JTable cell editor not working

Hello there,
I am new to Java programming,
I am trying to create a check box in a table cell which the user should able manipulate when the JTable is showing, the renderer is working fine but the editor is not , the overriden method getTableCellEditorComponent never gets a call, getTableCellRendererComponent does get a call and renderer works fine.
any ideas whats wrong here ?? or what could be wrong which makes getTableCellEditorComponent not get called ?
my renderere and editor code is like this
package com.itrsgroup.swing.componentmanager.dockablemanager;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.EventObject;
import javax.swing.AbstractCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
* A cell renderer and a cell editor for rendering and editing the filters active state.
public class ActiveCheckBoxRendererEditor extends AbstractCellEditor
implements TableCellEditor, TableCellRenderer, ItemListener
private Font font = new Font("Verdana", Font.BOLD, 11 );
private JCheckBox editor = new JCheckBox("Inactive");
private JCheckBox renderer = new JCheckBox("Inactive");
private String strSelectedText;
private String strNotSelectedText;
private Color colourActive = new Color(51,153,51);
private Color colourInActive = Color.RED;
/** Constructor. */
public ActiveCheckBoxRendererEditor()
this( "Selected", "Not Selected" );
* Constructor.
* @param strSelText - the text to render when selected.
* @param strNotSelText - the text to render when not selected.
public ActiveCheckBoxRendererEditor(String strSelText, String strNotSelText)
strSelectedText = strSelText;
strNotSelectedText = strNotSelText;
renderer = new JCheckBox( strNotSelectedText );
renderer.setHorizontalTextPosition( SwingConstants.CENTER );
renderer.setVerticalTextPosition( SwingConstants.TOP);
renderer.setHorizontalAlignment( SwingConstants.CENTER );
renderer.setVerticalAlignment( SwingConstants.CENTER );
renderer.setFont( font );
editor = new JCheckBox( strNotSelectedText );
editor.setBackground( UIManager.getColor("Table.selectionBackground") );
editor.setHorizontalTextPosition( SwingConstants.CENTER );
editor.setVerticalTextPosition( SwingConstants.TOP );
editor.setHorizontalAlignment( SwingConstants.CENTER );
editor.setVerticalAlignment( SwingConstants.CENTER );
editor.setFont( font );
editor.addItemListener( this );
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column)
return editor;
@Override
public boolean isCellEditable(EventObject arg0)
// TODO Auto-generated method stub
return true;
@Override
public Object getCellEditorValue()
return editor.isSelected();
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
Boolean bool = (Boolean) value;
renderer.setSelected( bool );
renderer.setText( bool ? strSelectedText : strNotSelectedText);
renderer.setForeground( bool ? colourActive : colourInActive );
if( isSelected )
renderer.setBackground( table.getSelectionBackground() );
else
renderer.setBackground( table.getBackground() );
return renderer;
@Override
public void itemStateChanged(ItemEvent e)
boolean isSelected = e.getStateChange() == ItemEvent.SELECTED;
editor.setText( isSelected ? strSelectedText : strNotSelectedText);
stopCellEditing();
and this is how I install it on my JTable
ActiveCheckBoxRendererEditor cbc = new ActiveCheckBoxRendererEditor("Active", "Inactive");
TableColumn
activeColumn = this.getColumnModel().getColumn( 3 );
activeColumn.setCellEditor( cbc);
activeColumn.setCellRenderer( cbc );
activeColumn.setPreferredWidth( 80 );
activeColumn.setMaxWidth( 200 );
activeColumn.setMinWidth( 80 );thanks
Ahmed

Is the column editable?
If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.

