🚀 go-pugleaf

Hi Alex,

ok I see, I've got the same problem with the jlist. It has maybe something to do
with the graphic update of the jList.
I have two jLists on two jPanels with a cardlayout. When I add elements to one
list I see no scrollbar. After I've changed between the two panels (put the
first panel behind the second one and then bring it back to front) suddenly the
jlist has a scrollbar.

First try to add the elements before you set the viewport and see how that
works.
Maybe you have to call a repaint event, I am still looking for a solution for my
application, I'll inform you once I've found one.

Martin


zimmerer wrote:

> It does not work there still is no scrollbar. I've wrote a little test code,
> perhaps someone can take a short look at it and tell me whats wrong.
>
> import com.sun.java.swing.*;
> import java.awt.*;
> import java.awt.event.*;
>
> public class Test extends JFrame {
>
>   public Test() {
>     Frame1 frame = new Frame1();
>     frame.setVisible(true);
>   }
>   public static void main(String[] args) {
>     new Test();
>   }
>
>   class Frame1 extends JFrame {
>     GridLayout grid = new GridLayout();
>     public Frame1() {
>       this.getContentPane().setLayout(grid);
>       this.setSize(200,200);
>       DefaultListModel model = new DefaultListModel();
>       JList list = new JList(model);
>       JScrollPane scroll = new JScrollPane();
>       scroll.getViewport().setView(list);
>       //this doesn't work, too
>       //JList list =new JList(model);
>       //JScrollPane scroll = new JScrollPane(list);
>       this.getContentPane().add(list);
>       for (int i=0;i<20;i++) {
>         model.addElement("item"+i);
>       }
>     }
>     protected void processWindowEvent(WindowEvent e) {
>       super.processWindowEvent(e);
>       if (e.getID() == WindowEvent.WINDOW_CLOSING) {
>         System.exit(0);
>       }
>     }
>   }
> }
>