onLegendTapped property

ChartLegendTapCallback? onLegendTapped

Occurs when the legend item is rendered. Here, you can get the legend’s text, shape, series index, and point index of circular series.

Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
           onLegendTapped: (LegendTapArgs args) => legend(args),
       )
   );
}

void legend(LegendTapArgs args) {
  print(args.pointIndex);
}

Implementation

final ChartLegendTapCallback? onLegendTapped;