mark property
Which mark series this tooltip reacts to.
This is an index in Chart.marks.
The crosshair can only reacts to one mark series.
If null, the first mark series is set by default.
Implementation
int? mark;
Which mark series this tooltip reacts to.
This is an index in Chart.marks.
The crosshair can only reacts to one mark series.
If null, the first mark series is set by default.
int? mark;