JavaFX bind to multiple properties

Question

I have a simple fxml with a textfield and a button. I\'d like to have the button disabled if the textfield is empty. So I insert something like the following in my controlle

Answer 1

In addition to Andreys approach, I found that you can also do it like this:

    BooleanBinding booleanBinding = 
      textField.textProperty().isEqualTo("").or(
        textField2.textProperty().isEqualTo(""));

    button.disableProperty().bind(booleanBinding);