JTable with JPanel form as cell renderer/editor

I have a JTable that uses a custom cell editor/renderer. The cell editor/renderer is a JPanel form with labels and text panes. As the user edits the information, I adjust the table row height (setRowHeight) and the JPanel layout manager updates the layout on the cell editor. This all seems to work fine. However, when the user exists the cell and the cell renderer is shown, it has the correct new row height but has not been correctly layed-out for the new row height. How do I force my cell renderer to be re-layout after the editor closes?

That does not seem to work. I have done the following:
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int r, int c)
this.table = (EditorTable) table;
row = r;
column = c;
if (isSelected)
setBackground (Preferences.selectedRowBgColor);
else
setBackground (formBg);
// constructs the panel components
setCellValue (value);
revalidate();
return (this);

Similar Messages

Problem with addRow and MultiLine Cell renderer

Hi ,
Ive a problem with no solution to me .......
Ive seen in the forum and Ivent found an answer.......
The problem is this:
Ive a JTable with a custom model and I use a custom multiline cell renderer.
(becuse in the real application "way" hasnt static lenght)
When I add the first row all seem to be ok.....
when I try to add more row I obtain :
java.lang.ArrayIndexOutOfBoundsException: 1
at javax.swing.SizeSequence.insertEntries(SizeSequence.java:332)
at javax.swing.JTable.tableRowsInserted(JTable.java:2926)
at javax.swing.JTable.tableChanged(JTable.java:2858)
at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableMo
del.java:280)
at javax.swing.table.AbstractTableModel.fireTableRowsInserted(AbstractTa
bleModel.java:215)
at TableDemo$MyTableModel.addRow(TableDemo.java:103)
at TableDemo$2.actionPerformed(TableDemo.java:256)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:17
64)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Abstra
ctButton.java:1817)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
.java:419)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonL
istener.java:245)
at java.awt.Component.processMouseEvent(Component.java:5134)
at java.awt.Component.processEvent(Component.java:4931)
at java.awt.Container.processEvent(Container.java:1566)
at java.awt.Component.dispatchEventImpl(Component.java:3639)
at java.awt.Container.dispatchEventImpl(Container.java:1623)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
at java.awt.Container.dispatchEventImpl(Container.java:1609)
at java.awt.Window.dispatchEventImpl(Window.java:1590)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
This seems to be caused by
table.setRowHeight(row,(getPreferredSize().height+2)); (line 164 of my example code)
About the model I think its ok.....but who knows :-(......
Please HELP me in anyway!!!
Example code :
import javax.swing.*;
import javax.swing.table.*;
import java.text.*;
import javax.swing.text.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class TableDemo extends JFrame {
private boolean DEBUG = true;
MyTableModel myModel = new MyTableModel();
MyTable table = new MyTable(myModel);
int i=0;
public TableDemo() {
super("TableDemo");
JButton bottone = new JButton("Aggiungi 1 elemento");
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
//table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
//Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
//Add the scroll pane to this window.
getContentPane().add(bottone,BorderLayout.NORTH);
getContentPane().add(scrollPane, BorderLayout.CENTER);
bottone.addActionListener(Add_Action);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
class MyTable extends JTable {
MultiLineCellRenderer multiRenderer=new MultiLineCellRenderer();
MyTable(TableModel tm)
super(tm);
public TableCellRenderer getCellRenderer(int row,int col) {
          if (col==1) return multiRenderer;
          else return super.getCellRenderer(row,col);
class MyTableModel extends AbstractTableModel {
Vector data=new Vector();
final String[] columnNames = {"Name",
"Way",
"DeadLine (ms)"
public int getColumnCount() { return 3; }
public int getRowCount() { return data.size(); }
public Object getValueAt(int row, int col) {
Vector rowdata=(Vector)data.get(row);
                                                            return rowdata.get(col); }
public String getColumnName(int col) {
return columnNames[col];
public void setValueAt (Object value, int row,int col)
     //setto i dati della modifica
Vector actrow=(Vector)data.get(row);
actrow.set(col,value);
     this.fireTableCellUpdated(row,col);
     public Class getColumnClass(int c)
          return this.getValueAt(0,c).getClass();
     public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col == 1)
return false;
else
return true;
public void addRow (String name,ArrayList path,Double dead) {
     Vector row =new Vector();
     row.add(name);
     row.add(path);
     row.add(dead);
     row.add(name); //!!!Mi tengo questo dato da utilizzare come key per andare a
     //prendere il path nella lista dei paths di Project
     //(needed as key to retrive data if name in col. 1 is changed)
     data.add(row);
     //Inspector.inspect(this);
     System.out.println ("Before firing Adding row...."+this.getRowCount());
     this.fireTableRowsInserted(this.getRowCount(),this.getRowCount());
public void delRow (String namekey)
for (int i=0;i<this.getRowCount();i++)
if (namekey.equals(this.getValueAt(i,3)))
data.remove(i);
this.fireTableRowsDeleted(i,i);
//per uscire dal ciclo
i=this.getRowCount();
public void delAllRows()
int i;
int bound =this.getRowCount();
for (i=0;i<bound;i++)
     {data.remove(0);
     System.out.println ("Deleting .."+data);
this.fireTableRowsDeleted(0,i);
class MultiLineCellRenderer extends JTextArea implements TableCellRenderer {
private Hashtable rowHeights=new Hashtable();
public MultiLineCellRenderer() {
setEditable(false);
setLineWrap(true);
setWrapStyleWord(true);
//this.setBorder(new Border(
public Component getTableCellRendererComponent(JTable table,Object value,                              boolean isSelected, boolean hasFocus, int row, int column) {
//System.out.println ("Renderer called"+value.getClass());
if (value instanceof ArrayList) {
String way=new String     (value.toString());
setText(way);
TableColumn thiscol=table.getColumn("Way");
//System.out.println ("thiscol :"+thiscol.getPreferredWidth());
//setto il size della JTextarea sulle dimensioni della colonna
//per quanto riguarda il widht e su quelle ottenute da screen per l'height
this.setSize(thiscol.getPreferredWidth(),this.getPreferredSize().height);
// set the table's row height, if necessary
//System.out.println ("Valore getPreferred.height"+getPreferredSize().height);
     if (table.getRowHeight(row)!=(this.getPreferredSize().height+2))
     {System.out.println ("Setting Row :"+row);
         System.out.println ("Dimension"+(getPreferredSize().height+2));
         System.out.println ("There are "+table.getRowCount()+"rows in the table ");
         if (row<table.getRowCount())
         table.setRowHeight(row,(getPreferredSize().height+2));
else
setText("");
return this;
/**Custom JTextField Subclass che permette all'utente di immettere solo numeri
class WholeNumberField extends JTextField {
private Toolkit toolkit;
private NumberFormat integerFormatter;
public WholeNumberField(int value, int columns) {
super(columns);
toolkit = Toolkit.getDefaultToolkit();
integerFormatter = NumberFormat.getNumberInstance(Locale.US);
integerFormatter.setParseIntegerOnly(true);
setValue(value);
public int getValue() {
int retVal = 0;
try {
retVal = integerFormatter.parse(getText()).intValue();
} catch (ParseException e) {
// This should never happen because insertString allows
// only properly formatted data to get in the field.
toolkit.beep();
return retVal;
public void setValue(int value) {
setText(integerFormatter.format(value));
protected Document createDefaultModel() {
return new WholeNumberDocument();
protected class WholeNumberDocument extends PlainDocument {
public void insertString(int offs,
String str,
AttributeSet a)
throws BadLocationException {
char[] source = str.toCharArray();
char[] result = new char[source.length];
int j = 0;
for (int i = 0; i < result.length; i++) {
if (Character.isDigit(source))
result[j++] = source[i];
else {
toolkit.beep();
System.err.println("insertString: " + source[i]);
super.insertString(offs, new String(result, 0, j), a);
ActionListener Add_Action = new ActionListener() {
          public void actionPerformed (ActionEvent e)
          System.out.println ("Adding");
          ArrayList way =new ArrayList();
          way.add(new String("Uno"));
          way.add(new String("Due"));
          way.add(new String("Tre"));
          way.add(new String("Quattro"));
          myModel.addRow(new String("Nome"+i++),way,new Double(0));
public static void main(String[] args) {
TableDemo frame = new TableDemo();
frame.pack();
frame.setVisible(true);

