CODEWITHSUNDEEP
componentstextareajavafx
Đorđe Zeljić
Đorđe Zeljić

Reputation: 1825

JavaFX TextArea onChange event

Good day developers :)

Does JavaFX component, TextArea, have support for some event like onTextChange or similar? Yes, I know for keyPressed, keyTyped ... but how to handle event if another "action" do changes on TextArea (eg. txArea.setText("some text")).

Upvotes: 18

Views: 24427

Answers (3)

ceklock
ceklock

Reputation: 6352

import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;

    textArea.textProperty().addListener(new ChangeListener<String>() {
        @Override
        public void changed(final ObservableValue<? extends String> observable, final String oldValue, final String newValue) {
            // this will run whenever text is changed
        }
    });

Upvotes: 55

Wesos de Queso
Wesos de Queso

Reputation: 1572

Using Lambda expressions

textArea.textProperty().addListener((obs,old,niu)->{
    // TODO here
});

Upvotes: 8

Jonathan Giles
Jonathan Giles

Reputation: 666

As with all of JavaFX, just add a listener to the TextArea textProperty().

Upvotes: 20

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