Cell editor use

what all the advantages using cell editor and where it is necessary to use

Hi,
Refer,
Re: cell editor
http://help.sap.com/saphelp_nw04/helpdata/en/cb/89fa3a0376a51fe10000000a114084/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/a5/359840dfa5a160e10000000a1550b0/content.htm
Regards,
Gunjan.

Similar Messages

FocusLost of jtable is not triggered when focus is lost from a cell editor.

Hi
I have a jtable and some columns in the table contains editable cells. I started editing a cell and, before the cell editing is stopped, i clicked another component in the panel using mouse. At that time, the focusLost() method of the table is not triggered. So that the code written in my focusLost() method of table is not working.
If I add focuslistener to the cell editors, the focusLost() method of this cell editors are triggered at that time.
Shall I need to add focuslistener to each cell editors used in my jtable ? Anybody know a better solution to handle this problem ?
Regards
Anoop

Add this to your code.
yourTable.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);

Using a JPanel as cell editor in JTable

I have a composite component (JPanel that contains a JTextField and a
JButton) that I would like to use as the a cell editor in a JTable.The JButton instantiates a UI editor component that I have designed. Example would be date editor for dates, tet editor for strings etc. This editor allows the user to select a date to populate the JTextField (the date may also be manually entered).
I have no problem with the rendering of the component within the table.However, I would like for the JTextField embedded within the JPanel to receive focus and a visible caret, when using the tab key to navigate to the cell. After reading through some of the posts here , I was able to transfer the focus. But I dont see a visible caret. I am unable to edit. I have to click on the text box and then start typing. Its a great pain in the ass.
I have a custom designed table and custom designed editor. Code is attached...
<pre>
protected boolean processKeyBinding(KeyStroke ks, KeyEvent e,int condition, boolean pressed) {
final int selRow = getSelectedRow();
final int rowCount = getRowCount();
final int selCol = getSelectedColumn();
final EventObject obj = (EventObject) e;
if (selRow == -1) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
changeSelection(0, 1, false, false);
editCellAt(0, 1, obj);
boolean isSelected = false;
if ((ks == KeyStroke.getKeyStroke(KeyEvent.VK_TAB,0)) ||
(ks == KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,0))) {
if (selCol == 1) {
isSelected= getCellEditor(selRow,selCol).stopCellEditing();
targetRow = (selRow + 1) % rowCount;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
if (editCellAt(targetRow, 1, obj)) {
changeSelection(targetRow, 1, false, false);
getComponentAt(targetRow, 1).requestFocus();
} else {
getCellEditor(selRow, selCol).shouldSelectCell(obj);
return super.processKeyBinding(ks,e,condition,pressed);
</pre>
Relevant code of my custom editor is below....
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
lastEditedRow = row;
lastEditedCol = column;
lastEditedTable = table;
lastEditedValue = value;
val = value;
((JTextField)editorComponent).
setText(val == null ? "" : val.toString());
setClickCountToStart(1);
if (value instanceof CycCollectionChooserModel) {
String collection = ((CycCollectionChooserModel)value).
getCollection().cyclify();
button.setVisible(EditorForCollectionMap.hasUIEditor(collection));
button.setMargin (new Insets (1,1,1,1));
button.setIconTextGap(0);
buttonListener.model = (CycCollectionChooserModel)value;
buttonListener.rowIndex = row;
buttonListener.localTable = table;
return panel;
public boolean isCellEditable(EventObject evt) {
if (evt instanceof MouseEvent) {
int clickCount;
clickCount = 1;
return ((MouseEvent)evt).getClickCount() >= clickCount;
return super.isCellEditable(evt);
public boolean stopCellEditing() {
if (super.stopCellEditing()) {
final int targetRow = (lastEditedRow+1)%lastEditedTable.getRowCount();
SwingUtilities.invokeLater(new Runnable() {
public void run() {
lastEditedTable.changeSelection(targetRow, 1, false, false);
lastEditedTable.getComponentAt(targetRow, 1).requestFocus();
return true;
return false;
Does any one know why I am not able to see the caret? Any insights you have will be most welcome.
Thanks in advance,
Praveen.

