choiceSelectorAll property

@override Widget choiceSelectorAll

Returns the choices selector widget

Implementation

@override
Widget get choiceSelectorAll {
  return Checkbox(
    activeColor: choiceActiveStyle?.color ?? defaultActiveChoiceStyle.color,
    value: selection.length == choices.length
        ? true
        : selection.length == 0
            ? false
            : null,
    tristate: true,
    onChanged: (value) {
      if (value == true) {
        selection.merge(choices.items);
      } else {
        selection.clear();
      }
    },
  );
}