Name: ks88420 Date: 08/21/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

When you add a border to a JList that is being added to a JScrollPane, it
causes the ArrowButtons of the scrollbar not to work until you move the
scrollbar by another means. The problem arises with any type of Border that I
add to the JList. The following Test Application demonstrates this:

public class TestJList extends javax.swing.JFrame{
javax.swing.JList jList;
javax.swing.JScrollPane jScrollPane;

public TestJList(){
super();
this.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosed
(java.awt.event.WindowEvent e) {
System.exit(0);
};
});
this.setDefaultCloseOperation
(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
this.setSize(460, 300);
this.getContentPane().setLayout(new java.awt.FlowLayout());
jScrollPane = new javax.swing.JScrollPane();
jList = new javax.swing.JList();
jList.setModel(new javax.swing.DefaultListModel());
//following line sets the border on the JList
//Comment this out if you want the JScrollPane's scrollbar to
work properly
jList.setBorder(javax.swing.BorderFactory.createLineBorder
(java.awt.Color.lightGray));
for(int i = 0; i < 10 ; i++){
((javax.swing.DefaultListModel)jList.getModel
()).addElement("Item Added to the JList");
}
jScrollPane.setViewportView(jList);
this.getContentPane().add(jScrollPane);

this.show();
}

public static void main (String args []){
new TestJList();
}

}
(Review ID: 106295)
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