Almost solved the problem. Navigation through Tab key, up/ down arrow, Enter key works for text boxes. Navigation through Tab Key, Up/down arrow works for combo boxes. But for "Enter" key it doesnt. Changes in code ....
(I have added a key listener to my editor class)
<pre>
protected boolean processKeyBinding(KeyStroke ks, KeyEvent e,int condition, boolean pressed) {
final int selRow = getSelectedRow();
final int rowCount = getRowCount();
final int selCol = getSelectedColumn();
final EventObject obj = (EventObject) e;
if (selRow == -1) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
changeSelection(0, 1, false, false);
editCellAt(0, 1, obj);
boolean isSelected = false;
if ((ks == KeyStroke.getKeyStroke(KeyEvent.VK_TAB,0)) ||
(ks == KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,0)) ||
(ks == KeyStroke.getKeyStroke(KeyEvent.VK_DOWN,0))) {
if (selCol == 1) {
final int targetRow = (selRow + 1) % rowCount;
getCellEditor(selRow,selCol).stopCellEditing();
SwingUtilities.invokeLater(new Runnable() {
public void run() {
editCellAt(targetRow, 1, obj);
changeSelection(targetRow, 1, false, false);
getComponentAt(targetRow, 1).requestFocus();
if ((ks == KeyStroke.getKeyStroke(KeyEvent.VK_UP,0))||
(ks == KeyStroke.getKeyStroke(KeyEvent.VK_TAB,1))) {
if (selCol == 1) {
final int targetRow = (selRow - 1) % rowCount;
getCellEditor(selRow,selCol).stopCellEditing();
SwingUtilities.invokeLater(new Runnable() {
public void run() {
editCellAt(targetRow, 1, obj);
changeSelection(targetRow, 1, false, false);
getComponentAt(targetRow, 1).requestFocus();
return super.processKeyBinding(ks,e,condition,pressed);
public class FactEditorComboBoxTableEditor extends DefaultCellEditor implements KeyListener{
//// Constructors
/** Creates a new instance of FactEditorComboBoxTableEditor. */
public FactEditorComboBoxTableEditor(JComboBox comboBox) {
super(comboBox);
JTextField TF =(JTextField)((ComboBoxEditor)comboBox.getEditor()).
getEditorComponent();
TF.addKeyListener(this);
public class FactEditorComboBoxTableEditor extends DefaultCellEditor implements KeyListener{
//// Constructors
/** Creates a new instance of FactEditorComboBoxTableEditor. */
public FactEditorComboBoxTableEditor(JComboBox comboBox) {
super(comboBox);
JTextField TF =(JTextField)((ComboBoxEditor)comboBox.getEditor()).
getEditorComponent();
TF.addKeyListener(this);
</pre>
P.S : viravan, help me solve this problem and you will get the rest of the dukes LOL

How to use the cell editor in FICO reports for YTD

HI experts,
I am working with BI7.0, in the below report, i have displayed result based on user input.but how to calculate the YTD values. User will give the input like 072007, results will be display one year from 072007 to 062006 (one yearback) and one more column is YTD
Report structure is :
     user input(single value): 072007
          AUG06....JAN07....JULY07....YTD
KEYFIGURE-1        453      -
777     -
   232       -
777 (Only Jan07 value of Keyfigure-1)
KEYFIGURE-2        879      -
233        -
123       -
???? (only sum from Jan07 to July07)
KEYFIGURE-3        212            -
879      -
989                -
KEYFIGURE-4        234            -
656      -
788                   -
KEYFIGURE-5        345            -
878      -
878                 -
KEYFIGURE-6        767            -
767       -
323                 -
KEYFIGURE-7        879            -
878     -
999                -
999 (Only last value of keyfigure-7 (July07)
in the above report, total 7 keyfigures so 7rows of YTD column
1) in the first YTD column, how will display only one value (keyfigure-1) of Jan07?
2) in the last YTD Column, how will display only one value (keyfigure-7) of July07?
3) from 2 to 6 columns of YTD, how will display the sum from Jan07 to July07?
Note: months will be changed based on user input(single Value)
how can use cell editor for above the senior.
if any option is availabel please let me know
Thanks
kishore

I think the following should work:
Context:
Rows (node,c=0:n)
--- rowIndex (integer)
selectedRowIndex (integer)
Bind the "selectedKey" property of the radio button (cell editor) to attribute "selectedRowIndex" (outside table data source node) and bind "keyToSelect" to attribute "Rows.rowIndex". Make sure that the "rowIndex" attribute will contain the index of the node element in node "Rows".
Armin

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

How to use cell editors in JTree?

