Javafx combobox not updating dropdown size upon change on realtime?

Question

I am using Javafx v8.0.25-b18.

The problem I occur is that the size of the dynamic combox\'s dropdown list doesn\'t change, so if I had initially two items in the dropdo

Answer 1

I had same problem and I solved it with a quick trick. Just try to show and immediately hide !

add.setOnAction(new EventHandler() {
  @Override
  public void handle(ActionEvent event) {
    box.getItems().add("Item " + index++);
    box.getItems().add("Item " + index++);
    box.show();
    box.hide();
  }
});