In the addRow method, change the line
this.fireTableRowsInserted(this.getRowCount(),this.getRowCount()); to
this.fireTableRowsInserted(data.size() - 1, data.size() - 1);Sai Pullabhotla

Problem with CheckBox as table cell renderer

i m making a JTable having three columns.
i m also making a cellRenderer of my own MyRenderer
extending Jcheckbox and implementing TableCellRenderer
now i m setting MyRenderer as renderer for third column in my table and
DefaultCellEditor with jcheckbox as parameter as cell editor for this column
the code is like this--------------------
****making of JTable****
table= new JTable(3,3);
JScrollPane scrollPane = new JScrollPane(table);
TableColumn tableColumn = table.getColumn("Male"); // let us suppose that this gives third column
tableColumn.setCellRenderer(new MyRenderer ());
tableColumn.setCellEditor(new DefaultCellEditor(new JCheckBox()));
*****The classs implementing TableCellRenderer is given below******
class MyRenderer extends JCheckBox implements TableCellRenderer{
public MyRenderer(){
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column){
if(value != null){
Boolean booleanValue = (Boolean)value;
setSelected(booleanValue.booleanValue());
return this;
***********************************Problem****************************
The problem is that when we click on the cell of that column first time,
all the cells are selected.
I don't want to use getColumnClass() method for this problem .
If possible , please give some other solution.
what is the problem behind this,If anybody can help us.
Thanks in advance.

I think the problem is, when the value is null the checkbox return with the selected state, b'coz u r
returning the checkbox (as it is). so pl'z try with below code (ADDED).
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column){
if(value != null){
Boolean booleanValue = (Boolean)value;
setSelected(booleanValue.booleanValue());
else /// ADDED
setSelected(false);/// ADDED
return this;
Nediaph.

Jtable with html in a cell

Hi,
Somebody can tell me how can i put a Jlabel with html in a Jtable cell. Is that possible ?
Tks.

you need to implement a TreeTableCellRenderer
and add the renderer to your table.
check the Java tutorial on table
forgot the link..so you gotta google the link "java Table tutorial"

