repopulate ComboBox

[new2java2009]

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!

[PhHein]

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

[new2java2009]

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!

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
	
}

[PhHein]

Can I stop the listener inside the statechange routine?

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

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);
	}
}

[new2java2009]

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

[PhHein]

You're welcome.