partial void DeleteLichSuNguoiDung(LichSuNguoiDung instance);
partial void InsertLichSuNguoiDung(LichSuNguoiDung instance);
partial void UpdateLichSuNguoiDung(LichSuNguoiDung instance);
private void detach_LichSuNguoiDungs(LichSuNguoiDung entity) { this.SendPropertyChanging(); entity.NguoiDung = null; }