Table cell renderer works with any L&F, but not with Windows

Hi,
I created a table cell renderer / editor for a combobox in a table cell. This works all as expected, but if the Look&Feel is com.sun.java.swing.plaf.windows.WindowsLookAndFeel, which is the system L&F on Vista, the selected values in the combobox are not shown in the cell after loosing focus. Metal LF and Motif LF work, and a third party one "TinyLF" works as well.
Can anyone imagine why, and what needs to be changed to get a cross platform consistency without Metal LF?
A compilable demo:
import java.awt.BorderLayout;
import java.awt.Component;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
public class Test {
    static class CellRendererWithComboBox extends JLabel implements TableCellRenderer {
        JLabel label = new JLabel();
         * Set this renderer to the given column
         * @param column
         * @param r
         * @param editable
        public void setRendererTo(JTable table, int column, boolean editable) {
            TableColumn col = table.getColumnModel().getColumn(column);
            JComboBox xc = new JComboBox(new DefaultComboBoxModel(new Object[]{1, 2, 3, 4, 5, 6, 7}));
            col.setCellEditor(new ComboBoxEditor(xc));
            col.setCellRenderer(this);
            xc.setEditable(editable);
        @Override
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int row, int column) {
            if (hasFocus && isSelected) {
                if (isSelected) {
                    label.setForeground(table.getSelectionForeground());
                    label.setBackground(table.getSelectionBackground());
                } else {
                    label.setForeground(table.getForeground());
                    label.setBackground(table.getBackground());
                label.setText((value == null) ? "" : value.toString());
                return label;
            } else {
                label.setText((value == null) ? "" : value.toString());
                return label;
        class ComboBoxEditor extends DefaultCellEditor {
            private final JComboBox box;
            private boolean fire = true;
            public ComboBoxEditor(JComboBox b) {
                super(b);
                this.box = b;
                b.setLightWeightPopupEnabled(false);
            @Override
            public boolean stopCellEditing() {
                if (fire) {
                    super.stopCellEditing();
                return true;
            public void stopCellEditingSilent() {
                fire = false;
                stopCellEditing();
                fire = true;
    public static void main(String... aArgs) throws NoSuchAlgorithmException, IOException {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException classNotFoundException) {
        } catch (InstantiationException instantiationException) {
        } catch (IllegalAccessException illegalAccessException) {
        } catch (UnsupportedLookAndFeelException unsupportedLookAndFeelException) {
        JFrame p = new JFrame();
        JTable t = new JTable();
        TableModel m = new DefaultTableModel(new Object[][]{
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7}},
                new Object[]{1, 2, 3, 4, 5, 6, 7});
        t.setModel(m);
        Test.CellRendererWithComboBox f = new CellRendererWithComboBox();
        f.setRendererTo(t, 1, true);
        p.setLayout(new BorderLayout());
        p.add(t, BorderLayout.CENTER);
        p.pack();
        p.setVisible(true);
}

1) Your custom cell renderer does nothing extra, so you can depend on default renderer.
2) Instead of extending JLabel and implementing TableCellReneder, you should extend DefaultTableCellRenderer and override its get renderer method because DefaultTableCellRenderer itself extends JLabel and aditionally it does some optimizations etc., which you can miss if you implement your own renderer.
3) If you set foreground and background color in last else statement also, then you can see the values correctly in windows L&F as well.
Thanks!

Customized table cell renderer doesn't work after table data model changed

Hi:
I have a jtable with a custimized table cell render (changes the row color). Everything works fine while the data model is unchanged. I can change the row color, etc. However, after I delete one row or any number of rows in the table, the data model is updated and the custmized table cell renderer is not being called anymore while jtable is rendering on its cells. Seems like the table cell render is no long associated with the jtable. Is this a known problem? Any help would be appreciated.
Thanks

I am having the same problem. Has anybody solved this issue?
Thanks

Problem in JTable with a JComboBox cell editor

Hi gurus,
Please help! I am having a problem with a JTable that has a JComboBox cell editor. When the table is first loaded, the combo box column displays correct data. But whenever I click the combo box, the selection will be set to the first item in the combo box list once the popup menu pops up even before I make any new selection. It is very annoying.
Here is how I set the cell editor:
populateComboBoxModel(); // populate the combo box model.
DefaultCellEditor cell_editor = new DefaultCellEditor(new JComboBox(
combo_model));
contrib_table.getColumnModel().getColumn(1).setCellEditor(
cell_editor);
I didn't set the cell renderer so I assume it is using the default cell renderer.
Thanks !

Not quite. The example doesn't have a different cell editor for each row of the table. I'm sure I must be missing something, bc I've found many references to the fact that this is possible to do. And I have most of it working. However, when I click on any given combobox, it automatically switches to the first value in the list, not the selected item. I've tried setting the selected item all over the code, but it has no effect on this behavior. Also, it only happens the first time I select a given cell. For example, suppose the first row has items A, B, and C, with B being the selected value. The table initially displays with B in this cell, but when I click on B, it switches to A when it brings up the list. If I select B, and move on to some other cell, and then go back and click on B again, it doesn't switch to A.
There seems to be a disconnect between the values that I display initially, and the values that I set as selected in the comboboxes. Either that, or it behaves as though I never set the selected item for the combobox at all.
Any help would be greatly appreciated.

JTABLE Number Editor - Table Cell Renderer Clash

Hello gentlemen,
I have a JTABLE with an editable column 1. I implement a number editor and a table cell renderer (pls see below) to this column. I apply the setClickCountStart(2) method to the number editor in order to render each cell in the column editable only after two clicks. However, I believe setClickCountStart(2) is somehow overridden by a "default" functionality in my
CustomTableCellRenderer.
My problem is that any cell I select (click only once) in column1 is automatically editable whereas I only want a cell to be editable after two clicks.
Please see my code below. Any comment is more than welcome!
Cheers.
hoodNumberEditor = new NumberEditor();
        hoodNumberEditor.setClickCountToStart(2);
        class CustomTableCellRenderer extends DefaultTableCellRenderer {
            public Component getTableCellRendererComponent(JTable table,
                    Object obj, boolean isSelected, boolean hasFocus, int row, int column) {
                Component cell = super.getTableCellRendererComponent(
                        table, obj, isSelected, hasFocus, row, column);
                if (isSelected) {
                    cell.setBackground(Color.white);
                    cell.setForeground(Color.black);
                return cell;
       CustomTableCellRenderer customrenderer = new CustomTableCellRenderer();
        table.getColumn(1).setCellRenderer(customrenderer);
        table.getColumn(1).setCellEditor(hoodNumberEditor);

1) Your custom cell renderer does nothing extra, so you can depend on default renderer.
2) Instead of extending JLabel and implementing TableCellReneder, you should extend DefaultTableCellRenderer and override its get renderer method because DefaultTableCellRenderer itself extends JLabel and aditionally it does some optimizations etc., which you can miss if you implement your own renderer.
3) If you set foreground and background color in last else statement also, then you can see the values correctly in windows L&F as well.
Thanks!

