format property
Formats the tooltip text.
By default, the tooltip will be rendered with x and y-values.
You can add prefix or suffix to x, y, and series name values in the tooltip by formatting them.
late TooltipBehavior tooltipBehavior;
void initState() {
tooltipBehavior = TooltipBehavior(
enable: true,
format:'point.y %'
);
super.initState();
}
Widget build(BuildContext context) {
return SfCartesianChart(
tooltipBehavior: tooltipBehavior
);
}
Implementation
final String? format;