Adavnced Datagrid: How to access hierarical data from the renderer

Question

I have an advanced data grid with hierarical data and a renderer that spans all the row when the the heirrical arrow icon is clicked. I want to access the level 1 of data from within the renderer to set data in UI elements. Please let me knwo how to do this.
My data looks like the  following :
private var dpHierarchy:ArrayCollection= new ArrayCollection([
                {type:"Unassigned", date:11-21-2009, payee: "CREDITCARD debit 328", payment:70, deposit:0,accout:"My Visa", envelope:"My Envelope", children:[ 
                    {checkno:"Unassigned",note:11-21-2009}]}

Answer 1

You need to add an event listener to the httpservice, the calls to services are asynchronous so that's the reason you'll need to add to your HttpService something like this:
result="myResultHandler(event)"
and then create the result handler something like this;
private function myResultHandler(event:ResultEvent):void{
      Alert.show(loginRequest.lastResult.user,"Testing");
Although you could omit the event parameter. In the DataGrid your code works because the binding mechanisms detect that the data has change and update the DataGrid, but in this case once you call your function there isn't a way that Flash Player will execute it again withouth calling the function again.