JTable cell renderer view vs. cell editor display

I'm essentially reading data from a file into a table for editing then writing back to the file. The code below demonstrates two issues I have with JTable:
1. The first cell of the first row contains a String, "test\n01\n". When the cell is not being edited, the \n appears as a square (non-displayable). When the cell is being edited, it's interpreted as a newline and three lines are rendered, of which only one is visible.
How do I ignore the newline and display the square when the cell is being edited?
2. The second cell of the first row has nondisplayable data that again is displayed as squares when not edited. During edit, while trying to cursor over the squares with the right arrow key, the caret is stationary until the arrow key is pressed twice, then it moves. The result is the caret's appearance is out of synch with the actual position of the cursor. (It behaves similarly when moving from right to left.)
How do I ensure the caret moves each time I press the arrow key?
package com.prodata.util;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.text.*;
public class Test extends javax.swing.JFrame {
     private java.lang.Object[][] data;
     private java.lang.Object[] columnNames;
public Test() {
     super();
     addWindowListener(new WindowAdapter() {
          public void WindowClosing(WindowEvent e) {
               System.exit(0);
     init();
private void init() {
     byte[] b1 = new byte[]{2};
     byte[] b2 = new byte[]{1};
     StringBuffer sb = new StringBuffer("test");
     sb.append(new String(b1));
     sb.append(new String(b2));
     sb.append("02");
     data = new Object[][]{{"test\n01\n", new String(sb), "test03"}, {"test11", "test12", "test13"}};
     columnNames = new Object[]{"Column 1", "Column 2", "Column 3"};
     JTable table = new JTable();
     ((javax.swing.table.DefaultTableModel)table.getModel()).setDataVector(data, columnNames);
     JTextField tf = new JTextField();
     tf.setDocument(new PlainDocument());
     DefaultCellEditor cellEditor = new DefaultCellEditor(tf);
     table.setCellEditor(cellEditor);
     this.getContentPane().setLayout(new BorderLayout());
     this.getContentPane().add(table, BorderLayout.CENTER);
     Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
     this.setBounds(50, 50, 300, 75);
public static void main(String[] args) {
     Test t = new Test();
     t.show();
}

RE 1.
The base class for renderers is a label and labels don't read newlines. The base class for an editor is a text field. Text fields read new lines.
RE 2.
The cursor is probably trying to interpret where its supposed to go after the newline and getting confused but I'm not sure

JTable custom cell renderer and editor breaks row sorting

Hello Forum,
I have a JTable on which I set setAutoCreateRowSorter(true); I then hook up a custom cell editor and renderer for the Date class.
this.tblLeden.setDefaultRenderer(Date.class, new DateCellEditor());
this.tblLeden.setDefaultEditor(Date.class, new DateCellEditor());
The sorting for that particular row then breaks, it works fine for every other row. How do I fix this? Just directions where to look would be great too.
Here is my code for the renderer/editor:
(btw this is probably not the best way to do this so any suggestions for optimizing are great too)
import java.awt.Component;
import java.util.Date;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Vector;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import com.toedter.calendar.JDateChooser;
public class DateCellEditor extends JDateChooser implements TableCellRenderer, TableCellEditor
private static final long serialVersionUID = -5073758499524392257L;
private final Vector<CellEditorListener> listeners = new Vector<CellEditorListener>();
// oops.. lingering objects problem when rows are deleted..
private final HashMap<Integer, JDateChooser> components = new HashMap<Integer, JDateChooser>();
@Override
public final Component getTableCellRendererComponent(final JTable table,
      final Object value, final boolean isSelected, final boolean hasFocus,
      final int row, final int col)
    JDateChooser temp = this.components.get(Integer.valueOf(row));
    if (temp == null)
      temp = new JDateChooser();
      this.components.put(Integer.valueOf(row), temp);
    temp.setDate((Date) value);
    return temp;
@Override
public final Component getTableCellEditorComponent(final JTable table,
      final Object value, final boolean isSelected, final int row,
      final int column)
    JDateChooser temp = this.components.get(Integer.valueOf(row));
    if (temp == null)
      temp = new JDateChooser();
      this.components.put(Integer.valueOf(row), temp);
    temp.setDate((Date) value);
    return temp;
@Override
public final void addCellEditorListener(final CellEditorListener arg0)
    this.listeners.addElement(arg0);
@Override
public final void removeCellEditorListener(final CellEditorListener arg0)
    this.listeners.removeElement(arg0);
@Override
public final void cancelCellEditing()
    return;
@Override
public final Object getCellEditorValue()
    return null;
@Override
public final boolean isCellEditable(final EventObject arg0)
    return true;
@Override
public final boolean shouldSelectCell(final EventObject arg0)
    return true;
@Override
public final boolean stopCellEditing()
    return true;
}

