JDialog Non Modal....Default button remains

I've created a non modal JDialog
By doing the following
1. Creating an object of JOptionPane(message, JOptionPane.ERROR_MESSAGE)
2. Adding the JOptionPane object to the ContentPane
3. Creating a button
4. Adding button("End Application") to ContentPane
5. Adding listeners to window and button
The result is a dialog
Message
ICON "OK" Button...............................NOT REQUIRED
"End Application" Button
I don't require the "OK" Button. Is there a way of removing this button. I need the dialog box to be modal so can't use showMessageDialog, rename "Ok" button to "End Application" etc.
Should I be taking a different approach ie Not adding JOptionPane to JDialog??
If the above isn't possible. Do you know where I can find the default error gif on error dialog boxes?
Kind regards,
Jean

Get the error icon with UIMananger.getIcon("OptionPane.errorIcon"). It might throw exceptions while painting because it's expecting to be painting in a JOptionPane. Just catch and ignore the exceptions and it will paint alright.

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Change a modal JDialog to non-modal JDialog

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Nope.
The reason is because of program flow:
System.out.println("first line");
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dialog.setVisible(true); // blocks this flow if and only if modal is true
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Try putting a button in the dialog which prints out "button pressed".
If you press the button each time before closing the dialog you will get:
when modal is true:
first line
button presed
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first line
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Thanks.
The constructor for creating the dialog is pasted as below:
public AbstractDialog(Frame owner, String title, boolean isModal) {
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Non modal JDialog

Hi All,
I want a non modal JDialog which is used to show the message to the user that it is searching for the records, when a search is performed and records are retrieved from the database. When the search is going on user might hit cancel on the JDialog to cancel the search. My problem is, the cancel button on the Search dialog is not catching the event and user is not able to select the cancel option on the dialog.
Here is my code :
class SearchWindow extends JDialog {
private JPanel btnPanel;
private JLabel lblSearch;
private JButton btnCancel;
* Constructor
public SearchWindow() {
super((Frame)null, false);
setTitle("Searching Shipment Legs");
cancelled = false;
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
close();
Container contentPane = getContentPane();
contentPane.setLayout(null);
addButtons();
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setSize(new Dimension(300, 100));
setSize(300,100);
setLocation((screenSize.width-700)/2,(screenSize.height-450)/2);
private void addButtons() {
btnPanel = new JPanel();
btnPanel.setLayout(new BorderLayout());
lblSearch = new JLabel("Searching..........");
btnCancel = new JButton("Cancel");
btnPanel.setBackground(Color.lightGray);
lblSearch.setBackground(Color.lightGray);
btnCancel.setBackground(Color.lightGray);
btnPanel.add(lblSearch, BorderLayout.CENTER);
btnPanel.add(btnCancel, BorderLayout.SOUTH);
btnCancel.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent evt) {
System.out.println("cancel");
cancelled = true;
close();
btnPanel.setBounds(0,0,200,50);
this.getContentPane().add(btnPanel);
lblSearch.setVisible(true);
btnCancel.setVisible(true);
this.getContentPane().validate();
public void close() {
this.setVisible(false);
this.dispose();
public void show() {
super.show();
paintComponents(getGraphics());
this.setModal(false);
Any help is greatly appreciated.
Thanks,
Bhaskar

Hi Haroldsmith
I am calling this search window in one of my programs where on button click it will fetch the records from the database. When this process is on, search dialog is shown up. Ths dialog is shown correctly and its getting closed as soon as the search is completed. But the probelm is its not allowing me to click on cancel button.
Bhaskar

Non-modal JDialog is not painted and blocks the GUI

I have developed a GUI that's basically a JFrame with a JDesktopPane.
The user can, via a menu item, pop up a JDialog that contains some JLists and then select some value from it. Once he/she has done the selection and clicks on OK, the dialog disappears (data processing is then done in the main GUI) and comes back once a specific event has happened. The user then selects other data and so on, until he/she clicks on Cancel, which definitely disposes of the JDialog.
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Ok, I've taken some time to think about this problem and I've modified the code a bit.
Now the dialog shows itself and is responsive (i.e. its JLists can be operated), but the Ok button does not close the dialog as I'd want. I believe that I'm messing up things about threading, and the operations in actionPerformed() should be carried out in another thread, if possible.
Thanks in advance for any hint / suggestion / comment / insult.
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How do I create a Modal JDialog (non-bypassable when visible)?

After customising a JDialog, I found that it is basically ignored after it has been created, by the main program. I've tried many ways to stop this from happening, searched the Java tutorial and googled it, but cannot find out how to do so. I have used the constructor for a modal Dialog:
JDialog(Dialog owner, String title, boolean modal)However, my methods are still treated like a non-modal Dialog, as they are ignored. Is there a certain method I have to call to make this Dialog modal (not able to be bypassed when made visible). If so then I would appreciate it if anybody could help, or perhaps point me along the right way.

