Phong_Add(ListPhongID, ListNguoiPhongName, ListCongThem, CongThemTiepTheo);
 }
 public static List<Nguoi_PhongInfo> Nguoi_Phong_GetItemByPhongID(int PhongID)
 {
     Nguoi_PhongDAL doit = new Nguoi_PhongDAL();
     return doit.Nguoi_Phong_GetItemByPhongID(PhongID);
 }