/// <summary>
/// 二楼托盘组入库申请，判断是否有排程，小车未接货的任务。
/// </summary>
/// <param name="BillNo"></param>
/// <returns></returns>
public string GetPalletInTask()
{
using (PersistentManager pm = new PersistentManager())
{
TaskDao dao = new TaskDao();
return dao.GetPalletInTask();
}
}