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My code below is supposed to change the color
of a single JTable cell however its not working.
Could anyone please tell me why?
Here's the code:
import java.awt.*;
import javax.swing.table.*;
import javax.swing.*;
import java.awt.event.*;
public class ColorTable extends JTable {
public ColorTable() {
AbstractTableModel tableModel = new AbstractTableModel() {
public Class getColumnClass(int column) { return Integer.class; }
public int getColumnCount() { return 6; }
public int getRowCount() { return 10;}
public Object getValueAt(int row,int col) { return new Integer(row * col); }
setModel(tableModel);
setDefaultRenderer(Integer.class,new ColorRenderer(Color.cyan));
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this.setCellSelectionEnabled(true);
addMouseListener(new MouseAdapter() {
private ColorRenderer renderer;
private JColorChooser chooser = new JColorChooser();
public void mousePressed(MouseEvent e) {
if(e.getModifiers() == MouseEvent.BUTTON3_MASK) {
System.out.print("rowAtPoint(e.getPoint())=" +rowAtPoint(e.getPoint()));
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class ColorRenderer extends DefaultTableCellRenderer {
private Color cellColor;
public ColorRenderer(Color color) { cellColor = color; }
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
System.out.print("row= " + row + "\n");
System.out.print("column= " + column + "\n");
System.out.print("OBJECT VALUE=" + value.toString());
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super.getTableCellRendererComponent(table,value,isSelected,hasFocus,row,column);
if (isSelected) {
setOpaque(true);
setBackground(cellColor);
else {
setBackground(Color.white);
setForeground(Color.black);
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public void setColor(Color color)
cellColor = color;
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public Color getColor() { return cellColor; }
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JFrame frame = new JFrame();
JPanel panel = new JPanel();
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Custom JTable cell editor problem

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Code:
class cellValue {
String name;
String data;
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Color dataColor;
Font font;
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private ChangeEvent event = new ChangeEvent(this);
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private int e_row=0;
private int e_col=0;
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return (getTableCellRendererComponent(table, value,isSelected, true, row, column));
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Thanks again for the repley.
I tried removing the celleditorlistener and using the setSurrenderFocusOnKeystroke, but it did not work. The textfield is editable;
I did change:
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try {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {ta.requestFocus();}
} catch (Exception e) {};
listenerList.add(CellEditorListener.class, l);
}This allows the first textfield to request focus and this seems to work. But when I highlight a cell, then start typing, the first character I type puts me into the editor, but it is lost. Example:
I type hello
and get ello in the cell. Then when I press enter the input is excepted and the selection goes to the next cell, but I cannot move the Highlight cursor at all, seems locked. The only way I can continue to the next cell is to use the mouse.
You said you had a cell editor working. Would you care to share as an example. This is killing me to get this to work properly.
Thanks again
Dave

Tab transversal while using JTextArea as a JTable cell editor..

