Using oModel.ArrayCollection.refresh() in Cairngorm Command

Please excuse my lack of familiarity with Flex, but I have an interesting problem maybe one of you can help me with. I am using Flex 2 with Cairngorm 2. In my view, I have a datagrid and multiple filtering controls. The filtering works great. A code-behind handles the filtering control change events.

When a user chooses a record in the datagrid, the details of that record are displayed and the user is able to edit and save the changes:

When the save button is clicked, the database service (updateWidget) is invoked and the changes are saved in the database. Upon the successful result from the server, another service call (getWidgets) is dispatched and the service returns the list of Widgets, which are then re-assigned to oModel.WidgetVOList : ArrayCollection from the onResult() method in the getWidgetsCommand.

The problem is that I want to also "re-apply" the filter upon the latest oModel.WidgetVOList update. I have tried a host of fixes, and the only one that would actually make any sense to me is to call oModel.WidgetVOList.refresh() from the onResult() method in the getWidgetsCommand.

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Please see code snippet
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When the onResult method of the getWidgetsCommand executes, the execution of the code seems to be reversed, as if the refresh() (filtering) occurs before the oModel.WidgetVOList = event as ArrayCollection.

I am assuming I am missing a simple piece of the puzzle, or doing something fundamentally wrong. Please inquire if you need any more information. Any suggestions are appreciated!
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/* GetWidgetsCommand */
public function onResult( event : * = null ) : void{
			oModel.WidgetVOList = event as ArrayCollection;
			oModel.WidgetVOList.refresh()
		}