Display linked info in a datatip

Question

hiya
I have a chart and in the chart I have a dates on the horizontal axis, and the series is a numeric value.
I have a renderer to show the value, but i also want to show a linked datafield in the datatips.
My arraycollection comes from a database table - and the array does include a field called 'Comments' - Each day/value has a Comment which I'd like to show in the datatips
Here is my Chart:
      <mx:ColumnChart  id="ccBarSystem"
      height="100%" width="100%" 
      showDataTips="true"  
      creationComplete="{PodContentBase.SystemHistory()}"
      dataTipRenderer="dashboard.renderers.ChartRender" x="19" y="10"   showDataTipTargets="true">
      <mx:horizontalAxis>
      <mx:CategoryAxis id="baraxis"
      dataProvider="{PodContentBase._SystemHistory}"
      c ategoryField="Period"  />
      </mx:horizontalAxis>
      <mx:series>
      <mx:ColumnSeries id="barseries"
      dataProvider="{PodContentBase._SystemHistory}" 
      yField="Breach"
           fillFunction="myFillFunction">           
           </mx:ColumnSeries>
      </mx:series>
         </mx:ColumnChart>
... and here is the renderer:
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="286" height="100" backgroundColor="#241616" backgroundAlpha="0.5">
    <mx:Label x="10" y="10" text="{data.chartItem.yValue}" color="#FFFFFF"/>
    <mx:Label x="10" y="36" text="I WANT MY COMMENTS HERE" color="#FFFFFF"/>   
</mx:Canvas>
Any thoughts?  How do I reference the comments field in the renderer?
cheers
Andrew

Answer 1

I managed to display BP's info. using this code:
see file attached.
I had to create columns and rows manually, to be able to display all info I need.