I'm working on a project that will use a JTable with a JTextArea cell editor to create a chart for classroom scheduling. Searching on Google, I found a way to use a JTextArea as a cell editor and render the cell properly. However, when editing a cell, pressing the Tab key inserts a tab, rather than leaving the cell and going to the next one, as happens with just a regular JTable. In fact, none of the keyboard shortcuts that work on a JTable work once the JTextArea cell editor is used. Does anyone know of any way to resolve this? Below is some code I'm using to create a sample GUI, just to verify that I can do this. Another question is would it be easier to use a bunch of JLabels and JTextAreas, remove the padding from those JTextAreas, and try to allow for Tab transversals between stand-alone JTextAreas, rather than JTextAreas as JTable cell editors?
Thanks!
package edu.elon.table;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class GUI
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          {"ALAM 205 (40)\n", "", "", "", "", "", "", "", ""},
          {"ALAM 206 (39)\nSINK, TV/VCR", "", "", "", "", "", "", "", ""},
          {"ALAM 207 (40+)\nDP/DVD", "", "", "", "", "", "", "", ""},
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public static void main (String[] args)
GUI gui = new gui();
* Written by Dr. Heinz Kabutz, found through online newsletter via Google.
class TextAreaRenderer extends JTextArea
implements TableCellRenderer {
private final DefaultTableCellRenderer adaptee =
new DefaultTableCellRenderer();
/** map from table to map of rows to map of column heights */
private final Map cellSizes = new HashMap();
public TextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
public Component getTableCellRendererComponent(//
JTable table, Object obj, boolean isSelected,
boolean hasFocus, int row, int column) {
// set the colours, etc. using the standard for that platform
adaptee.getTableCellRendererComponent(table, obj,
isSelected, hasFocus, row, column);
setForeground(adaptee.getForeground());
setBackground(adaptee.getBackground());
setBorder(adaptee.getBorder());
setFont(adaptee.getFont());
setText(adaptee.getText());
// This line was very important to get it working with JDK1.4
TableColumnModel columnModel = table.getColumnModel();
setSize(columnModel.getColumn(column).getWidth(), 100000);
int height_wanted = (int) getPreferredSize().getHeight();
addSize(table, row, column, height_wanted);
height_wanted = findTotalMaximumRowSize(table, row);
if (height_wanted != table.getRowHeight(row)) {
table.setRowHeight(row, height_wanted);
return this;
private void addSize(JTable table, int row, int column,
int height) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) {
cellSizes.put(table, rows = new HashMap());
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) {
rows.put(new Integer(row), rowheights = new HashMap());
rowheights.put(new Integer(column), new Integer(height));
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private int findTotalMaximumRowSize(JTable table, int row) {
int maximum_height = 0;
Enumeration columns = table.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn tc = (TableColumn) columns.nextElement();
TableCellRenderer cellRenderer = tc.getCellRenderer();
if (cellRenderer instanceof TextAreaRenderer) {
TextAreaRenderer tar = (TextAreaRenderer) cellRenderer;
maximum_height = Math.max(maximum_height,
tar.findMaximumRowSize(table, row));
return maximum_height;
private int findMaximumRowSize(JTable table, int row) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) return 0;
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) return 0;
int maximum_height = 0;
for (Iterator it = rowheights.entrySet().iterator();
it.hasNext();) {
Map.Entry entry = (Map.Entry) it.next();
int cellHeight = ((Integer) entry.getValue()).intValue();
maximum_height = Math.max(maximum_height, cellHeight);
return maximum_height;
* Written by Dr. Heinz Kabutz, found through online newsletter via Google.
class TextAreaEditor extends DefaultCellEditor
public TextAreaEditor() {
     super(new JTextField());
final JTextArea textArea = new JTextArea();
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(textArea);
scrollPane.setBorder(null);
editorComponent = scrollPane;
delegate = new DefaultCellEditor.EditorDelegate() {
public void setValue(Object value)
textArea.setText((value != null) ? value.toString() : "");
public Object getCellEditorValue()
return textArea.getText();
}

Using the KeyEvent manager and playing around with the JTextArea, I was able to get a JTable using JTextAreas as the cell editors that worked very close to the way the regular JTable works. You have to hit Tab twice to shift focus to another cell, or hit Tab once and then an arrow key. Also, Alt-Enter will allow you to enter a cell for editing. All of the changes were made to the TextAreaEditor class, which should now read as follows:
class TextAreaEditor extends DefaultCellEditor implements KeyListener
     private int lastKeyCode;
     public TextAreaEditor(final JTable table) {
          super(new JTextField());
          lastKeyCode = KeyEvent.CTRL_DOWN_MASK;
          final JTextArea textArea = new JTextArea();
          textArea.setWrapStyleWord(true);
          textArea.setLineWrap(true);
          textArea.addKeyListener(this);
          textArea.setFocusable(true);
          textArea.setFocusAccelerator((char) KeyEvent.VK_ENTER);
          JScrollPane scrollPane = new JScrollPane(textArea);
          scrollPane.setBorder(null);
          scrollPane.setFocusable(false);
          editorComponent = scrollPane;
          delegate = new DefaultCellEditor.EditorDelegate() {
               public void setValue(Object value) {
                    textArea.setText((value != null) ? value.toString() : "");
               public Object getCellEditorValue() {
                    return textArea.getText();
     public void keyTyped(KeyEvent ke)
          // TODO Auto-generated method stub
     public void keyPressed(KeyEvent ke)
          if (ke.getKeyCode() == KeyEvent.VK_TAB)
               ke.consume();
               KeyboardFocusManager.getCurrentKeyboardFocusManager()
                         .focusNextComponent();
               return;
          if (ke.getKeyCode() == KeyEvent.VK_TAB && ke.isShiftDown())
               ke.consume();
               KeyboardFocusManager.getCurrentKeyboardFocusManager()
                         .focusPreviousComponent();
               return;
          if ((lastKeyCode == KeyEvent.CTRL_DOWN_MASK) &&
                    (ke.getKeyCode() == KeyEvent.VK_ENTER))
               ke.consume();
               editorComponent.requestFocus();
          else
               lastKeyCode = ke.getKeyCode();
     public void keyReleased(KeyEvent ke)
          // TODO Auto-generated method stub
     }

