partial void Deletecheck_bill_fee_month(check_bill_fee_month instance);
partial void Insertcheck_bill_fee_month(check_bill_fee_month instance);
partial void Updatecheck_bill_fee_month(check_bill_fee_month instance);
private void detach_check_bill_fee_month(check_bill_fee_month entity) { this.SendPropertyChanging(); entity.check_bill_month = null; }