从另一个绑定的自定义字段填充未绑定字段

Question

我需要在 SalesOrder 屏幕上有一个字段，并且相同的字段也应该出现在各个 SalesOrder 的 Shipment 屏幕上。并且用户应该能够在两个屏幕上更新这些字段。

我在销售订单屏幕上创建了一个绑定字段，用户可以保存它。然后我在发货屏幕上创建了一个未绑定字段来显示销售订单中的文本。为此，我编写了一个 SOShipment_RowSelected 事件，后来为了让用户将其更新到数据库，我编写了 SOShipment_RowUpdated。但是，当我尝试编辑该字段时，它会触发 RowSelected 事件并覆盖编辑并返回相同的原始值。

我已尝试使用 SOShipment_ShipmentNbr_FieldUpdated 和 SOShipment_ShipmentNbr_FieldUpdating 事件，但不是每次都触发。

这里是缓存扩展的代码-

public class SOOrderExtension : PXCacheExtension<SOOrder>
{
	#region UsrNotesText
	[PXDBString(255)]
	[PXUIField(DisplayName = "Pick List Notes")]
	public virtual string UsrNotesText { get; set; }
	public abstract class usrNotesText : IBqlField { }
	#endregion
}
	
public class SOShipmentExtension : PXCacheExtension<SOShipment>
{
	#region UsrNotesText
	[PXString(255)]
	[PXUIField(DisplayName = "Pick List Notes")]
	public virtual string UsrNotesText { get; set; }
	public abstract class usrNotesText : IBqlField { }
	#endregion
}

SOSshipment扩展代码-

public class SOShipmentEntryExtension : PXGraphExtension<SOShipmentEntry>
{
	PXSelect<SOOrder> soOrder;

	protected virtual void SOShipment_RowSelected(PXCache sender, PXRowSelectedEventArgs e)
	{
		if (e.Row != null)
		{
			SOOrder order = PXSelectJoin<SOOrder,
				LeftJoin<SOOrderShipment, On<SOOrder.orderNbr, Equal<SOOrderShipment.orderNbr>,
					And<SOOrder.orderType, Equal<SOOrderShipment.orderType>>>,
				LeftJoin<SOShipment, On<SOOrderShipment.shipmentNbr, Equal<SOShipment.shipmentNbr>>>>,
				Where<SOShipment.shipmentNbr, Equal<Current<SOShipment.shipmentNbr>>>>.Select(Base);

			if (order != null)
			{
				SOOrderExtension orderExt = PXCache<SOOrder>.GetExtension<SOOrderExtension>(order);

				SOShipment soShipment = Base.Document.Current;

				SOShipmentExtension ext = PXCache<SOShipment>.GetExtension<SOShipmentExtension>(soShipment);
				ext.UsrNotesText = orderExt.UsrNotesText;
			}
		}
	}

	protected virtual void SOShipment_RowUpdated(PXCache sender, PXRowUpdatedEventArgs e)
	{
		SOShipment oldRow = (SOShipment)e.OldRow;
		SOShipment newRow = (SOShipment)e.Row;

		if (oldRow != null || newRow != null)
		{
			SOShipmentExtension oldExt = PXCache<SOShipment>.GetExtension<SOShipmentExtension>(oldRow);
			SOShipmentExtension newExt = PXCache<SOShipment>.GetExtension<SOShipmentExtension>(newRow);


			if (oldExt.UsrNotesText != newExt.UsrNotesText)
			{
				{
					SOOrder order = PXSelectJoin<SOOrder,
					LeftJoin<SOOrderShipment, On<SOOrder.orderNbr, Equal<SOOrderShipment.orderNbr>,
						And<SOOrder.orderType, Equal<SOOrderShipment.orderType>>>,
					LeftJoin<SOShipment, On<SOOrderShipment.shipmentNbr, Equal<SOShipment.shipmentNbr>>>>,
					Where<SOShipment.shipmentNbr, Equal<Current<SOShipment.shipmentNbr>>>>.Select(Base);

					soOrder.Current = order;

					if (order != null)
					{
						SOOrderExtension orderExt = PXCache<SOOrder>.GetExtension<SOOrderExtension>(order);

						orderExt.UsrNotesText = newExt.UsrNotesText;
						soOrder.Update(order);
					}
				}
			}
		}
	}
}

有什么建议吗？

Answer 1

诀窍是在别处初始化 UsrNotesText。

您可以使用 PXDefault 属性：

[PXDefault(typeof(Search<SOOrderExtension.usrNotesText, Where< [...] >>))]

或 FieldDefaulting 事件处理程序：

public void SOShipment_UsrNotesText_FieldDefaulting(PXCache sender, PXFieldDefaultingEventArgs e)
{
   e.NewValue = [...]
}

有时您还希望在用户更改未重新触发默认值的关键字段时重新初始化。：

public void SOShipment_ShipmentNbr_FieldUpdated(PXCache sender, PXFieldDefaultingEventArgs e)
{
    SOShipment shipment = e.Row as SOShipment;

    if (shipment != null)
    {
        SOShipmentExtension shipmentExt = PXCache<SOShipment>.GetExtension<SOShipmentExtension>(shipment);

        if (shipmentExt != null)
        {
            shipmentExt.UsrNotesText = [...];
        }
    }
}

在这种情况下，使用 RaiseFieldDefaulting 手动重新触发 FieldDefaulting 事件通常是更好的选择。

但是，您选择初始化的方法避免在 RowSelected 中设置字段值，因为有时会在您不想初始化自定义字段时调用该事件。