This seems to work:
import java.awt.Component;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.sql.Date;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Vector;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import com.toedter.calendar.JDateChooser;
public class DateCellEditor implements TableCellRenderer, TableCellEditor, PropertyChangeListener
private static final long serialVersionUID = -5073758499524392257L;
private final Vector<CellEditorListener> listeners = new Vector<CellEditorListener>();
// oops.. lingering objects problem when rows are deleted..
private final HashMap<Integer, JDateChooser> components = new HashMap<Integer, JDateChooser>();
private Date storedValue = null;
@Override
public final Component getTableCellRendererComponent(final JTable table,
      final Object value, final boolean isSelected, final boolean hasFocus,
      final int row, final int col)
    JDateChooser temp = this.components.get(Integer.valueOf(row));
    if (temp == null)
      temp = new JDateChooser();
      temp.addPropertyChangeListener("date", this);
      this.components.put(Integer.valueOf(row), temp);
    temp.setDate((Date) value);
    return temp;
@Override
public final Component getTableCellEditorComponent(final JTable table,
      final Object value, final boolean isSelected, final int row,
      final int column)
    JDateChooser temp = this.components.get(Integer.valueOf(row));
    if (temp == null)
      temp = new JDateChooser();
      temp.addPropertyChangeListener("date", this);
      this.components.put(Integer.valueOf(row), temp);
    temp.setDate((Date) value);
    return temp;
@Override
public final void addCellEditorListener(final CellEditorListener arg0)
    this.listeners.addElement(arg0);
@Override
public final void removeCellEditorListener(final CellEditorListener arg0)
    this.listeners.removeElement(arg0);
@Override
public final void cancelCellEditing()
    return;
@Override
public final Object getCellEditorValue()
    return this.storedValue;
@Override
public final boolean isCellEditable(final EventObject arg0)
    return true;
@Override
public final boolean shouldSelectCell(final EventObject arg0)
    return true;
@Override
public final boolean stopCellEditing()
    return true;
@Override
public final void propertyChange(final PropertyChangeEvent arg0)
    if (((JDateChooser) arg0.getSource()).getDate() == null)
      return;
    this.storedValue = new Date(((JDateChooser) arg0.getSource()).getDate().getTime());
    ChangeEvent event = new ChangeEvent(arg0.getSource());
    for (int i = 0; i < this.listeners.size(); i++)
      this.listeners.elementAt(i).editingStopped(event);
}

JTable with JButton Cell renderer

How can I get buttons (JButtons) to "depress" properly in a JTable when using them as the cell renderer for a specific column in a JTable? Currently when pressing any button in the column, there is no change in the visible state of the button, i.e. it doesn't change color to create impression of depression.

Is the [problem not the fact that the JTable cell renderers merely rubberstamp each cell with the appropriate display, i.e. the actual component in the cell is not an actual button (just looks like one)? If this is the case, then the same problem will persis with a JToggleButton as well won't it?

Problem sorting JTable with custom cell editor

Greetings,
I have created a JTable with a JComboBox as the cell editor for the first column. However, I couldn't simply set the default cell editor for the column to be a JComboBox, since the values within the list were different for each row. So instead, I implemented a custom cell editor that is basically just a hashtable of cell editors that allows you to have a different editor for each row in the table (based on the ideas in the EachRowEditor I've seen in some FAQs - see the code below). I also used a custom table model that is essentially like the JDBCAdapter in the Java examples that populates the table with a query to a database.
The problem comes when I try to sort the table using the TableSorter and TableMap classes recommended in the Java Tutorials on JTables. All of the static (uneditable) columns in the JTable sort fine, but the custom cell editor column doesn't sort at all. I think that the problem is that the hashtable storing the cell editors never gets re-ordered, but I can't see a simple way to do that (how to know the old row index verses the new row index after a sort). I think that I could implement this manually, if I knew the old/new indexes...
Here's the code I use to create the JTable:
// Create the Table Model
modelCRM = new ContactTableModel();
// Create the Table Sorter
sorterCRM = new TableSorter(modelCRM);
// Create the table
tblCRM = new JTable(sorterCRM);
// Add the event listener for the sorter
sorterCRM.addMouseListenerToHeaderInTable(tblCRM);
Then, I populate the column for the custom cell editor like this:
// Add the combo box for editing company
TableColumn matchColumn = getTable().getColumn("Match");
RowCellEditor rowEditor = new RowCellEditor();
// loop through and build the combobox for each row
for (int i = 0; i < getTable().getRowCount(); i++) {
JComboBox cb = new JComboBox();
cb.addItem("New");
//... code to populate the combo box (removed for clarity)
rowEditor.add(i,new DefaultCellEditor(cb, i))); //TF
} // end for
matchColumn.setCellEditor(rowEditor);
Any ideas how to do this, or is there a better way to either sort the JTable or use a combobox with different values for each row? Please let me know if more code would help make this clearer...
Thanks,
Ted
import java.util.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
public class RowCellEditor implements TableCellEditor
protected Hashtable editors;
protected TableCellEditor editor, defaultEditor;
public RowCellEditor()
editors = new Hashtable();
defaultEditor = new DefaultCellEditor(new JTextField());
public void add(int row, TableCellEditor editor)
editors.put(new Integer(row), editor);
public Component getTableCellEditorComponent(JTable table,
Object value,
boolean isSelected,
int row,
int column)
editor = (TableCellEditor) editors.get(new Integer(row));
if (editor == null)
editor = defaultEditor;
return editor.getTableCellEditorComponent(table,
value,
isSelected,
row,
column);
public Object getCellEditorValue() {
return editor.getCellEditorValue();
public boolean stopCellEditing() {
return editor.stopCellEditing();
public void cancelCellEditing() {
editor.cancelCellEditing();
public boolean isCellEditable(EventObject anEvent) {
return true; //TF
//return editor.isCellEditable(anEvent);
public void addCellEditorListener(CellEditorListener l) {
editor.addCellEditorListener(l);
public void removeCellEditorListener(CellEditorListener l) {
editor.removeCellEditorListener(l);
public boolean shouldSelectCell(EventObject anEvent) {
return editor.shouldSelectCell(anEvent);
-------------------

Well, I found a solution in another post
(see http://forum.java.sun.com/thread.jsp?forum=57&thread=175984&message=953833#955064 for more details).
Basically, I use the table sorter to translate the row index for the hashtable of my custom cell editors. I did this by adding this method to the sorter:
// This method is used to get the correct row for the custom cell
// editor (after the table has been sorted)
public int translateRow(int sortedRowIndex)
checkModel();
return indexes[sortedRowIndex];
} // end translateRow()
Then, when I create the custom cell editor, I pass in a reference to the sorter so that when the getTableCellEditorComponent() method is called I can translate the row to the newly sorted row before returning the editor from the hashtable.

Help with JTreeTable custom cell renderer!

