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Re: Problem about JScroll

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  To: comp.lang.java.gui
ashwinijain wrote:
> hello,
>  i am preparing software in which i have used many components like
> jtable, jlabel etc..
>  i have added all these components to jpanel.
>  and i want the scrolled window but i am not able to get this...
>  code is...
> class BillingSoftware extends JPanel /*implements ActionListener */
> {
> .................. //components are added here
> }
> 
> b=new BillingSoftware();
> JFrame myFrame=new JFrame();
> myFrame.getContentPane().setLayout(null);

Ugh! null layouts are evil evil evil.

> m.b.setBounds(0,0,1000,3200);

What is m?

> JScrollPane pane=new JScrollPane();
> pane.getViewport().add(m.b);
> pane.setBounds(0,0,1000,3200);

I think this is a bad thing (tm)

> myFrame.getContentPane().add(pane);
> myFrame.getContentPane().setBackground(Color.white);

I suspect you should be doing that to pane?

> myFrame.setSize(1000,3200);

I think this too is a bad thing (tm)

> myFrame.show();
> 

When posting problems to newsgroups ALWAYS give a Small Self-contained 
Complete Compilable Example (SSCCE) like this one (which scrolls nicely) ...

import java.awt.Color;
import java.awt.Container;
import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class BillingSoftware extends JPanel{

     BillingSoftware () {
         // Use simple ugly GridLayout for demo purposes.
         // See http://www.miglayout.com/ for my favourite today.
	// For a nicer layout, change one line below to
	// setLayout(new MigLayout("wrap 2"));
         setLayout(new GridLayout(6,2));
         setBackground(Color.WHITE);
         add(new JLabel("Foo"));
         add(new JTextField("apples", 10));
         add(new JLabel("Bar"));
         add(new JTextField("apples", 10));
         add(new JLabel("Baz"));
         add(new JTextField("apples", 10));
         add(new JLabel("Qux"));
         add(new JTextField("apples", 10));
         add(new JLabel("Zip"));
         add(new JTextField("apples", 10));
         add(new JLabel("Zap"));
         add(new JTextField("apples", 10));
     }

     public static void main(String[] args) {
         SwingUtilities.invokeLater(new Runnable(){
             public void run() {
                 BillingSoftware b=new BillingSoftware();
                 JScrollPane pane=new JScrollPane(b);
                 JFrame myFrame=new JFrame();
                 Container c = myFrame.getContentPane();
                 c.add(pane);
                 myFrame.setSize(200,150); // best is myFrame.pack()
                 myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 myFrame.setVisible(true);
             }
         });
     }
}

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Thread

Problem about JScrollPane "ashwinijain" <ashwinijain@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
  Re: Problem about JScroll "RedGrittyBrick" <redgrittybrick@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
  Re: Problem about JScroll "hiwa" <hiwa@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000

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