Re: help needed @ JScrollpane on JTabbedpane

From:
Ian Wilson <scobloke2@infotop.co.uk>
Newsgroups:
comp.lang.java.help
Date:
Wed, 03 May 2006 18:57:45 +0100
Message-ID:
<3tWdnfH6GsiAcsXZRVnyhg@bt.com>
vikas talwar wrote:

Hi All,

I have created a JPanel object.
JPanel my_panel = new JPanel();
I have many component added on this JPanel object.

Now, I have make JScrollPane.
JScrollpane my_scroll = new JScrollpane(my_panel);

NOw my problem is with default Layout, I'm getting my component (at
JPanel) in vertical row.


You didn't say what layout you expected to see.

and when I use 'my_panel.setLayout(null)', my JScrollpane is not
working.


I'd *expect* layout not to work very well if you use a null layout. YMMV.

Please tell me if I'm not clear with my question.


OK. You are not clear with your question. :-)

In most programming newsgroups, if you have trouble clearly expressing
your problem in English, I find it best to express the problem in
program source code instead.

I'd write some complete minimal code that demonstrates the problem. For
example, the following example works* for me:

import javax.swing.*;
public class ScrollPanelApp {
   private static void createAndShowGUI() {
     JPanel panel = new JPanel();
     panel.add(new JButton("Foo"));
     panel.add(new JButton("Bar"));
     panel.add(new JButton("Baz"));
     panel.add(new JButton("Qux"));
     panel.add(new JButton("Ok"));
     panel.add(new JButton("Cancel"));
     JScrollPane scrollpane = new JScrollPane(panel);
     JFrame frame = new JFrame("Horizontal scrolling buttons");
     frame.add(scrollpane);
     frame.setBounds(100,100, 300, 200);
     frame.setVisible(true);
   }
   public static void main(String[] args) {
     javax.swing.SwingUtilities.invokeLater(new Runnable() {
       public void run() { createAndShowGUI(); }
     });
   }
}

It is only 22 lines (including the optional extra added
thread-safetiness) surely you could boil down your problem to a
similarly small example that people can look at and run?

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