JTable Multiple Selection

Question

Hi,
I am having a problem with the jTable's multiple selection.
I apply cell renderers on a table's cells and also apply cell selection model on the table. I want to have mutliple row selection but I only get single selection.
Could someone please explain why that is?
Thanks
Zweli
<code>
Utils.setupTableColumns(tblLookupProducts);
Utils.setTableCellRenderer(tblLookupProducts, new CellToolTipRenderer(), -1);
Utils.setCellFormatRenderer(tblLookupProducts, 5);
Utils.setCellFormatRenderer(tblLookupProducts, 6);
tblLookupProducts.setRowSelectionAllowed(true);
cellSelectionModel = tblLookupProducts.getSelectionModel();
cellSelectionModel.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
public class CellToolTipRenderer extends DefaultTableCellRenderer {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int col) {
Component comp = super.getTableCellRendererComponent(
table, value, isSelected, hasFocus, row, col);
comp.setForeground(Color.black);
comp.setBackground(Color.white);
if (table.getSelectedRow() == row) {
comp.setBackground(table.getSelectionBackground());
comp.setForeground(Color.WHITE);
setToolTipText(table.getModel().getValueAt(row, col).toString());
return comp;
* @author Zweli
public class CellAlignmentRenderer extends DefaultTableCellRenderer {
private int column;
private NumberFormat currency = NumberFormat.getNumberInstance();
private DecimalFormat df = new DecimalFormat("#,###,###,##0.00");
private BigDecimal bd;
public CellAlignmentRenderer(int column) {
this.column = column;
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int col) {
Component comp = super.getTableCellRendererComponent(
table, value, isSelected, hasFocus, row, col);
comp.setForeground(Color.black);
comp.setBackground(Color.white);
if (table.getSelectedRow() == row) {
comp.setBackground(table.getSelectionBackground());
comp.setForeground(Color.WHITE);
if (row != -1) {
setHorizontalAlignment(SwingConstants.RIGHT);
setToolTipText(table.getModel().getValueAt(row, col).toString());
return comp;
</code>

Answer 1

Hello,
Please edit your post and use proper tags.
+if (table.getSelectedRow() == row) {+
From the JTable API Javadoc:
getSelectedRow()
Returns the index of the first selected row, -1 if no row is selected.
So this only returns +one+ index among all those selected.
You could use <tt>getSelectedRows()</tt> (notice the +s+ !) instead, but there's a much better approach: guess what the +isSelected+ argument to <tt>getTableCellRendererComponent(...)</tt> stands for :o)
Regards.
    J.