How does drill-down work in FusionCharts?
As we had earlier discussed, the columns, bars, or pie wedges on any chart are called data plots of the chart, in FusionCharts parlance. For each such data plot, FusionCharts allows you to define a click event termed as a link. This link helps you define drill-down on the chart for each data plot, and can be configured to initiate various actions such as redirecting the browser window to another web page or invoking a JavaScript function present on the page. These actions are collectively termed as drill-down actions. We will soon see how to define these links and their corresponding actions.
In order to enable drill-down capabilities on your charts, you need to create two sets of charts—parent and descendant (or child) charts.
A parent chart is the aggregate chart that the user sees first. This chart contains aggregate data, which upon click leads to the child chart showing the breakdown of data. In the example that we will soon build for Harry...