JList valueChanged not recognizing DefaultListModel

[Bill Sherlock]

Hi all,
I have a JList that is displaying a DefaultListModel that is populated via the press of a button. The model is initially empty. I have also declared a variable outside of valueChanged that I need to reset inside the valueChanged method. Here are the pertinent parts of my code:

String fileToGet;
public void valueChanged(ListSelectionEvent lse)
{
System.out.println("Now in valueChanged.");

if(!lse.getValueIsAdjusting())
{
System.out.println("Resetting fileToGet");

fileToGet = (String)list.getSelectedValue();
System.out.println(fileToGet);
}
}
//here is where the model is populated
for(int i=0; i<files.length;i++)
{
model.addElement(files[i]);
list.setModel(model);
scroll.revalidate();
scroll.repaint();
}

I know the model is populated because I do a S.o.p and the elements print out as expected. However, when I click on one of the lines in the JList getSelectedValue() returns null.
Any hints would be greatly appreciated!
Bill

[Qusay Jaafar]

Hi,
That's because you did not select any item from the list. getSelectedValue() looks for a selected item and return that Object, when never find a selected item will return null...
Regards