Hi,
I have a component where I am placing JTable in JTree node.The table cells should be editable.
I was unable to do that.
I am giving code for 2 classes below,which I used.
To test this compile the classes seperately.
/**************************TableInTree.java(main class)**************/
import java.awt.Component;
import javax.swing.*;
import javax.swing.tree.*;
import java.util.*;
public class TableInTree extends JFrame
public TableInTree()
super("TableInTree");
JTree tree = new JTree(this.createTreeModel());
tree.setCellRenderer(new ResultTreeCellRenderer());
tree.setEditable(true);
this.getContentPane().add(new JScrollPane(tree));
public static void main(String[] args)
TableInTree frame = new TableInTree();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(800, 600);
frame.show();
// * Method createRootNodes.
private TreeModel createTreeModel()
DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("test1");
node1.add(new DefaultMutableTreeNode(new TableRenderDemo)));
root.add(node1);
root.add(new DefaultMutableTreeNode("test2"));
return new DefaultTreeModel(root, true);
public static class ResultTreeCellRenderer extends DefaultTreeCellRenderer
public Component getTreeCellRendererComponent(JTree t, Object value,boolean s, boolean o,boolean l, int r, boolean h)
if (value instanceof DefaultMutableTreeNode)
DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;
if (node.getUserObject() instanceof TableRenderDemo)
return new JScrollPane((TableRenderDemo) node.getUserObject());
return super.getTreeCellRendererComponent(t, value, s, o, l, r, h);
/*******************TreeRenderDemo.java**************************/
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.table.*;
import java.awt.*;
* TableRenderDemo is just like TableDemo, except that it
* explicitly initializes column sizes and it uses a combo box
* as an editor for the Sport column.
public class TableRenderDemo extends JPanel {
private boolean DEBUG = false;
public TableRenderDemo() {
super(new GridLayout(1,0));
JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
//Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
//Set up column sizes.
initColumnSizes(table);
//Fiddle with the Sport column's cell editors/renderers.
setUpSportColumn(table, table.getColumnModel().getColumn(2));
//Add the scroll pane to this panel.
add(scrollPane);
* This method picks good column sizes.
* If all column heads are wider than the column's cells'
* contents, then you can just use column.sizeWidthToFit().
private void initColumnSizes(JTable table) {
MyTableModel model = (MyTableModel)table.getModel();
TableColumn column = null;
Component comp = null;
int headerWidth = 0;
int cellWidth = 0;
Object[] longValues = model.longValues;
TableCellRenderer headerRenderer =
((JTableHeader)table.getTableHeader()).getDefaultRenderer();
for (int i = 0; i < 5; i++) {
column = table.getColumnModel().getColumn(i);
comp = headerRenderer.getTableCellRendererComponent(
null, column.getHeaderValue(),
false, false, 0, 0);
headerWidth = comp.getPreferredSize().width;
comp = table.getDefaultRenderer(model.getColumnClass(i)).
getTableCellRendererComponent(
table, longValues,
false, false, 0, i);
cellWidth = comp.getPreferredSize().width;
if (DEBUG) {
System.out.println("Initializing width of column "
+ i + ". "
+ "headerWidth = " + headerWidth
+ "; cellWidth = " + cellWidth);
//XXX: Before Swing 1.1 Beta 2, use setMinWidth instead.
column.setPreferredWidth(Math.max(headerWidth, cellWidth));
public void setUpSportColumn(JTable table,
TableColumn sportColumn) {
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("Snowboarding");
comboBox.addItem("Rowing");
comboBox.addItem("Knitting");
comboBox.addItem("Speed reading");
comboBox.addItem("Pool");
comboBox.addItem("None of the above");
sportColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
sportColumn.setCellRenderer(renderer);
class MyTableModel extends AbstractTableModel {
private String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};
private Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Knitting", new Integer(2), new Boolean(false)},
{"Sharon", "Zakhour",
"Speed reading", new Integer(20), new Boolean(true)},
{"Philip", "Milne",
"Pool", new Integer(10), new Boolean(false)}
public final Object[] longValues = {"Sharon", "Campione",
"None of the above",
new Integer(20), Boolean.TRUE};
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
* Don't need to implement this method unless your table's
* editable.
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col < 2) {
return false;
} else {
return true;
* Don't need to implement this method unless your table's
* data can change.
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
data[row][col] = value;
fireTableCellUpdated(row, col);
if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[j]);
System.out.println();
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
private static void createAndShowGUI() {
//Make sure we have nice window decorations.
//JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("TableRenderDemo");
//frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
TableRenderDemo newContentPane = new TableRenderDemo();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
Please give me a solution.
thanks in advance