Scroll bar on editor not working

I recently upgraded to phtoshop elments 11.0 to 13.0
In the editor mode I cannot use the scroll bar. The scroll bar works fine in the orgnizaer mode. I have tried three different mouses and there is no difference.
Tom Fitch, San Antonio Texas

I am using Windows 7 Professional
In the organizer portion the scroll bar moves. When I put my mouse or
arrow on the scroll bar and drag it then of course I move through the different
rows of folders or rows of pictures once in the photo bin.
It was doing it with Photoshop Elements 11.0 and I thought 13.0 might fix
the problem and the scroll bar did move on the first try but not since then.
When I try and load the photo bin and I am choosing the right folder to
load the scroll bar just does not move. I can select the right folder by
using my up and down arrow or the page up and down and then click on the right
folder and then it loads.
Once I get the right folder of pictures loaded and once I finish the first
row of pictures I cannot use my mouse and arrow to drag the scroll bar
down to get to the next row of pictures. I can place my arrow on my mouse
below the scroll bar and got to the next row but I usually get only half the
picture and sometimes only 1/4 of it but I can usually get it loaded up and
edit the pictures and move on the next picture but it is very slow and
frustrating.
Any help would be appreciated.
I protested to an adobe supervisor and I got an e-mail and somebody is
supposed to call me tomorrow so hopefully then can log on to my computer and
see what I am talking about.
Sound like something got corruped in the editor mode only. I tried 3
different mouses and even the computer mouse and no difference.
Tom Fitch
In a message dated 12/17/2014 5:05:37 P.M. Central Standard Time,
[email protected] writes:
scroll bar on editor not working
created by RKelly_ (https://forums.adobe.com/people/R_Kelly) in
Photoshop Elements - View the full discussion
(https://forums.adobe.com/message/7024909#7024909)

Graphical editor not working

Hi,
SAP Graphical editor not working. I am getting the following error.
EU_SCRP_WN32 : timeout during allocate / CPIC-CALL: 'ThSAPCMRCV'
Last week its sucessfully working but suddenly happen this issue... This problem in development server only. In production server is sucessfully working.
Please advise...
Regards
Rajesh.

Hi Rajesh,
It looks to be RFC connection issue.
Refer to various solutions described in below SAP note
101971 - 37527 Graphical full screen is not available (RFC)
Alternative
Workaround
You can prevent the termination of the RFC connection by increasing the value of the timeout parameter for the relevant RFC destination. Call transaction SM59, choose the TCP/IP connection "EU_SCRP_WN32" and branch to the "Special Options" tab page. In the section "Keep-Alive-Timeout" select the option "Specify Timeout" and enter a longer wait time (for example, 300 seconds). Undo this change once you use the corrected program version.
Hope this helps.
Regards,
Deepak Kori

PSE12 editor stopped working - sas elements 12 editor not working - how can i get editor to work - which has been working fine for a yhearÉ

PSE12 editor stopped working - sas elements 12 editor not working - how can i get editor to work - which has been working fine for a year nowÉ

Thanks for the quick response ...
I had already tried deleting the review slide itself, though Captivate wouldn't let me - it just hid it. I tried again using the method you recommended but the slide remained in the filmstrip, so I tried deleting again, then re-added it from the Quiz Settings page ... no joy, same behavior as before.
I checked the Advanced Interaction page and confirmed that all of the scored questions were configuredthe same way as the non-scored questions, with the only difference being the pool that they were drawing from.
Other thoughts? I am by no means a Captivate expert but this one really feels like it shouldn't be this hard, and I'm more than a little afraid that it's the file itself that's jacked up ...

I am in Elements 12 - and I cannot open the Editor - it says elements editor not working - any suggestionjs?

Has anyone experienced Editor not working - and got an answer from Adobe?

Try this DNS ...
Open System Preferences > Network > Advanced > DNS
Click + and type:
208.67.222.222
Click + again and do the same.
208.67.220.220
Click OK.
Quit and relaunch Safari to test.
*** When you post for help, please state which OS X is installed.
If you aren't sure, click About this Mac from your Apple menu 
Troubleshooting advice can depend on that information.

