[FIXED] In JavaFX, Is it possible to enable a CheckBox when the TextField's value is not set to Zero

Issue

How can I enable my CheckBox when I type into the TextField a value other than zero?

By default, I've set my CheckBox to disable in the Scene Builder.

In my MainController class:

@FXML
private CheckBox cb1;

@FXML
private TextField txt1;

public void enableCB() {
    if (txt1.getText() == "0") {
        cb1.setDisable(true);
    } else {
        cb1.setDisable(false);
    }
}

In Scene Builder I've set the "enableCb Method" to the On Action and On Key Typed, but still it did not provide the right condition and output.

Solution

This can be accomplished with a fairly simple, one-statement binding:

cb1.disableProperty().bind(
                txt1.textProperty().isEmpty()
                         .or(txt1.textProperty().isEqualTo("0")));

This will enable the CheckBox only if a value other than "0" has been entered into the TextField. So it will be disabled if the text is either empty or "0".

Answered By - Zephyr