JDialog(Dialog owner, String title, boolean modal)How do you expect us to solve your problem based on a single line of code? Create a simple demo program that shows the problem
Here is a simple demo that works.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class DialogModal extends JFrame implements ActionListener
     public DialogModal()
          JButton button = new JButton("Show Dialog");
          button.addActionListener( this );
          getContentPane().add( button );
     public void actionPerformed(ActionEvent e)
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          dialog.setSize(300, 300);
          dialog.show();
     public static void main(String[] args)
          JFrame frame = new DialogModal();
          frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
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}

Is there a way to display a non modal JDialog on JApplet

Whenever I try to add a non modal JDialog over a JApplet, the JDialog freezes and components on it never gets painted. After a disappointing search over web, I've kinda begin to hate swing. I am shocked that a very basic thing like this is so hard to achieve in Java. Any solution folks?
My code is as follows:
import java.awt.Frame;
import javax.swing.JApplet;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JButton;
public class DialogApplet extends JApplet {
     private javax.swing.JPanel jContentPane = null;
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      * This method initializes jButton
      * @return javax.swing.JButton
     private JButton getJButton() {
          if (jButton == null) {
               try {
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                    jButton.setText("Click Me");
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                            pi.setLocation(75, 80);
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                            try {
                            Thread.sleep(10000);
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                            e1.printStackTrace();
                            pi.setVisible(false);
               catch (java.lang.Throwable e) {
                    e.printStackTrace();
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      * This method initializes this
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     private javax.swing.JPanel getJContentPane() {
          if(jContentPane == null) {
               jContentPane = new javax.swing.JPanel();
               jContentPane.setLayout(null);
               jContentPane.add(getJButton(), null);
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}

try this, it is really simple, just to look at
example from the swing tutorials.
Thanks my friend, If you carefully observe my code, I also needed some piece of code to run in the background ((The thread.sleep() part)) while displaying the dialog. The problem was the JDialog used to freeze and components on it never used to get painted. Finally I managed to find a way out. If we try to display a JDialog with a new thread, The event dispatching thread takes precedence and the painting of components on the JDialog happens only after even dispatching thread is done. All I did was display JDialog in the event dispatch thread and run the background process in new thread.
My code.
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Frame;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class DialogApplet extends JApplet {
    private javax.swing.JPanel jContentPane = null;
    private JButton jButton = null;
    private JDialog dialog = null;
     * This is the default constructor
    public DialogApplet() {
        super();
        init();
     * This method initializes this
    public void init() {
        this.setSize(300, 200);
        Container container = this.getContentPane();
        container.add(getJContentPane());
     * This method initializes jContentPane
     * @return javax.swing.JPanel
    private javax.swing.JPanel getJContentPane() {
        if (jContentPane == null) {
            jContentPane = new javax.swing.JPanel();
            jContentPane.setLayout(null);
            jContentPane.add(getJButton(), null);
        return jContentPane;
     * This method initializes jButton
     * @return javax.swing.JButton
    private JButton getJButton() {
        if (jButton == null) {
            try {
                jButton = new JButton();
                jButton.setText("Click Me");
                jButton.setBounds(75, 80, 147, 34);
                jButton.addActionListener(new java.awt.event.ActionListener() {
                        public void actionPerformed(java.awt.event.ActionEvent e) {
                            showDialog();
            } catch (java.lang.Throwable e) {
                e.printStackTrace();
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    public void showDialog() {
        final Frame frame = JOptionPane.getFrameForComponent(this);
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        JPanel panel = new JPanel(new BorderLayout());
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        dialog.pack();
        Thread t = new Thread() {
                public void run() {
                    for (int i = 0; i < 100000; ++i) {
                        System.out.println(i);
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A non-modal, but "always on top" JDialog

Hi everyone,
In an applet I am creating, I need to create a non-modal JDialog which stays on top whenever its open. The reason this JDialog is required to be non-modal is that I need the main applet window to be able to react to events and reflect changes in the non-modal JDialog.
I was wondering how this can be achieved.
To summarize the problem:
How can you have a JDialog whose modal property is "false", but stays on top of the applet window.
This problem has been bugging me for quite a while now, so any pointers will be appreciated.
Thanks,
Alan

Here is how you do it in an applet (as opposed to JApplet):
* Browser sniffer *
      boolean isNN4=false,isNN6=false,isIE=false;
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      JSObject window=JSObject.getWindow(this);
      JSObject document=(JSObject)window.getMember("document");
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Good Luck!
;o)
V.V.

JButton on XP non-modal Jdialog doen't work.

I recently upgraded from 1.3 to 1.4 while upgrading my OS from NT 4.0 to XP.
In a stand-alone application I have non-modal JDialog's that are launched as threads so that I can have multiple instances of them running simultaneously. There are JButton's on the JDialog's which no longer respond to any mouse events even though I can execute them via the keyboard using the tab and enter keys. They work just fine under 1.3 or if I make them modal.
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Hello,
Issue is-
There are JButton's on the JDialog's which no longer respond to any mouse events even though I can execute them via the keyboard using the tab and enter keys. They work just fine if I make them modal.
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Hi Forté Users,
Can I ask if anyone has experienced any of the following problems?
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Thanks,
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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Shortcut for selecting non-default button in dialog boxes

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hello,
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That did it for my case.
Sylvia

JDialog Non Modal....Default button remains

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