Re: Combobox how to disable edit but allow select
dnasmars@gmail.com wrote:
John_Woo a =E9crit :
Michael Rauscher wrote:
John_Woo schrieb:
Hi,
after setEditable(false) in a JComboBox, it can't allow to select a
item (display blank).
I'm wondering, how to disable the edit but with select function ena=
ble?
import javax.swing.*;
public class Test {
public static final void main( String args[] ) throws Exception {
JComboBox comboBox = new JComboBox(
new String[]{"1.", "2.", "3."} );
comboBox.setEditable( false );
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE );
frame.setContentPane( comboBox );
frame.pack();
frame.setVisible( true );
}
}
Works for me.
Bye
Michael
Thanks lots, but my case
class MyComboBox extends JComboBox implements ActionListener
{
MyComboBox()
{
addItem("a");
addItem("b");
addItem("c");
setEditable( false );
addActionListener( this); //line A
}
}
without line A it works as yours, but with line A, it just couldn't
work (whenever select, it left it blank).
Can you fix it?
--
John
try this
public class MyComboBox extends JComboBox implements ActionListener {
public MyComboBox() {
addItem("a");
addItem("b");
addItem("c");
setEditable( false );
addActionListener( this); //line A
}
public void actionPerformed(ActionEvent e) {
System.out.println(" this is ugly ");
this.setForeground(Color.white);
}
}
I hope this helps
That's it. Thank you.
setForeground(Color.black); is better.
just didn't know why Michael's example (using inner class) works fine,
but my case (using independent class ) has the foreground issue.
John
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