How to stop JList selection?

Question

Hi,
Is it possible to stop the JList box selection? i.e. keep the selection at the old selection. I tried the following in the ListSelectionListener valueChanged() method:
if (e.getValueIsAdjusting()){
// Do something to the old selection
// if something is wrong,
list.setSelectionInterval(old_index, old_index);
else {
// do something to the new selection.
But this is actually REVERTing the selection, but not STOPPing the new selection. Since it is in the valueChanged() method, I guess there is no way I could STOP the selection here.
Does anybody know where and how to "veto" a list selection event? Note that this will be triggered by user's mouse click on the list box.
Thanks!

Answer 1

You'll have to do it in a new thread, try the SwingUtilities.InvokeLater method like this:
   if (e.getValueIsAdjusting()){
// Do something to the old selection
// if something is wrong,
       list.setSelectionInterval(old_index, old_index);
   } else {
       SwingUtilities.invokeLater(new Runnable() {
          public void run() {   
// do something here
   };o)
V.V.