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closing  child window from a frame

Posted on 2001-08-06
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Last Modified: 2012-05-04

hi,

I have a frame.In this frame I have a pop up menu
when the user selects "create" option from the pop up menu
I display another frame to create something

The problem is when I close the main frame I want to
dispose this second  frame

How do I do this
I tried doing this

f.addWindowListener(new WindowAdapter ()
    {
         Window [] childWindows = null;
         public void windowClosing(WindowEvent event)
         {

           System.out.println("in window closing event");

           childWindows = f.getOwnedWindows();
           System.out.println("childWindows" + childWindows.length );

           for(int i=0;i<childWindows.length;i++)
           {
          System.out.println("destroy child window");
          childWindows[i].setVisible(false);
          String name = childWindows[i].getName();
          System.out.println("name" + name);
          childWindows[i].dispose();
           }

         }

    });

This does not work.
How do I do this.




 
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Question by:sanjay_thakur
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1 Comment
 
LVL 1

Accepted Solution

by:
dviji earned 60 total points
ID: 6357450
Two ways,

1. In your parent window class keep track of your child windws, in your child window if you close the child window remove its refrence from parent and at the same time if you want to close the parent in the windowClosed() method (You should implement WindowListener)disposee all of its child.


2. In the Frame class use getFrames() class and dispose all the Frames in the parent's windowClosed() method (You should implement WindowListener).

------

Instead of creating child frames if you create Dialog and associate that dialog to your Parent frame. So if you close the child dialogs the Jvm close all of its childs().

...dviji
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