private int SoSanhTheoSoSao_TangDan(ThongTinPhongTrong x, ThongTinPhongTrong y)
{
int ret = x.SoSao.CompareTo(y.SoSao);
if (ret == 0)
{
return(x.TenKS.CompareTo(y.TenKS));
}
return(ret);
}
private int SoSanhTheoThanhPho_GiamDan(ThongTinPhongTrong x, ThongTinPhongTrong y)
{
int ret = y.ThanhPho.CompareTo(x.ThanhPho);
if (ret == 0)
{
return(x.TenKS.CompareTo(y.TenKS));
}
return(ret);
}
