header property
Header of the tooltip. By default, the series name will be displayed in the header.
late TooltipBehavior tooltipBehavior;
void initState() {
tooltipBehavior = TooltipBehavior(
enable: true,
header: 'Default'
);
super.initState();
}
Widget build(BuildContext context) {
return SfCartesianChart(
tooltipBehavior: tooltipBehavior
);
}
Implementation
final String? header;