rebounce

How to use Radiobutton Cell Editor in Table using Master Column

Hi Guys,
I have a Table that uses a Master Column. I need to have a field that uses a Radio Button type cell editor. A user should only be ably to select ONE row via the Radio Button at a time.
I have done all this but I only seem to be able to select multiple radio buttons instead of only one. It is like the radio buttons do not get "regognised" as a group. Could you please advise as I probably set the "keyToSelect" and "selectedKey" properties incorrectly.
tks
Christiaan

I think the following should work:
Context:
Rows (node,c=0:n)
--- rowIndex (integer)
selectedRowIndex (integer)
Bind the "selectedKey" property of the radio button (cell editor) to attribute "selectedRowIndex" (outside table data source node) and bind "keyToSelect" to attribute "Rows.rowIndex". Make sure that the "rowIndex" attribute will contain the index of the node element in node "Rows".
Armin

When do I need to use a cell editor in a JTree?

I'm currently trying to add checkboxes to nodes in a JTree. I use a panel containing the check box and a label for rendering. I did this because I want only the checkbox to respond to a mouse click and not the text associated with it. I've read several articles online (including the tutorial) and seen sample code as well. Do I need a cell editor or just have a cell renderer with a mouse listener? I've seen it done both ways.

Let me rephrase the question.
If I want to display a checkbox and a label as a node in a Jtree, which way should this be done (with or without a cell editor)? What are the advantages/disadvantages to each approach and what is recommended by Sun?
I ended up not using a cell editor, but I've read posts on various sites where it was stated that if the user has interaction with the node then an editor should be used (with no other explanation as to why). I guess my main concern is that there might be a down side from not using a cell editor that I'm not aware of.

How can one resize a cell editor when in use in a JTree?

It is possible to resize, for example, a JTextArea cell editor while it is being used in a JTable by having a document listener check the preferred height and then changing the rowHeight of the table to fit that. This gives the nice effect of the table expanding and contracting in size as required while it is being edited.
I would also like to this this for a Jtree. But one cannot reset the height of an individual JTree row, and although it can be set up to get the correct height when the editor or renderer is installed (via setRowHeight(0)), there does not seem to be a way to dynamically adjust this height while editing.
This would be very nice to be able to do. (I would say it should be required of a good tree component that it allow this).
Is there some way I am missing? It seems like there is no difficult constraint on the design of Jtree which should make this difficult in principle.

You cannot download apps from another country's store unless you have an account in that country which means having a credit card that is tied to a physical address in that country.
AFAIK, you cannot add more dictionaries to the collection that. Apple has provided. There is no way to add any plug ins, or enhancements to any of the built to in apps or iOS functions.

