public static bool LuuPhieuBeNgoan(TheoDoiThang phieubengoan)
        {
            DataTable dt = PhieuBeNgoanDAL.LuuPhieuBeNgoan(phieubengoan);

            foreach (DataRow row in dt.Rows)
            {
                if (row.ItemArray[0].ToString().Trim() == "0")
                {
                    return(true);
                }
            }

            return(false);
        }
 public static void XoaPhieuBeNgoan(string value, string v1, string v2)
 {
     PhieuBeNgoanDAL.XoaPhieuBeNgoan(value, v1, v2);
 }
 public static object LayPhieuBeNgoanTheoLop(Lop lop, string datetime)
 {
     return(PhieuBeNgoanDAL.LayPhieuBeNgoanTheoLop(lop, datetime));
 }
 public static object TaoPhieuBeNgoanMoi(Lop lop, string datetime)
 {
     return(PhieuBeNgoanDAL.TaoPhieuBeNgoanMoi(lop, datetime));
 }