CODEWITHSUNDEEP
javaswingjdialog
artiny
artiny

Reputation: 115

How to use JDialog in a Swing GUI?

I want to extend my JFrame Form ... with one JDialog form (I want to connect with frame, I want in the menu-bar when someone click to the HELP (from the menu) will show the new dialog box. I do not want to use JOptionPane for this use.

I made in to the program menu with Help menu item, now on the actionPerformed will something write.

new help(this, true, ).setVisible(true);

Something this but I don't remember - what is correct?

Upvotes: 1

Views: 3525

Answers (2)

mKorbel
mKorbel

Reputation: 109815

  • this from new help(this, true, ).setVisible(true); could be missinterpreted by another this in rest of your code

  • create local variable for JFrame and JDialog, use title and Modal/ModalityType if is required, e.g. new JDialog(myFrame, ....)

  • create only one instace of JDialog, change DefaultCloseOperations to HIDE_ON_CLOSE

  • (then only) call myDialog.setVisisble(true) delayed inside invokeLater() (from JMenuItems event)

Upvotes: 1

user586399
user586399

Reputation:

Why not using javax.swing.JOptionPane? It provides you all you need to show dialogs and prompt the user for inputs.

JOptionPane p = new JOptionPane();
// init p
p.setVisible(true);

Upvotes: 0

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