Re: visual editor & gridbagLayout problem.

Mr. X. wrote:


I don't use VE. I suggest you avoid it as it seems to be causing you
confusion.


Why do you need to use your gridBagConstraint variable anywhere other
than in initialize()?


Your code does *not* produce the errors you referred to earlier:

I *don't* get 'ClassNotFoundException(GridBagLayout).'

I *don't* get 'IllegalArgumentException Expression "gbl" is too
complicated.'

The code below runs fine, whether it does what you want is impossible to
guess.

------------------------------- 8< ----------------------------
import java.awt.ComponentOrientation;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

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

public class MrXsGridBagLayoutProblem extends JPanel {

     private static final long serialVersionUID = 1L;

     private JLabel jLabel = null;

     private GridBagConstraints gridBagConstraints;

     public MrXsGridBagLayoutProblem() {
         super();
         initialize();
     }

     private void initialize() {
         setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
         setSize(300, 200);

         GridBagLayout gbl;
         gbl = new GridBagLayout();
         setLayout(gbl);

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.weightx = 1;
         gridBagConstraints.weighty = 1;
         gridBagConstraints.ipadx = 150;
         gridBagConstraints.fill = GridBagConstraints.HORIZONTAL;
         gridBagConstraints.insets = new Insets(1, 1, 1, 1);
         gridBagConstraints.anchor = GridBagConstraints.WEST;

         jLabel = new JLabel("Jlabel");
         add(jLabel, gridBagConstraints);
     }

     public static void main(String[] args) {
         SwingUtilities.invokeLater(new Runnable() {
             public void run() {
                 JPanel p = new MrXsGridBagLayoutProblem();
                 JFrame f = new JFrame("Mr X has a problem");
                 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 f.add(p);
                 f.pack();
                 f.setLocationRelativeTo(null);
                 f.setVisible(true);
             }
         });
     }

}
------------------------------- 8< ----------------------------

I did reorder your code a little so I could see more clearly what you
were doing. However it is essentially the same code. I had to add a
main() as Andrew noted. You are not making it easy for others to help you.

Please read <http://sscce.org/>, as others have suggested, and explain
your problem more carefully.

--
RGB