public CauHoi_BAL_DLL()
 {
     db = new DB_QLTracNghiemDataContext();
 }
 public GiaoVien_BAL_DLL()
 {
     db = new DB_QLTracNghiemDataContext();
 }
예제 #3
0
 public KetQua_BAL_DLL()
 {
     db = new DB_QLTracNghiemDataContext();
 }