如何异步填充虚拟模式下的ListView？

I'd like to display records from our database in a listview - but retrieves can take a long time. I can use RetrieveVirtualItem to tell me when a new ListViewItem is needed, add a dummy item, and start a retrieve; but what do I do with the record when the database returns it? I can't update the ListView's Items collection while the ListView is in VirtualMode. Is there a way to tell the ListView to reload an item? Or can I just keep a reference to the ListViewItem and populate that? If neither of those would work, how else could I populate a ListView in virtual mode asynchronously?I'd like to display records from our database i