borderDrawMode property

RangeAreaBorderMode borderDrawMode
final

Border type of area series.

Defaults to BorderDrawMode.top

Also refer BorderDrawMode

Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
           series: <RangeAreaSeries<SalesData, num>>[
               RangeAreaSeries<SalesData, num>(
                 borderDrawMode: RangeAreaBorderMode.all,
               ),
             ],
       ));
}

Implementation

final RangeAreaBorderMode borderDrawMode;