You can try using the chart client side events:
<ClientSideEvents ClientOnMouseClick="UltraChart1_ClientOnMouseClick" />
...
<script type="text/javascript" id="igClientScript">
<!--
{
//Add code to handle your event here.
}
// -->
</script>
In this case you can redirect to a new page that shows next chart.
Yes, you can use this too.
In ChartDataClicked event you can get the info which column/row/value is clicked.
If you use ChartDataClicked event you can get all that you need from the second parameter.
UltraChart1_ChartDataClicked(ByVal sender As Object, ByVal e As Infragistics.UltraChart.Shared.Events.ChartDataEventArgs) Handles UltraChart1.ChartDataClicked
You can try looking at:
http://help.infragistics.com/Help/NetAdvantage/NET/2008.3/CLR3.5/html/Chart_Drilldown.html