[flexcoders] Problem: renderProvider and hierarchical data objects

[Matthew]

Hi - 

I'm having a problem with an AdvancedDataGrid that has a DataGrid as a 
renderProvider. My dataProvider for the ADG is an ArrayCollection of the below 
object. 

[Bindable]
public class MyRecord implements ValueObject
{

    public var recall_id:int;
    public var recall_type:String;
    public var selected:Boolean = false;
    public var qty:Number;
    public var curr_qty:Number;
    public var due_date:String;
    public var status:String;
    public var comments:String;
    public var groupedTrades:ArrayCollection = new ArrayCollection();
}

<mx:dataProvider>       

     <mx:HierarchicalData 
      source="{model.recalls}"
      childrenField="groupedTrades"/>      

</mx:dataProvider>

Here's my renderProvider code:

<mx:rendererProviders>

<mx:AdvancedDataGridRendererProvider 
    depth="2" 
    columnIndex="1" 
     renderer="com.controls.GroupedTradesGrid"
      columnSpan="0"/>
</mx:rendererProviders> 

In this GroupedTradesGrid I override this method to set the dataProvider:

override public function set data(value:Object):void
        {
            // If using the array data source, use this instead:
            trades_dg.dataProvider = value;
        }

The problem is that my renderProvider's method is invoked for every record in 
the dataProvider of the ADG it is part of. This amounts to a brand new DataGrid 
for each trade in groupedTrades...instead of 1 DataGrid that has all trades. 

I'm very frustrated as I've asked around on other forums and can't seem to get 
a response. Anyone have any ideas? I'm kind of at my wits end. 

Thank you for any helpful tipsF!

How do I resolve this? I'm perplexed.