Newbie: trying to use XML in a Line Series.

Question

So, I have a similar question to my last one, how to connect some XML from an RPC to a line series. The XML comes across fine. Problem is, why does it not work below?
The XML is simple, and I use dataProvider="{tsRPC.lastResult.TIMESERIES}"....then yField="DataPoint.Value"...but it does not work
I have seen some examples that use the "data.something"...where data must be some internal object. I tried various combinations of everything.
<TIMESERIES>
  <DataPoint Date="38000" Value="34.51"/>
  <DataPoint Date="38001" Value="35.06"/>
</TIMESERIES>
    <mx:HTTPService id="tsRPC"
        url="http://localhost:6574/Test2/TimeSeriesServer"
        resultFormat="e4x">
    </mx:HTTPService>
<mx:Panel title="LineChart and AreaChart Controls Example3"
        height="491" width="729" layout="horizontal" x="350" y="84">
        <mx:LineChart id="linechart" height="100%" width="100%"
            paddingLeft="5" paddingRight="5"
            showDataTips="true" dataProvider="{tsRPC.lastResult.TIMESERIES}">      
        <mx:horizontalAxis>
            <mx:CategoryAxis id="ca" categoryField="DataPoint.Date" title="Date" />
        </mx:horizontalAxis>
            <mx:series>
                <mx:LineSeries yField="DataPoint.Value" form="curve" displayName="Profit" lineStroke="{s1}"/>
            </mx:series>
        </mx:LineChart>
        <mx:Legend dataProvider="{linechart}"/>
    </mx:Panel>

Answer 1

thanks paul.
I am learning now about e4x. For those who don't know...
http://www.actionscript.org/resources/articles/222/1/Intro-to-E4X/Page1.html
For those that don't know E4X stands for ECMAScript for XML and this specification introduces some new functionality that makes working with XML a lot simpler. New to AS3 are the XML, XMLList,QSpace and Namespace E4X classes. E4X not only makes life simpler but provides greater code consistency and familiarity (we can use dot syntax more similiar to ActionScript).