JTable cell editor ..not able to delete value in the cell

Hello,
I have applied Cell Editor on the JTAble. I'm able to enter value initially in the cell.
Once I tab out of that cell, go back to the same cell, edit the value again and tab out. It still shows me old value, not the updated one.
I'm using putClientProperty("terminateEditOnFocusLost", Boolean.TRUE) to recognise the cell value without focus lost.
Does this cause any problem ???
Thanks in advance
Kapil

then what might be the problem of value not getting deleted ??
Code is:
public class MyTableCellEditor extends AbstractCellEditor
implements TableCellEditor {
//This is the component that will handle the editing of the cell value
private JTextField component = null;
//This method is called when a cell value is edited by the user.
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int rowIndex, int vColIndex) {
component = new JTextField();
System.out.println("value*************** "+value);
System.out.println("Component value*************** "+component.getText());
if(value != null){
component.setText(value.toString());
else{
component.setText("");
// Return the configured component
return component;
// This method is called when editing is completed.
// It must return the new value to be stored in the cell.
public Object getCellEditorValue() {
return component.getText();
public boolean shouldSelectCell(EventObject anEvent) {
return false;
}

Problem using an editable JComboBox as JTable cell editor

Hi,
i have a problem using an editable JComboBox as cell editor in a JTable.
When i edit the combo and then I press the TAB or ENTER key then all works fine and the value in the TableModel is updated with the edited one, but if i leave the cell with the mouse then the value is not passed to the TableModel. Why ? Is there a way to solve this problem ?
Regards
sergio sette

if (v1.4) [url
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JTa
le.html#setSurrendersFocusOnKeystroke(boolean)]go
hereelse [url
http://forum.java.sun.com/thread.jsp?forum=57&thread=43
440]go here
Thank you. I've also found this one (the first reply): http://forum.java.sun.com/thread.jsp?forum=57&thread=124361 Works fine for me.
Regards
sergio sette

Modifying Components within a cell table not working

Hello,
I am displaying JTextFields within JPanels in each cell of a JTable, but when I select a cell I am unable to enter text into the text boxes. Why has this been disabled now that these components are withing a JTable cell?
Thanks,
Emily

Do I have the CellEditor just return the same Panel the renderer returns?It depends and I suppose rather not.. The JTable invokes editor to provide editing component with cell object as parameter. The editor method is then expected, in your case, to set appropiate values to all components in panel and return this panel. However, JTable may also need to draw another cells while you are editing. It will then ask renderer to provide panel for that - if you use exactly same object you may have a "crostalk" between renderer and editor.
Whatever you will do, the behaviour of JPanel build in JTable cell will be litle different than standalone JPanel - if for example user double clicks in JTextField in cell, this click won't select JTextField - it will start editor only. Single click may not work at all. I did experimented with JComboBox as an editor and found, that to not confuse user too much it is better to have different view for renderer and editor - this way user will be aware about switching between edit and select/view mode.
Also, any listeners may get confused in JPanel embeded in JTable - they will recive extra events when you prepre panel to display/edit and may miss many mouse events since they will be attached to event pump only while JTable keeps cell in edit mode.
You need some experiments, I think. I would start from having two instances of same JPanel subclass - one which will work as a renderer and second, which will work as an editor.

Setting JTable cell editor

Hallo,
I have troubles setting jtable cell edtior. when i run code below, editor stays unchnaged.
Do you know where's the problem, please (except in programmer^_^) ???
import java.awt.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
public class Test extends JFrame {
    JTable table;
    Test() {
        // Create table model
        table = new JTable();
        table.setModel(new DefaultTableModel(
            new Object[][] {
                { Boolean.TRUE, Integer.valueOf(10) },
                { "Hallo!", Boolean.FALSE },
            }, new String[] { "Col1", "Col2" }));
        // Setup frame a little
        setLayout(new BorderLayout());
        setBounds(new Rectangle(300,300,200,100));
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        add(table,BorderLayout.CENTER);
         * Two calls below have no effect:-(
         * What did i wrong?
        // set cell editor for all cells
        table.setCellEditor(new DefaultCellEditor(
                new JComboBox(new String[] { "0", "1" }) ));
        // Use checkbox for booleans
        table.setDefaultEditor(Boolean.class, new DefaultCellEditor(
                new JCheckBox() ));
        // Use combobox for strings
        table.setDefaultEditor(String.class, new DefaultCellEditor(
                new JComboBox( new String[] { "Hallo!", "Bye!" } ) ));
    public static void main(String[] arg) {
        Test test = new Test();
        test.setVisible(true);
}