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
     private JFrame frame;
     private String[] columnNames = {"Classroom", "8:00-9:10", "9:25-10:35",
          "10:50-12:00", "12:15-1:25", "1:40-2:50", "1:40-3:20 (MW)",
          "3:35-5:15 (MW)", "5:30-7:10 (MW)"};
     private Object[][] data = {columnNames,
          {"ALAM 201 (42)\nENG 110 LAB", "", "", "", "", "", "", "", ""},
          {"ALAM 202 (42)\nDP/DVD", "", "", "", "", "", "", "", ""},
          {"ALAM 203 (38)\nDP/DVD", "", "", "", "", "", "", "", ""},
          {"ALAM 205 (40)\n", "", "", "", "", "", "", "", ""},
          {"ALAM 206 (39)\nSINK, TV/VCR", "", "", "", "", "", "", "", ""},
          {"ALAM 207 (40+)\nDP/DVD", "", "", "", "", "", "", "", ""},
          {"ALAM 214 (38)\nTV/VCR", "", "", "", "", "", "", "", ""},
          {"ALAM 215 (42)\nTV/VCR", "", "", "", "", "", "", "", ""},
          {"ALAM 216 (42)\n", "", "", "", "", "", "", "", ""},
          {"ALAM 301 (40)\nTV/VCR", "", "", "", "", "", "", "", ""},
          {"ALAM 302 (38)\nDP/DVD", "", "", "", "", "", "", "", ""},
          {"ALAM 304 (35)\nFRENCH", "", "", "", "", "", "", "", ""},
          {"ALAM 314 (30)\nDP, PSY, COMPUTER ASSISTED", "", "", "", "", "", "",
          {"ALAM 315 (40)\nPC LAB, DP/DVD", "", "", "", "", "", "", "", ""}};
     private JTable table;
     public GUI()
          frame = new JFrame();
          table = new JTable(data, columnNames);
          table.setRowHeight(table.getRowHeight()*2);
          TableColumnModel cModel = table.getColumnModel();
          TextAreaRenderer renderer = new TextAreaRenderer();
          TextAreaEditor editor = new TextAreaEditor();
          for (int i = 0; i < cModel.getColumnCount(); i++)
               cModel.getColumn(i).setCellRenderer(renderer);
               cModel.getColumn(i).setCellEditor(editor);
          frame.setLayout(new GridLayout(1,0));
          frame.add(table);
          frame.pack();
          frame.setVisible(true);
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));
* Look through all columns and get the renderer. If it is
* also a TextAreaRenderer, we look at the maximum height in
* its hash table for this row.
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
     }

I am really stuck with JCheckBox using it as a JTable cell editor...

i need to focus next table cell, when user press a key on JcheckBox used in JTable as a cell editor.
Especially i need to bind "ENTER" key with this action. I tried to addKeyListener do checkbox, tried to add action into input maps of jatble, and also to input map of checkbox. But really nothing works. Please help....
Mathew, HSIGP

and yes your code works well with any key, but when i want to assign something to "ENTER", it doesnt work. F.ex. if i assign something to "A" key
like>
InputMap m=table.getInputMap(WHEN_ANCETSTOR...);
m.put(KeyStroke.get("A"),m.get(KeyStroke.get("TAB"));
it works fine, and when i press "a" key it work as a "tab" key in table.
But when i am doing same with "enter" instead of "a" it doesnt work.
btw. there is action "actionselectNextCollumn..." assigned by default to enter
why??

Create a VC Model for BEx queries with Cell Editor

Hello All,
I am trying to create a VC Model for BEx queries with Cell Editor.
BW Development Team has created a BEX query with complex restrictions and calculations using Cell Editor feature of BI-BEX.
The query output in BEx analyzer is correct where all values are being calculated at each Cell level and being displayed.
But, while creating VC model, system is not displaying the Cells.Thus, no VC Model can be created.
I have executed below steps:
1. Created a VC Model for BEx Query - ZQRY_XYZ
2. Create Iview -> Create a dataService -> Provide a Table from the Output
In the Column field system is not showing any of the Cells (present in Cell Editor)
Please help me to solve this issue.
Thanks,
Siva

Hi
If 'Cell Editor' is been used then that query must have the structure in it. You have to select that 'structure' object in your 'VC Table'.
If you select that then you will get the required result in the output. This structure will be the structure where 'cell reference' is used in BI query, You have to select that structures name.
Regards
Sandeep

Dynamically change the cell editor in the table control

Hi..
I have 3 columns in a table . of which in one column we need to change the cell editor dynamically at runtime.
i.e for example i have columns as carrid, connid and fldate.
For the first 2 rows the cell editor for the carrid clomn shud be a dropdown and from there on in the next rows for the same carrid column it shud be a input field.
Can experts plz help me how to achieve this as this is very high priority issue....
Regards,
Madhu...

