KeyListener on JComboBox

> I get no response when adding a KeyListener to a

> JComboBox. I believe this is because I need to add

> the listener to the comboBox's editable component. Am

> I right and how do I do this.

I rather think it's because the JComboBox doesn't have the focus when you hit a key...

CeciNEstPasUnProgrammeura at 2007-7-14 22:01:53 >

> The ComboBox does have focus!

You didn't tell.

> and dont answer it if you dont know what i'm talking about!!!!!

You didn't say much except "doesn't work". You didn't post your code. You also didn't post post a Swing-related question in the Swing forum where all the Swing experts are. What do you expect?

import javax.swing.JFrame;

import javax.swing.JComboBox;

import java.awt.event.KeyListener;

import java.awt.event.KeyEvent;

public class TestSomething {

public static void main(String[] sgra) {

new TestSomething();

}

TestSomething() {

JFrame frame = new JFrame();

JComboBox box = new JComboBox();

KeyListener listener = new KeyListener() {

public void keyTyped(KeyEvent keyEvent) {

System.out.println("Typed: " + keyEvent.getKeyChar());

}

public void keyPressed(KeyEvent keyEvent) {

System.out.println("Pressed: " + keyEvent.getKeyChar());

}

public void keyReleased(KeyEvent keyEvent) {

System.out.println("Released: " + keyEvent.getKeyChar());

}

};

box.addKeyListener(listener);

frame.getContentPane().add(box);

frame.setVisible(true);

}

}

Works perfectly well for me.

CeciNEstPasUnProgrammeura at 2007-7-14 22:01:53 >

You are right. This is because you need to add the key listener on the component that the combo box is using to service the editing.

ie

JTextComponent editor = (JTextComponent)urCombo.getEditor().getEditorComponent();

editor.addKeyListener( new KeyAdapter() {

public void keyReleased(KeyEvent evt)

{

// ur code

}

});

Enjoy.

Jez.

jchilvera at 2007-7-14 22:01:53 >