majorTickLines property Null safety

MajorTickLines majorTickLines

Customizes the appearance of the major tick lines.

Major ticks are small lines used to indicate the intervals in an axis. Major tick lines are visible by default.

Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
          primaryXAxis: NumericAxis(majorTickLines: const MajorTickLines(width: 2)),


final MajorTickLines majorTickLines;