I am working on a JavaFX 2.2 project and I have a problem using the TextField
control. I want to limit the number of characters that a user will be able to enter into each TextField
. However I can’t find a property or something like maxlength. The same problem existed in Swing and was solved this way. How to solve it for JavaFX 2.2?
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Answer
This is a better way to do the job on a generic text field:
public static void addTextLimiter(final TextField tf, final int maxLength) { tf.textProperty().addListener(new ChangeListener<String>() { @Override public void changed(final ObservableValue<? extends String> ov, final String oldValue, final String newValue) { if (tf.getText().length() > maxLength) { String s = tf.getText().substring(0, maxLength); tf.setText(s); } } }); }
Works perfectly, except for that Undo bug.