optionGroups property

@override List<OptionGroup<T>> get optionGroups

The groups of available options.

Do not modify this list from outside of this class. Instead, create a SelectionOptions from a stream. This list may be replaced by the data provider, so consider this list reference to be ephemeral, with the SelectionOptions object's property as the source of truth.

Implementation

@override
List<OptionGroup<T>> get optionGroups => _optionGroups;

@override set optionGroups (List<OptionGroup<T>> value)

Implementation

@override
set optionGroups(List<OptionGroup<T>> value) {
  var oldValue = _optionGroups;
  if (oldValue != value) {
    _optionGroups = value;
    //_flattenedList = _optionGroups != null
    //    ? _optionGroups.expand((i) => i).toList()
    //    : <T>[];
    _flattenedList = _optionGroups.expand((i) => i).toList();
    _controller.add(_optionGroups);
  }
}