/// <summary>
/// ����ʱ���ѯ�ֿ���ⵥ�ݺ�
/// </summary>
/// <returns></returns>
public DataTable GetOutBillNo(string orderDate)
{
using (PersistentManager pm = new PersistentManager())
{
DownOutBillDao dao = new DownOutBillDao();
return dao.GetOutBillNo(orderDate);
}
}
