How can I bind the tooltip of a datapoint to the value of that datapoint.  The sample column chart below below binds to the "PeoplePerAge" DataSource, where "PeoplePerAge" is a collection of "People" objects, where each "Pelople" object has a Count property and an Age property.  So basically it is column chart where the x-axis is "age" and the y-axis is "count".

I would like the tooltip of each datapoint to show the Count.  Can I accomplish this through binding the Tooltip property of the Series?  Something else?

<igCA:XamChart Name="myChart" Width=500" Height="150">

<igCA:XamChart.Series>

<igCA:Series ChartType="Column" Label="mySeries" DataSource="{Binding Path=PeoplePerAge}" DataMapping="Value=Count;Label=Age">

</igCA:Series>