Store value in data model without showing it in table

Question

Hi,
How can I store something in my table model without showing it in my table? I have an arraylist which contains a list of my own data objects. I have my own table model like
public class MyTableModel extends AbstractTableModel {
              public Object getValueAt(int row, int col) {
               TableDataObject tdo  = (TableDataObject) data.get(row);
               switch(col) {
                    case 0:
                         return tdo.getFoo();
                                 default:
                                         break;
}my "hidden" value is stored in the data list...but I have to get the hidden value from my table model, not from my arraylist.

Answer 1

Nothing to it, but to do it:
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class ColumnModelExample {
    public static void main(String[] args) {
        Object[] columnNames = {"hidden", "column 1", "column 2"};
        Object[][] rowData = {
            {"hidden 0","row 0, col 1","row 0, col 2"},
            {"hidden 1","row 1, col 1","row 1, col 2"},
        TableModel model = new DefaultTableModel(rowData, columnNames);
        JTable table = new JTable(model);
        TableColumnModel columnModel = table.getColumnModel();
        columnModel.removeColumn(columnModel.getColumn(0));
        JFrame f = new JFrame("ColumnModelExample");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new JScrollPane(table));
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
}One typical use of this is for displaying the records of a database table, where you don't want to
show the user a sequence column which would only confuse the user...