This is an easy example on how to detect changes to data in a JTable.
The example will run by itself. Just copy the code to a file and name it CellEditorListenerExample and it is ready to be compiled and run.
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
/**
* Simple example on CellEditorListener. Class extends CellEditorListener to be able
* to be notified about changes in data in a cell in JTable.
*
* This example is built on my JFrame/JTable example.
*
* @author http://www.gammelsaeter.com/
*/
public class CellEditorListenerExample implements CellEditorListener {
private String[] _titles = new String[] {"Name", "Vage"};
private String[][] _data = new String[][] {{"Donald Duck", "100"},{"Mickey Mouse", "130"}};
public CellEditorListenerExample() {
// Make the frame
JFrame frame = new JFrame("CellEditorListener example");
frame.setSize(300, 100);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // Action when window closes
JTable table = new JTable(_data, _titles); // Set up the table
JScrollPane scrollPane = new JScrollPane(table); // Set table in a scroll pane
// To enable listening for data changes in cells in a JTable, we need to tell
// every cell editor about the CellEditorListener. In this example we only use
// default cell editor for cells of type String. If you have other editors, you
// call the editors addCellEditorListener function and give it your listener.
table.getDefaultEditor(String.class).addCellEditorListener(this);
// Add scrollpane with table to the frame and show the frame to user
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setVisible(true);
}
/**
* Listens for cells that has been edited. When a cell has been edited, this
* function will run.
*/
public void editingStopped(ChangeEvent e) {
System.out.println("A cell has been edited.");
}
/**
* Listens for cells where editing has been canceled (cell data has not been
* changed).
*/
public void editingCanceled(ChangeEvent e) {
System.out.println("Editing of a cell has been canceled.");
}
public static void main(String args[]) {
CellEditorListenerExample frame = new CellEditorListenerExample();
}
}
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
/**
* Simple example on CellEditorListener. Class extends CellEditorListener to be able
* to be notified about changes in data in a cell in JTable.
*
* This example is built on my JFrame/JTable example.
*
* @author http://www.gammelsaeter.com/
*/
public class CellEditorListenerExample implements CellEditorListener {
private String[] _titles = new String[] {"Name", "Vage"};
private String[][] _data = new String[][] {{"Donald Duck", "100"},{"Mickey Mouse", "130"}};
public CellEditorListenerExample() {
// Make the frame
JFrame frame = new JFrame("CellEditorListener example");
frame.setSize(300, 100);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // Action when window closes
JTable table = new JTable(_data, _titles); // Set up the table
JScrollPane scrollPane = new JScrollPane(table); // Set table in a scroll pane
// To enable listening for data changes in cells in a JTable, we need to tell
// every cell editor about the CellEditorListener. In this example we only use
// default cell editor for cells of type String. If you have other editors, you
// call the editors addCellEditorListener function and give it your listener.
table.getDefaultEditor(String.class).addCellEditorListener(this);
// Add scrollpane with table to the frame and show the frame to user
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setVisible(true);
}
/**
* Listens for cells that has been edited. When a cell has been edited, this
* function will run.
*/
public void editingStopped(ChangeEvent e) {
System.out.println("A cell has been edited.");
}
/**
* Listens for cells where editing has been canceled (cell data has not been
* changed).
*/
public void editingCanceled(ChangeEvent e) {
System.out.println("Editing of a cell has been canceled.");
}
public static void main(String args[]) {
CellEditorListenerExample frame = new CellEditorListenerExample();
}
}
This is quite close to what i wanted.
This example really helped me; thank you for posting it! there are very few examples of how to use CellEditorListeners, and yours is the best I’ve found by far.
Thank you very much. this helped me out alot.
=)
I ran your code in Eclipse and the method “editingCanceled” doesn’t seem to work. i’ve been searching the web for 2 days now for a reason to this.
maybe someone reading this could help me out here.
thanks