Hi.
I've followed diligently the complete TreeTable2 example found on the Sun site. http://java.sun.com/products/jfc/tsc/articles/treetable2/
What I'm trying to do is to add alternate-row shading on the Column(0) of the JTreeTable where the Column class is "TreeTableModel".
so, from the example, I've added the following setCellRenderer declaration to TreeTableExample2.java:
     protected JTreeTable createTreeTable() {
          JTreeTable       treeTable = new JTreeTable(model);
          treeTable.getColumnModel().getColumn(1).setCellRenderer
          (new IndicatorRenderer());
          treeTable.getColumnModel().getColumn(0).setCellRenderer
          (new MyTableCellRenderer());Then, I subclass DefaultTableCellRenderer as shown below, in a new class called "MyTableCellRenderer"
import java.awt.Color;
import java.awt.Component;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
public class MyTableCellRenderer extends DefaultTableCellRenderer implements TableCellRenderer
     private static final long serialVersionUID = 1L;
     public MyTableCellRenderer() {
     public Component getTableCellRendererComponent(JTable jtable, Object obj, boolean isSelected, boolean hasFocus, int i, int j)
          if (i % 2 == 0 && !isSelected) {
               this.setBackground(new Color(214,226,255));
               this.setForeground(Color.BLACK);
          } else if (isSelected)
               this.setBackground(new Color(204, 204, 255));
          else {
               this.setBackground(Color.white);
          //if (obj != null)
          this.setValue(obj.toString());
          System.out.println("obj: " + obj.toString());
          System.out.println("obj type: " + obj.getClass().getName());
          return ((Component) (this));
}I've been pulling out whatever few hairs I have left in my sparse scalp to get this working, but it's looking grim thus far.
Here are links to screenshots of my progress, or lack thereof:
Original Working TreeTable II
http://www.pharmalytix.com/original_treetable.jpg
My Not-working Tree Table II w/ Custom Cell Renderer
http://www.pharmalytix.com/customtablecellrenderer_treetable.jpg
thanks again - !!

phew! finally got this sucker working. I had to retrieve the default rendererer of my TreeTable's TreeTableModel class column, which is the JTree and then, in its component-form, start mucking about with its stylings. The real black-hole of progress was caused by my brain imploding from not being able to understand that a "Component" was what represented the "thing" whose behaviour I wanted to alter, be it a Jtree node or Jtable cell.
          treeTable.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
               public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int col) {
                    Component comp = treeTable.getDefaultRenderer(TreeTableModel.class).getTableCellRendererComponent(table, value, isSelected, hasFocus, row, col);
                    if (row % 2 == 0 && !isSelected) {
                         comp.setBackground(new Color(214,226,255));
                         comp.setForeground(Color.BLACK);
                    } else
                         if (isSelected)
                              comp.setBackground(new Color(204, 204, 255));
                         else {
                              comp.setBackground(Color.white);
                    return comp;
          });In all of its ravishing glory:
http://www.pharmalytix.com/alternateshading_treetable.jpg
Edited by: DataHog on Nov 6, 2007 10:21 AM

Custom Cell Renderer issue in Custom JTable

I have CustomeTable extends JTable which renders different UI Components like (JTextField/ ComboBox /JButton/JCheckBox) in *"single column*" so i have overridden *getCellRenderer* and *getCellEditor methods.*
Now my Custom Table changes contextually by selecting different nodes in JTree similar to Windows Explorer
*The problem is Some times When i Click Button & then i click other Node which displays other UIComponents old components (Button is painted) instead of new COmponent(JTextfield or ...)*
*For each UI Renderer i have called its repaint() method still this issue is noticed not frequentlly but yes occasionally.*

Following are some of my Custom Text / Combo Renderer / Password / Button to display different UI Components @ Column 2 as per my above Code
private class MyDefaultRenderer implements TableCellRenderer {
        private JTextField l;
        private Border borderPrevious;
        public MyDefaultRenderer() {
            l = new JTextField();
            borderPrevious = l.getBorder();
        public Component getTableCellRendererComponent(JTable table,
                Object value,
                boolean isSelected,
                boolean hasFocus,
                int row,
                int column) {
            PropertyInfoType propertyType = propertyInfoList.get(row).getType();
            if (ConfigCommonPropertyPanel.isInputEditable && !propertyInfoList.get(row).isReadOnly()) {
            String tempVal = "";
            if (value != null && value instanceof String) {
                tempVal = value.toString();
            l.setText(tempVal);
            l.setOpaque(true);
            l.revalidate();
            l.repaint();
            return l;
        public Object getCellEditorValue() {
            return l.getText();
       private class ButtonRenderer implements TableCellRenderer {
        JPanel buttonPanel;
        JButton button;
        public ButtonRenderer() {
            buttonPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
            button = new JButton(getAdminUIMsg(168));
            buttonPanel.setOpaque(true);
            buttonPanel.add(button);
     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
            button.setFont(LNFManager.getThemeForComponent(table).getBodyText());
            buttonPanel.setPreferredSize(new Dimension(getPreferredSize().width, getRowHeight()));
            buttonPanel.revalidate();
            buttonPanel.repaint();
            return buttonPanel;
    private class ButtonEditor extends JButton implements TableCellEditor, ActionListener {
        int rowIndex;
        int columnIndex;
        JTable table;
        JPanel panel;
        public ButtonEditor() {
            super("Validate Database");
            panel = new JPanel(new FlowLayout(FlowLayout.LEFT));
            addActionListener(this);
        public Component getTableCellEditorComponent(JTable table, Object value,
                boolean isSelected, int row, int column) {
            rowIndex = row;
            columnIndex = column;
            setOpaque(true);
            panel.setOpaque(true);
            panel.setPreferredSize(new Dimension(getPreferredSize().width, getRowHeight()));
            setFocusable(true);
            panel.repaint();
            panel.add(this);
            return panel;
        public Object getCellEditorValue() {
            return this.isSelected();
        public boolean isCellEditable(EventObject anEvent) {
            return true;
        public boolean shouldSelectCell(EventObject anEvent) {
            return true;
        public boolean stopCellEditing() {
            return true;
        public void cancelCellEditing() {
        public void addCellEditorListener(CellEditorListener l) {
        public void removeCellEditorListener(CellEditorListener l) {
        public void actionPerformed(ActionEvent e) {
                          try{
// Some Business Logic To check my Database / LDAP Connections on Button Click
                             }catch( Exception ex){
                              } finally{
                                        stopCellEditing();
                                        transferFocus();
               +Shouldnt i call repaint() on a specific Component for a Specific renderer ?+
My Code works perfectly 99 % of the times ..
But very rarely when i click My Button On my Custom Table say
When i click NODE A - which displays different UI in Right Split Info
Row 2 Column 2 - has Validate Button
Then i Click NODe B - Which displayes Contextual UI Components
Row 2 Column 2 should display TextBox (as expected)
but due to some rendering issue its Displaying same Validate Button
I have debugged and verified my logic to call renderer is perfect.
My rest of rows /columns displays appropriate UI Components except the
position of Button .
I think after my Button Editor is Invoked & i perform some business logic Button renderer is not getting invoked ???

