Chart Options
Chart Options are only available through the Chart Wizard when a chart is dropped on the page from the Toolbox.
If you need to modify a property which is not listed there, you can override the InitializeChartControl method in the appropriate class: TableControlRow class for charts in a repeater row, TableControl or RecordControl class for charts in records or tables outside of repeaters and on a page class in code behind for charts on the page.
This method is being called from Set…Chart method in the aforementioned classes. The chart is populated by Set…Chart method.