Disable group of radio buttons

Question

I have a group of radio buttons defined as 'ButtonGroup bg1;' using 'javax.swing.ButtonGroup' package. I would like to disable this group so that the user cannot change their selection after clicking the OK-button 'btnOK'.

So I was looking for something along these lines:

private void btnOkActionPerformed(java.awt.event.ActionEvent evt) {
   bg1.setEnabled(false);
}

However, .setEnabled(false) does not seem to exist.

Answer 1

I would like to disable this group

ButtonGroup is not a visual component. It is used to create a multiple-exclusion scope for a set of buttons.

Creating a set of buttons with the same ButtonGroup object means that turning "on" one of those buttons turns off all other buttons in the group.

---

You have to disable each and every JRadioButton added in Buttongroup because ButtonGroup doesn't have any such method to disable whole group.

Sample code:

Enumeration<AbstractButton> enumeration = bg1.getElements();
while (enumeration.hasMoreElements()) {
    enumeration.nextElement().setEnabled(false);
}

Answer 2

A simple solution would be to place the buttons in an array...

    JRadioButton[] buttons = new JRadioButton[]{jbutton1,jbutton2,jbutton3,jbutton4};

The iterate the array and change the state of the buttons...

    for (JRadioButton btn : buttons) {
         btn.setEnabled(false);
    }

Or you can enter the radio button group in a JPanel and add that JPanel.

On OK Button click event you can get the components and iterate through the loop to disable them.

   for(Component c:jpanel1.getComponents()){
        c.setEnabled(false);
   }