Problem in JTable cell renderer

Hi
One problem in JTable cell. Actually I am using two tables while I am writing renderer for word raping in first table .. but it is affected in last column only remain is not being effected�. Please chaek it out what is exact I am missing�
Thanks
package com.apsiva.tryrowmerge;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.EventObject;
import java.util.Hashtable;
import java.net.*;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.event.*;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
class Item_Details extends JFrame {
    ApsJTable itemTable = null;
     ApsJTable imageTable = null;
     ArrayList data = new ArrayList();
     String[] columns = new String[2];
     ArrayList data1 = new ArrayList();
     String[] columns1 = new String[2];
     ItemTableModel itemTableModel = null;
     ItemTableModel itemTableModel1 = null;
     public Item_Details()
          super("Item Details");
         this.setSize(600,100);
         this.setBackground(Color.WHITE);
          this.setVisible(true);
         init();
     private void init(){
          ////////////// Get data for first Table Model ////////////////////////////
          data = getRowData();
          columns = getColData();
          System.out.println(columns[0]);
         itemTableModel = new ItemTableModel(data,columns);
         /////////////Get Data for Second Table Model //////////////////////////////
          try{
                    data1 = getRowData1();
             }catch(Exception e){}
          columns1 = getColumns1();
         itemTableModel1 = new ItemTableModel(data1,columns1);
         ///////////// Set Data In Both Table Model //////////////////////////////////
          itemTable = new ApsJTable(itemTableModel);
          imageTable = new ApsJTable(itemTableModel1);
          this.itemTable.setShowGrid(false);
          this.imageTable.setShowGrid(false);
          this.itemTable.setColumnSelectionAllowed(false);
          this.imageTable.setColumnSelectionAllowed(false);
          System.out.println(itemTable.getColumnCount());
          this.imageTable.setRowHeight(getImageHeight()+3);
          JScrollPane tableScrollPane = new JScrollPane(this.imageTable,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
          tableScrollPane.setRowHeaderView(this.itemTable);
          //itemTable.getColumnModel().getColumn(0).setMaxWidth(200);
          itemTable.getColumnModel().getColumn(0).setPreferredWidth(200);
          itemTable.getColumnModel().getColumn(1).setPreferredWidth(600);
          tableScrollPane.getRowHeader().setPreferredSize(new Dimension(800, 0));
          itemTable.getTableHeader().setResizingAllowed(false);
          itemTable.getTableHeader().setReorderingAllowed(false);
          itemTable.setColumnSelectionAllowed(false);
          //itemTable.setRowHeight(25);
          itemTable.setCellSelectionEnabled(false);
          itemTable.setFocusable(false);
          imageTable.getTableHeader().setReorderingAllowed(false);
          imageTable.setFocusable(false);
          imageTable.setCellSelectionEnabled(false);
          //tableScrollPane.setOpaque(false);
          itemTable.setAutoCreateColumnsFromModel(false);
          int columnCount = itemTable.getColumnCount();
          for(int k=0;k<columnCount;k++)
               TableCellRenderer renderer = null;
               TableCellEditor editor = null;
               renderer = new TextAreaCellRenderer();     // NEW
          //     editor = new TextAreaCellEditor();
          //     TableColumn column = new TableColumn(k,itemTable.getColumnModel().getColumn(k).getWidth(),renderer, editor);
               System.out.println(k);
               itemTable.getColumnModel().getColumn(k).setCellRenderer(renderer);
               //itemTable.getColumnModel().getColumn(k).setCellEditor(editor);
               /*itemTable.getColumnModel().getColumn(1).setCellRenderer(new TextAreaCellRenderer());
               itemTable.getColumnModel().getColumn(1).setCellEditor(new TextAreaCellEditor());*/
//               itemTable.setShowGrid(false);
               //itemTable.addColumn(column);
               //itemTable.getColumnModel().getColumn(k).setCellRenderer(new MultiLineCellRenderer());
               //itemTable.getColumnModel().getColumn(k).setCellEditor(new TextAreaCellEditor());
////////////---------------------- Here background color is being set--------------//////////////////
          this.imageTable.getParent().setBackground(Color.WHITE);
          this.itemTable.getParent().setBackground(Color.WHITE);
          tableScrollPane.setCorner(ScrollPaneConstants.UPPER_LEFT_CORNER,this.itemTable.getTableHeader());
          getContentPane().add(tableScrollPane,BorderLayout.CENTER);
          getContentPane().setVisible(true);
     public static void main(String[] str){
          com.incors.plaf.alloy.AlloyLookAndFeel.setProperty("alloy.licenseCode", "2005/05/28#[email protected]#1v2pej6#1986ew");
          try {
            javax.swing.LookAndFeel alloyLnF = new com.incors.plaf.alloy.AlloyLookAndFeel();
            javax.swing.UIManager.setLookAndFeel(alloyLnF);
          } catch (javax.swing.UnsupportedLookAndFeelException ex) {
          ex.printStackTrace();
