更新DAC扩展

Question

我正在尝试通过代码更新DAC扩展中的一些自定义字段，它不是保存到数据库的更改。代码可以很好地检索扩展和数据。我错过了什么-我必须以某种方式使用扩展更新myLS (我以为它会自动这么做)？

myLS = LineItemSerial.Select(); 
INItemLotSerialExt myext = myLS.GetExtension<INItemLotSerialExt>();

myext.UsrFrame1 = "xyz"; 
myext.UsrFrame2 = "zzz"; 
myext.UsrFrame3 = "yyy"; 

LineItemSerial.Update(myLS);
graph.Actions.PressSave();

Answer 1

你应该对Acumatica的缓存说你想要更新值：

                LineItemSerial.Cache.SetValueExt(myLS , "UsrFrame1", "xyz");
                LineItemSerial.Cache.SetValueExt(myLS , "UsrFrame2 ", "zzz");
                LineItemSerial.Cache.SetStatus(myLS , PXEntryStatus.Modified);
                LineItemSerial.Cache.Update(myLS);
                LineItemSerial.Cache.IsDirty = true;

注意：LineItemSerial.Cache.IsDirty = true；对于某些情况可以省略，但根据我的经验，这通常是有帮助的。

Answer 2

INItemLotSerialExt myext = LineItemSerial.GetExtension<INItemLotSerialExt>(myLS); //if LineItemSerial is a view related to the DAC. I hope LineItemSerial is a public view defined in the graph as you are trying to save the changes when u press the save of graph.

或

INItemLotSerialExt myext = PXCache<INItemLotSerial>.GetExtension<INItemLotSerialExt>(myLS);

这不是获得扩展的礼仪方式吗？

来自文档

GetExtension(对象)

InventoryItem item = cache.Current as InventoryItem;
InventoryItemExtension itemExt = 
    cache.GetExtension<InventoryItemExtension>(item);

或

GetExtension(表)

下面的代码获取与基本数据记录的给定实例相对应的扩展数据记录。

InventoryItem item = cache.Current as InventoryItem;
InventoryItemExtension itemExt =
    PXCache<InventoryItem>.GetExtension<InventoryItemExtension>(item);

Answer 3

试试这样的..。

    ContractExtension cExt = PXCache<PMProject>.GetExtension<ContractExtension>(project);    
    ARInvoiceEntry graph = PXGraph.CreateInstance<ARInvoiceEntry>();
    graph.Document.Current = graph.Document.Search<ARInvoice.projectID, ARInvoice.docDate>(projectID.Value, invoiceDate.Value);
    if(graph.Document.Current !=null)
    {
          ARInvoice i = graph.Document.Current;
          i.InvoiceNbr = cExt.CustomerPO;
          graph.Document.Update(i); 
          graph.Actions.PressSave();
     }