Hi!
I have a JTable with several rows of data. I need to be able to invoke my own methods(override a listener of some sort)AND get all values from the other columns on the same row whena user manually changes value of a JCheckBox in the table.
How can I do this? Can you post example code of an easy example!
thx for any help..
Here's a simple example:import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
public class CheckBoxTableListener {
public static void main(String[] args) {
try {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
DefaultTableModel model = new DefaultTableModel(new Object[][] {{Boolean.TRUE, "1"}, {Boolean.FALSE, "2"}}, new String[] {"col1", "col2"}) {
public Class<?> getColumnClass(int columnIndex) {
Object o = getValueAt(0, columnIndex);
if (o != null)
return o.getClass();
return super.getColumnClass(columnIndex);
}
};
JTable table = new JTable(model);
BooleanEditor bEditor = new BooleanEditor();
table.setDefaultEditor(Boolean.class, bEditor);
bEditor.addCellEditorListener(new CheckBoxListener(model));
frame.add(new JScrollPane(table));
frame.pack();
frame.setVisible(true);
}
catch (Exception e) {e.printStackTrace();}
}
private static class CheckBoxListener implements CellEditorListener {
TableModel model;
public CheckBoxListener(TableModel model) {
this.model = model;
}
public void editingCanceled(ChangeEvent e) {
}
public void editingStopped(ChangeEvent e) {
BooleanEditor editor = (BooleanEditor) e.getSource();
int row = editor.getLastRow();
for (int col = 0; col < model.getColumnCount(); col++) {
System.out.println(model.getValueAt(row, col));
}
}
}
private static class BooleanEditor extends DefaultCellEditor {
int lastRow = -1;
public BooleanEditor() {
super(new JCheckBox());
JCheckBox checkBox = (JCheckBox)getComponent();
checkBox.setHorizontalAlignment(JCheckBox.CENTER);
}
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
lastRow = row;
return super.getTableCellEditorComponent(table, value, isSelected, row, column);
}
public int getLastRow() {
return lastRow;
}
}
}