borderWidth property

double borderWidth
final

Customizes the border width of the marker.

Defaults to 2.

@override
Widget build(BuildContext context) {
  return Scaffold(
    body: Center(
       child: SfSparkAreaChart(
      borderWidth: 2,
      marker: SparkChartMarker(
         borderWidth: 3,
         borderColor: Colors.red,
         displayMode: SparkChartMarkerDisplayMode.all),
     data: <double>[18, 24, 30, 14, 28],
   )),
 );
}

Implementation

final double borderWidth;