selectedBorderWidth property

double? selectedBorderWidth
final

Border width of the selected data points or series.

Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
           series: <BarSeries<SalesData, num>>[
               BarSeries<SalesData, num>(
                 selectionBehavior: SelectionBehavior(
                   selectedColor: Colors.red,
                   selectedBorderWidth: 2
                 ),
               ),
             ],
       ));
}

Implementation

final double? selectedBorderWidth;