[FIXED] Disable comboBox if value is null and contains selected value

Issue

I have two comboBox example comboBox a and b. I want to disable comboBox b when comboBox an is null and when selected specific value from comboBox a.

comboboxb.disableProperty().bind(
        JavaFxObserver.toBinding(
        JavaFxObservable.nullableValuesOf(comboboxa.getSelectionModel().selectedItemProperty())
            .map(test -> !comboboxaEnum.isPresent() || comboboxaEnum.equals(comboboxaEnum.XX) ))
    );

It is only disable when comboBox is null.

Solution

I managed to disable the combobox using Easybind

 comboboxb.disableProperty()
    .bind(EasyBind.map(comboboxa.getSelectionModel().selectedItemProperty(),
        comboboxaEnum ->
            comboBoxAEnum == comboBoxAEnum.XX || comboBoxAEnum == null));

Answered By - syafiqah
Answer Checked By - Gilberto Lyons (JavaFixing Admin)