JTable will not refresh with new data from database

Question

Hi,
I have a JTable that does not recoginzed when the data has changed. The table is dynmaically populated with data from the database using a table model.
Please help!!
public JTable getUpdateContractTable() {
QueryTableModel model;
String [] dlrs = getSelectedDealers();
String [] stats = getSelectedStatuses();
String sql = buildContractQuery(dlrs, stats);
try {
if(isContractSet) {
model = new QueryTableModel();
model.setQuery(sql);
table.setModel(model);
table.setColumnModel(new UpdtCtrctColumnModel());
table.invalidate();
table.repaint();
//model.fireTableChanged(new TableModelEvent(model));
else {
model = new QueryTableModel();
UpdtCtrctColumnModel column = new UpdtCtrctColumnModel();
model.setQuery(sql);
table = new JTable(model, column);
table.createDefaultColumnsFromModel();
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
model.fireTableChanged(null);
isContractSet = true;
catch (Exception e) {
System.out.println(e.getMessage());
//JOptionPane.show
//.showMessageDialog("Error: " + e.getMessage(),
// "Click Ok",
// JOptionPane.INFORMATION_MESSAGE);
return table;
}

Answer 1

thank you for your help. i finally got it to refresh. i have a follow-up question if you don't mind answering it. i have 2 jtables where one depends on the other. when i do a refresh i want the other table to disappear, so i call the getContentPane().remove(component), but the table doesn't disappear. what should i do.
anthony