setDisabledOption method
setDisabledOption method MultiSelectController is used to set disabled option.
Implementation
void setDisabledOption(ValueItem<T> disabledOption) {
if (!value._options.contains(disabledOption)) {
throw Exception('Cannot disable option that is not in the options list');
}
value._disabledOptions.add(disabledOption);
notifyListeners();
}