partial void DeleteCONGNO(CONGNO instance);
partial void UpdateCONGNO(CONGNO instance);
private void detach_CONGNOs(CONGNO entity) { this.SendPropertyChanging(); entity.KHACHHANG = null; }
partial void InsertCONGNO(CONGNO instance);
private void attach_CONGNOs(CONGNO entity) { this.SendPropertyChanging(); entity.KHACHHANG = this; }