displaying jInternalFrame from another jinternalFrame over desktop pane in netbeans

Question

I want to display jInternalFrame1 over a desktop pane in a jFrame.jInternalFrame1 contains a Button for displaying jInternalFrame2 over the desktop pane by removing jInternalFrame1.

public class main extends javax.swing.JFrame {

a aa=new a();//jInternalFrame1
public main() {
    initComponents();
    jDesktopPane1.add(aa);
    aa.setVisible(true);
}
public static void main(String args[]) {

    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new main().setVisible(true);
        }
    });
}

private javax.swing.JDesktopPane jDesktopPane1; }

code under button in jInternalFrame1;

 private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    // TODO add your handling code here:
     b bb=new b();//jInternalFrame2
this.dispose();
   bb.setVisible(true);
}

But this code is not displaying the jInternalFrame2.I have seen many solutions for this.But I dont understand how to add these into the desktop pane.sorry for my poor English. Thank you

Answer 1

You forgot to add bb to the jDesktpPane1. To do that, you need to take a JDesktopPane argument as a parameter in your jInternalFrame1. Then use that JDesktopPane to add the second one. I put together a simple test run.

Code from MainFrame

private void jMenuItem1ActionPerformed(ActionEvent evt) {                                           
    IFrameOne iFrame1 = new IFrameOne(jDesktopPane1);
    jDesktopPane1.add(iFrame1);
    iFrame1.setVisible(true);
}  

Code from IFrmaeOne

JDesktopPane desktop;
public IFrameOne(JDesktopPane desktop) {
    initComponents();
    this.desktop = desktop;
}
...
private void jButton1ActionPerformed(ActionEvent evt) {                                         
    IFrameTwo iFrameTwo = new IFrameTwo();
    desktop.add(iFrameTwo);
    this.dispose();
    iFrameTwo.setVisible(true);
} 

IFrameTwo is just an empty JInternalFrame class. This works for me. Created with GUI Builder also

---

UPDATE

"sir actually I tried cardLayout.But I cant add the cards using navigator (add from palette).For me coding is difficult.So I used drag and drop.Can you tell Why its not possible to add the cards?Yesterday I added.But today cant"

If you want to use a CardLayout for the JInternalFrame here are the steps

1. You can create JPanel forms. So create two of them.

2. In your JInternalFrame drag and drop a JPanel and extend it to the size of the frame.

3. You need to hand code the CardLayout yourself. But it in the constructor

   public MyInternalFrame() {
       initComponents();
       CardLayout cardlayout = new CardLayout();
       jPanel1.setLayout(cardLayout);
   }
   

4. Then add the two JPanel forms you created in step one.

   jPanel1.add(new PanelForm1(), "panel1");
   jPanel1.add(new PanelForm2(), "panel2");
   

5. Then in your actionPerformed you can just switch between panels

   public void jButton1ActionPerformed(java.awt.events.ActionEvent e) {
       cardLayout.show(jPanel1, "panel2");
   }
   

6. You could switch back and forth if you need to.