onMarkerRender property

ChartMarkerRenderCallback? onMarkerRender
final

Occurs when the marker is rendered. Here, you can get the marker pointIndex shape, height and width of data markers.

Widget build(BuildContext context) {
 return Container(child: SfCartesianChart(
   onMarkerRender: (MarkerRenderArgs args) {
     if (args.pointIndex == 2) {
       args.markerHeight = 20.0;
       args.markerWidth = 20.0;
       args.shape = DataMarkerType.triangle;
     }
   },
 ));
}

Implementation

final ChartMarkerRenderCallback? onMarkerRender;