          Item_Details ID = new Item_Details();
          ID.setVisible(true);
public ArrayList getRowData()
     ArrayList rowData=new ArrayList();
     Hashtable item = new Hashtable();
     item.put(new Long(0),new String("Item No:aaaaaaa aaaaaaaa aaaaaaaaa aaaaaa"));
     item.put(new Long(1),new String("RED-1050"));
     rowData.add(0,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Description:rt r trtrt rttrytrr tytry trytry tr tr rty thyjyhjhnhnhgg hhjhgjh"));
     item.put(new Long(1),new String("SYSTEM 18 mbh COOLING 13 mbh HEATING 230/208 v POWER AIRE "));
     rowData.add(1,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Stage:"));
     item.put(new Long(1),new String("Draft"));
     rowData.add(2,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Price: "));
     item.put(new Long(1),new String("999.00"));
     rowData.add(3,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Features:"));
     item.put(new Long(1),new String("SYSTEM COOLING & HEATING 12 mbh 230/208 v POWER AIRE SYSTEM1234 COOLING & HEATING 12 mbh 230/208 v POWER AIRE "));
     rowData.add(4,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Features:"));
     item.put(new Long(1),new String("SYSTEM COOLING & HEATING 12 mbh 230/208 v POWER AIRE SYSTEM1234 COOLING & HEATING 12 mbh 230/208 v POWER AIRE "));
     rowData.add(5,item);
     item = new Hashtable();
     item.put(new Long(0),new String("Features:"));
     item.put(new Long(1),new String("SYSTEM COOLING & HEATING 12 mbh 230/208 v POWER AIRE SYSTEM1234 COOLING & HEATING 12 mbh 230/208 v POWER AIRE "));
     rowData.add(6,item);
     /*item.put(new Long(0),new String("Family Sequence"));
     item.put(new Long(1),new String("8.00"));
     rowData.add(5,item);
     item.put(new Long(0),new String("Family Sequence"));
     item.put(new Long(1),new String("8.00"));
     rowData.add(6,item);
     item.put(new Long(0),new String("Family Sequence"));
     item.put(new Long(1),new String("8.00"));
     rowData.add(7,item);
     return rowData;
public String[] getColData()
     String[] colData = new String[]{"Attribute","Value"};
     return colData;
public ArrayList getRowData1()throws MalformedURLException{
     ArrayList rowData = new ArrayList();
     Hashtable item = new Hashtable();
     String str = new String("http://biis:8080/assets/PRIMPRIM/Adj_BeacM_Small.jpg");
     URL url = new URL(str);
     ImageIcon ic = new ImageIcon(url);
     ImageIcon scaledImage = new ImageIcon(ic.getImage().getScaledInstance(getImageHeight(), -1,Image.SCALE_SMOOTH));
     item.put(new Long(0), scaledImage);
     rowData.add(0,item);
     String str1 = new String("http://biis:8080/assets/PRIMPRIM/Adj_BeacM_Small.jpg");
     URL url1 = new URL(str1);
     ImageIcon ic1 = new ImageIcon(url1);
     ImageIcon scaledImage1 = new ImageIcon(ic1.getImage().getScaledInstance(120, -1,Image.SCALE_DEFAULT));
     item.put(new Long(0),scaledImage1);
     rowData.add(1,item);
     return rowData;
public String[] getColumns1(){
     String[] colData = new String[]{"Image"};
     return colData;
public int getImageHeight(){
     ImageIcon ic = new ImageIcon("c:\\image\\ImageNotFound.gif");
     return ic.getIconHeight();
class TextAreaCellRenderer extends JTextArea implements TableCellRenderer
     public TextAreaCellRenderer() {
          setEditable(false);
          setLineWrap(true);
          setWrapStyleWord(true);
     public Component getTableCellRendererComponent(JTable table,
          Object value, boolean isSelected, boolean hasFocus,
          int nRow, int nCol)
          if (value instanceof String)
               setText((String)value);
          // Adjust row's height
          int width = table.getColumnModel().getColumn(nCol).getWidth();
          setSize(width, 1000);
          int rowHeight = getPreferredSize().height;
          if (table.getRowHeight(nRow) != rowHeight)
               table.setRowHeight(nRow, rowHeight);
          this.setBackground(Color.WHITE);
          return this;

I think Problem is between these code only
for(int k=0;k<columnCount;k++)
               TableCellRenderer renderer = null;
               TableCellEditor editor = null;
               renderer = new TextAreaCellRenderer();
                                                            itemTable.getColumnModel().getColumn(k).setCellRenderer(renderer);or in this renderer
class TextAreaCellRenderer extends JTextArea implements TableCellRenderer
     public TextAreaCellRenderer() {
          setEditable(false);
          setLineWrap(true);
          setWrapStyleWord(true);
     public Component getTableCellRendererComponent(JTable table,
          Object value, boolean isSelected, boolean hasFocus,
          int nRow, int nCol)
          if (value instanceof String)
               setText((String)value);
          // Adjust row's height
          int width = table.getColumnModel().getColumn(nCol).getWidth();
          setSize(width, 1000);
          int rowHeight = getPreferredSize().height;
          if (table.getRowHeight(nRow) != rowHeight)
               table.setRowHeight(nRow, rowHeight);
          this.setBackground(Color.WHITE);
          return this;
}

JTable with JPanel form as cell renderer/editor

Similar Messages

Maybe you are looking for