public static bool XoaCTHD(CTHD_DTO cthd) { return(CTHD_DAL.XoaCTHD(cthd)); }
//Thêm 1 san pham public static bool ThemCTHD(CTHD_DTO cthd) { return(CTHD_DAL.ThemCTHD(cthd)); }
public static bool SuaCTHD(CTHD_DTO cthd) { return(CTHD_DAL.SuaCTHD(cthd)); }
//Lấy DS giảng viên public static List <CTHD_DTO> LayDSCTHD() { return(CTHD_DAL.LayDSCTHD()); }