Hi again,
yes it works when i set it for single column, but i'd like to use default editor, because column count is not fixed.
According to documentation: "Sets a default cell editor to be used if no editor has been set in a TableColumn. If no editing is required in a table, or a particular column in a table, uses the isCellEditable method in the TableModel interface to ensure that this JTable will not start an editor in these columns. If editor is null, removes the default editor for this column class."
So when i call
column.setCellEditor(null); in TableColumnModelListener columnAdded event. But still it's not working. See sample below (i've changed it to cell renderer coz result is clear on single view, but problem stays same)
More over problem seems to be with algoritm that decide which class to use. Object takes preference any time. W/o it npe arries.
Regards
Adam
import java.awt.*;
import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
public class Test extends JFrame {
    JTable table;
    Test() {
        // Create table model
        table = new JTable();
        table.setModel(new DefaultTableModel(
            new Object[][] {
                { Boolean.TRUE, Integer.valueOf(10) },
                { "Hallo!", Boolean.FALSE },
            }, new String[] { "Col1", "Col2" }));
        // Setup frame a little
        setLayout(new BorderLayout());
        setBounds(new Rectangle(300,300,200,100));
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        add(table,BorderLayout.CENTER);
        table.setDefaultRenderer(Object.class,new Renderer(Color.YELLOW));
        table.setDefaultRenderer(String.class,new Renderer(Color.BLUE));
        table.setDefaultRenderer(Boolean.class,new Renderer(Color.RED));
        table.setDefaultRenderer(Integer.class,new Renderer(Color.GREEN));
        // use default renderer in all columns
        table.getColumn(table.getColumnName(0)).setCellRenderer(null);
        table.getColumn(table.getColumnName(0)).setCellRenderer(null);
    public static void main(String[] arg) {
        Test test = new Test();
        test.setVisible(true);
    class Renderer extends DefaultTableCellRenderer {
        Color color;
        Renderer(Color color) { this.color = color; }
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int row, int column) {
            super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
            setBackground(color);
            setToolTipText("Class is "+value.getClass().getName());
            return this;
}Message was edited by:
a3cchan

Help!!! JTable cell editor problem...

I am having a problem with table cell editors.
The problem is that when I click on another component
in the frame (out side of the JTable) the cell editors's
stopCellEditing() is not called so I get a JTable with a cell
editor in editing mode.
Any help?
Thanks a lot

It is difficult to tell what happens with FocusEvents when you are actually editing a cell and the editor is "up". I am experiencing different difficulties with the same root issue. I think the problem here is that the Java Focus Manager is consuming the focus event without propagating the event to any of the JTable components (CellEditor or JTable). I am not sure if this is exactly the case but I haven't been able to trap focus events in the Editors, Renderers or JTable anywhere. If the editor is not "up" then event handling seems to be fairly normal but when you are actually editing a cell it becomes tricky.
However, this is a problem I fixed by placing a FocusGained event handler on the other (non JTable) component and then manually stopping editing on the JTable. In other words in the JFrame (or whatever component you are using) I added a FocusListener to the non JTable component and inside of FocusGanied() I execute:
public void focusGained(FocusEvent e){
table.getCellEditor().stopEditing();
table.removeEditor();
You could, of course, use cancelEditing() as well. You'll probably want to wrap the code with some robustness as follows to ensure that you don't get trapped by wierdness.
public void focusGained(FocusEvent e){
if (table.isEditing() && table.getCellEditor() != null){
table.getCellEditor().stopEditing();
table.removeEditor();
This is probably not the only way to solve the problem but it was the way that worked when I encountered that issue.

JTable cell editor not working

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