alwaysVisibleSeries property
Gets a list of series IDs that should always be visible.
Implementation
List<String>? get alwaysVisibleSeries => _alwaysVisibleSeries;
Sets a list of series IDs that should always be visible and therefore cannot be hidden.
This also shows any series that should always be visible in case it was previously hidden.
Implementation
set alwaysVisibleSeries(List<String>? alwaysVisibleSeries) {
_alwaysVisibleSeries = alwaysVisibleSeries;
_alwaysVisibleSeries?.forEach(showSeries);
}