Acumatica PXCheckUnique -如何在错误消息上显示重复订单Nbr

public PXAction<SOOrder> Persist;
[PXButton]
[PXUIField(DisplayName = "Save", MapEnableRights = PXCacheRights.Update, MapViewRights = PXCacheRights.Update)]
protected virtual IEnumerable persist(PXAdapter adapter)
{
    // 检查订单号是否重复
    SOOrder order = Base.Document.Current;
    SOOrder duplicateOrder = PXSelect<SOOrder,
        Where<SOOrder.orderNbr, Equal<Required<SOOrder.orderNbr>>,
        And<SOOrder.orderType, Equal<Required<SOOrder.orderType>>>>>
        .Select(Base, order.OrderNbr, order.OrderType);

    // 如果存在重复订单记录，设置错误消息
    if (duplicateOrder != null && duplicateOrder.OrderNbr != order.OrderNbr)
    {
        PXUIFieldAttribute.SetError<SOOrder.orderNbr>(Base.Document.Cache, order, "订单号重复，请输入唯一的订单号");
    }

    return Base.Persist(adapter);
}