Probelms Adding items to JList Component

Question

i tried to add items to JList from the database.... and it can add to the variable but the list isnt displaying....
here is my code for that button...
list_ListTopic = new JList(new DefaultListModel());
DefaultListModel listModel = (DefaultListModel)list_ListTopic.getModel();
jScrollPane1 = new JScrollPane(list_ListTopic);
jScrollPane1.setViewportView(list_ListTopic);
Vector data = new Vector();
listModel.clear();
while (lrs.next())
        data.add(lrs.getString("tName"));                                       
        i++;
list_ListTopic.setListData(data);
jScrollPane1.setViewportView(list_ListTopic);Thanks!

Answer 1

Read the Swing tutorial on [url http://java.sun.com/docs/books/tutorial/uiswing/components/list.html]How to Use Lists. It shows you how to initially load data into a list and then how to add/remove entries from the list. In general, you don't update the Vector after the ListModel has been created you update the model directly.