COMBOBOX & CHECKBOX RENDERER IN JTABLE

Question

Hi,
I created JXTable by using swingx palette in Netbeans IDE. In two columns of my table, for each row I want to put checkboxes and comboboxes. I searched the ways on internet and I finalise my code. However, because I used cell editor, I just see my checkboxes and comboboxes when I enter a specific cell. I read all tutorials but unfortunately I cannot learn how to use renderer to show comboboxes and checkboxes all the time. In below you could check my code and if possible please teach how to use renderers and try to give feedback to my code by fixing it. Thank you.
*(P.S Please don't send any web site for tutorial, i searched almost all of them; but I can't understand the logic of it.)*
// SET UP THE COMBO BOX
public void setUpOverwriteValueColumn(JXTable table, TableColumn overwriteValCol) {
valueCombo = new JComboBox();
Field field = new Field();
ArrayList values = new ArrayList();
values = field.getValues();
for(String a:values){
valueCombo.addItem(a);
overwriteValCol.setCellEditor(new DefaultCellEditor(valueCombo));
DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
overwriteValCol.setCellRenderer(renderer);
// SET UP THE CHECK BOX
public void setUpOverwriteColumn(JXTable table, TableColumn overwriteCol) {
valueChk = new JCheckBox();
overwriteCol.setCellEditor(new DefaultCellEditor(valueChk));
DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
renderer.setToolTipText("Click for check box");
overwriteCol.setCellRenderer(renderer);
setUpOverwriteColumn(monitorTable, monitorTable.getColumnModel().getColumn(3)); //add checkbox to 3rd column
setUpOverwriteValueColumn(monitorTable, monitorTable.getColumnModel().getColumn(4)); //add combobox to 4th column

Answer 1

Finally I can add renderers. But, now I have different question. When user clicks on the checkbox I want to enable the combo box. I mean if user clicks the checkbox in row 3; only the combo box which placed in row 3 should be enabled; other combos in other rows should not be enabled. Please help if you know the answer. Here is my code:
public class ComboBoxRenderer extends JComboBox implements TableCellRenderer{
    public ComboBoxRenderer(Vector items) {
        super(items);
        setOpaque(false);
    public Component getTableCellRendererComponent(
                                                JTable table,
                                                Object value,
                                                boolean isSelected,
                                                boolean hasFocus,
                                                int row,
                                                int column){
        if (isSelected && !hasFocus){
            setBackground(table.getSelectionBackground());
            setForeground(table.getSelectionForeground());
        }else{
            setBackground(table.getBackground());
            setForeground(table.getForeground());
          setSelectedItem(value);
        return this;
public class CheckBoxRenderer extends JCheckBox implements TableCellRenderer
  public CheckBoxRenderer() {
    setOpaque(false);
    setHorizontalAlignment(CENTER);
    setVerticalAlignment(CENTER);
  public Component getTableCellRendererComponent(
                                                    JTable table,
                                                    Object value,
                                                    boolean isSelected,
                                                    boolean hasFocus,
                                                    int row,
                                                    int column) {
    if (value != null) {
      this.setSelected( ( (Boolean) value).booleanValue());
    return this;
}To show:
public void setUpOverwriteValueColumn(JXTable table,
                                 TableColumn overwriteValCol) {
        Vector v = new Vector();
        Field field = new Field();
            ArrayList <String> values = new ArrayList<String>();
            values = field.getValues();
            for(String a:values){
                v.addElement(a);
            ComboBoxRenderer renderer = new ComboBoxRenderer(v);
            overwriteValCol.setCellRenderer(renderer);
    // SET UP THE CHECK BOX
    public void setUpOverwriteColumn(JXTable table, TableColumn overwriteCol) {
            CheckBoxRenderer renderer = new CheckBoxRenderer();
            overwriteCol.setCellRenderer(renderer);
    }Edited by: duygu_simsek on Jun 18, 2009 11:27 AM