Computer Science Canada

Adding an ActionListener to JLists *AAH*
Author:  Aziz [ Fri Sep 02, 2005 9:00 am ]
Post subject:  Adding an ActionListener to JLists *AAH*
Everything was running smoothly until I ran into this problem....I want some buttons to be enabled (Open/Rename/Delete) when a user selects a list from the JList, but it doesn't have an addActionListener method, neither does DefautListModel...any help? Please?
Author:  Aziz [ Fri Sep 02, 2005 10:29 am ]
Post subject: 
Never mind, figured it out. For anyone else though, this works fine:

Make sure you include this line too:

Java:
import javax.event.*;


Java:
//Add selection listener to check an item is selected
list.addListSelectionListener(
        new ListSelectionListener()
        {
                public void valueChanged(ListSelectionEvent e)
                {
                        if (list.getSelectedIndex() == -1) //Nothing is selected
                        {
                                //Disable buttons
                                enableButtons(false);
                        }
                        else //Something is selected
                        {
                                //Enable buttons
                                enableButtons(true);
                        }
                }
        }
);

:


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