When you add a addSeriesSelectionHandler to a BarSeries, all you get in the event is the value of what was clicked.
This is not very useful for doing chart drilldowns where you may want to show a chart with more detail for the x-axis category or date corresponding to the click and the series item itself. The value of what was clicked is not unique (could be the same for more than one category or date or series).
Getting the index of what was clicked (selected) is far more informative. It can be used to determine which model in the ListStore corresponds to the click and what property (series) was involved.
Please see the method onMouseDown and the method onSeriesClick in the attached file. This is how I plan to support chart drilldowns.
Will this approach work with all chart types?
Is there a better way?
Or do you plan to enhance the event to be more informative?
Good point. Especially as the series renderers do contain the appropriate index for the sprite. I will include it in the next release. Also I am curious what you mean by the ToolTipExample not completely working. The only bug I know of is in IE8. Thanks.