This demo illustrates how to create a drill-down chart.
The main chart is a Pie, whose series points display min, max or average price in every category. The Pie chart allows you to compare the percentage values of different point arguments in the same series, and to illustrate these values as easy to understand pie slices.
Clicking on a pie slice invokes the Bar chart, which displays all product prices in the selected category. To return to the Pie chart, click the Back to the main view... hyperlink.