repopulate ComboBox

I want to repopulate a combobox every time when a user selects an item from the combo box. In the addItemListener, itemStateChanged method, I do removeAllItems first, then do addItems. Unfortunately this doesn't work because it got me into an infinite loop.

Can somebody tell me how to do this?

Thanks!

Remove the listener before you change the contents and add it after you're done.

I initialize all the listeners on the start up of the program in the following way. How do I stop the listener and restart it? Can I stop the listener inside the statechange routine? Thanks!

Code:

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protected void initListeners()
{       
        // ComboBox listener
        filterNamesCombo.addItemListener( new ItemListener()
        {
                public void itemStateChanged( ItemEvent event )
                {                               
                        // Determine whether an item is selected
                        if (event.getStateChange() == ItemEvent.SELECTED)
                        {
                                // Stop listener
                                // remove all items from the combo box
                                // repopulate new items
                                // restart listener
                        }
                }
        });

        // OK button listener
       
        // Cancel button listener
       
}

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Quote:

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Originally Posted by new2java2009

Can I stop the listener inside the statechange routine?

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No, you don't have a reference to the listener. You'd need something like this:

Code:

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public class Clazz {
        JComboBox filterNamesCombo = new JComboBox();
        ItemListener comboListener = null;
        protected void initListeners()
        {       
                comboListener = new ItemListener()
                {
                        public void itemStateChanged( ItemEvent event )
                        {                               
                                // Determine whether an item is selected
                                if (event.getStateChange() == ItemEvent.SELECTED)
                                {
                                        // Stop listener
                                        filterNamesCombo.removeItemListener(comboListener);
                                        // remove all items from the combo box
                                        // repopulate new items
                                        // restart listener
                                        filterNamesCombo.addItemListener(comboListener);
                                }
                        }
                };
                // ComboBox listener
                filterNamesCombo.addItemListener(comboListener);
        }
}

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Thank you so much PhHein. It's working nicely. :)

You're welcome.