This is actaully fairly simple to do. You will need to add a cellVariant to your table column. You can then dataBind a context attribute to the selectedCellVariant property of the column to control which cellVariant will be used. This allows you to control row-by-row which cell editor you want to output.
http://help.sap.com/saphelp_nw70/helpdata/EN/bd/5d9041d3c72e7be10000000a1550b0/frameset.htm
http://help.sap.com/saphelp_nw70/helpdata/EN/56/5e9041d3c72e7be10000000a1550b0/frameset.htm
Also here is an example that I did the other day that uses Cell Variants within ALV. This process is actually a little more complicated because you have to go through the ALV APIs. To do this in a normal table is actually easier because you can create the cellVariant in the layout designer.
Re: Freely-programmed value help for a single ALV cell

Multi line issue in Table Cell Editor

Hi,
I am developing an occasionally connected application for handheld devices using NetWeaver Mobile 7.1. In one of the view, I have a table which display items information from the data source. In one of the column I need to display item description so I used TextEdit in the Cell Editor to display the information in multi line format and also wrapping is enabled.
But during testing of the application the TextEdit control does not wraps the text and as well as only first line of TextEdit control is visible inside the table and rest of the rows are not visible because of table's row height is not adjusted to the TextEdit control. I couldn't find any option to vary the size of the row height of the table.
Please suggest a solution to bring multi line display with in the table.
Also, check out my other issue posted here.
[Issue in wrapping of text in TextEdit control|Issue in wrapping of text in TextEdit control]
Thanks in advance.
Regards,
DVR.
Edited by: Vinodh Raj D on May 28, 2009 8:18 AM

Hi Vinodh,
Mutliline text in a text view/edit control inside a table cell is not supported.
You can view multiline text in a text view/edit as a seperate control inside a view. I think in case you want to see the whole address you can create a detail(s) view which can be navigated from the list (table) view.
Regards,
Nipun

How to display an image in particular cell editor

Hi All,
I want to display an image as the background for the table cell.
I searched in sdn and found the solution only for link to action.
I have created a dynamic table and if i click on apply button one more row is getting added according to my requirement.
I want to differentiate this row from rest. So I need to display image for the last row in the table which is added newly.
Can anyone suggest the procedure for adding an image in a particular cell editor along with the table data?
Hope I am clear with my requirement.
Pls suggest.
Regards,
subashini

Hi,
IF iam not wrong then for some rows u need to show text data and for some rows u need to show image data.
follow the following steps.
1. In ur table add cell editor of type Image.
2.Create a value node with one more than required attributes.
3.Suppose if need to show only one column then i will create
value node with two attributes.One attribute will be for text
data and one will for Image.
4.now access ur table cell editor dynamically.For image type
cell editor we need to play only with two properties source
and alt.Bind this alt property of editor wid that attribute which u
need use for text data and source wid that attribute which u
need to use for image.
5. Now suppose I need to show text data then
I will create one element of that value node.In case of Image
type cell editor source property is given prefrence over alt
property.
set attribute which is bound to alt to the actual text data
i.e setText("Actual text data");
and set attribute which is bound to source to some dummy
image name
i.e setImage("dummy.gif");
add this to node.
during execution as source property of editor is bound to
Image attribute of node which in turn is set to dummy value it
wont find actual source and will set Image cell editor with
watever is bound to alt property which in turn set with actual
text value..
6. Now suppose I need to show Image data then
I will create one element of that value node.In case of Image
type cell editor source property is given prefrence over alt
property.
set attribute which is bound to alt to blank value
i.e setText("");
and set attribute which is bound to source to some Actual
image name
i.e setImage("Image.gif");
add this to node.
during execution as source property of editor is bound to
Image attribute of node which in turn is set to Actual image file
it will set Image cell editor with that image name and wont look for alt property.
Copy all ur images in src->mimes->components->ur package
Regards
Surender Dahiya

Cell editor use

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