ScrollPane will not create Horizontal Scrollbar

Question

Hi,
I have a JTable that I add to a JScrollPane. The Vertical scrollbars show up fine but I can't seem to get the horizontal scrollbars to appear. Is there something that I am doing wrong or is there a way to force the scrollbars to appear.
Thanks!
public void drawContractPanel() {
SearchEvent searchEvent = SearchEvent.getInstance();
searchEvent.setDealerList(dealers);
searchEvent.setStatusList(statuses);
String [] arrayDealers = searchEvent.getSelectedDealers();
String [] arrayStatus = searchEvent.getSelectedStatuses();
summaryTableModel.setQuery(arrayDealers, arrayStatus);
contractTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
contractTable.setPreferredScrollableViewportSize(new Dimension(694, 135));
saveAdapter = new SaveAdapter();
contractTable.addMouseListener(saveAdapter);
contractScrollPane.setPreferredSize(new Dimension(800, 140));
contractScrollPane.setBounds(24, 340, 800, 140);
contractScrollPane.setVisible(true);
summaryTableModel.fireTableChanged(null);
getContentPane().add(contractScrollPane);
getContentPane().invalidate();
getContentPane().validate();
}

Answer 1

You may be running into the problem of having the table resize the widths of the columns in order to make it fit into alloted viewport size. Try this line of code to make sure that the table columns remain at their preferred size.
contractTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);If The widths of your columns are larger than the viewport of your scrollpane, this should give you the horizontal scrollbar you are after.
Jerry