public static DateTime GetNgayBatDau(string maNam) { return(NamHocDAL.GetNgayBatDau(maNam).Date); }
public NamHocBUS() { _namHocDAL = new NamHocDAL(); }
public static DateTime GetNgayKetThuc(string maNam) { return(NamHocDAL.GetNgayKetThuc(maNam).Date); }