public BLL_Category() { this._connect = new DAL_Connection(); }
public BLL_Menu() { this._connect = new DAL_Connection(); }
public BLL_KetQuaHocTap() { _connect = new DAL_Connection(); }
public BLL_Tags() { _connect = new DAL_Connection(); }
public BLL_PhieuTuVan() { this._connect = new DAL_Connection(); }