Cell Editing

Is there a way to turn on and off cell editable property in a JTable?

Override the isCellEditable(...) method of JTable to return false.

Similar Messages

How can i make perticular row or perticular cell Editable of a JTable

Dear al,
can u help me by guiding me for the problem of...
i am having a JTable, in which a (first)column of each row is having a checkbox field.
If the checkbox is checked then and then i should able to modify the cells in that row where the checkbox is.
I have created the table with AbstractTableModel of which the isCellEditable(int row, int col) method is overwriten. Whatever return value (true/false) reflects the perticular
cells becomes editable/non-editable respectively.
but at run time...(mean the table is created now) and now i want to make the cells editable/non-editable depending on the checkbox value...
how can i implement it.........
please suggest.........
thank you.........

here is the sample code from tutorial.......
* TableRenderDemo.java requires no other files.
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
* 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.
@SuppressWarnings("serial")
public class TableRenderDemo extends JPanel {
     private boolean DEBUG = true;
     public TableRenderDemo() {
          super(new GridLayout(1, 0));
          JTable table = new JTable(new MyTableModel());
          // table.setEditingColumn(0);
          // table.editCellAt(0, 0);
          table.setPreferredScrollableViewportSize(new Dimension(500, 100));
          // 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 = 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.
               // return false;
               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[i][j]);
                    System.out.println();
               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() {
          // 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);
     public static void main(String[] args) {
          // Schedule a job for the event-dispatching thread:
          // creating and showing this application's GUI.
          javax.swing.SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    createAndShowGUI();

How to make cell editable alv in WebDynpro for ABAP?

I make Column editable ALV.(See under source code)
But I can't make Cell editable ALV.
How to make Cell editable ALV in WebDynpro for ABAP?
and..how to get changed data?
DATA: l_value TYPE REF TO cl_salv_wd_config_table.
l_value = l_ref_interfacecontroller->get_model( ).
* { EDITABLE
DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings,
        lr_input_field     TYPE REF TO cl_salv_wd_uie_input_field,
        lr_column          TYPE REF TO cl_salv_wd_column.
lr_column_settings ?= l_value.
lr_column = lr_column_settings->get_column( 'TOTAL_COUNT' ).
CREATE OBJECT lr_input_field
    EXPORTING
      value_fieldname = 'TOTAL_COUNT'.
lr_column->set_cell_editor( lr_input_field ).
DATA: lr_table_settings TYPE REF TO if_salv_wd_table_settings.
lr_table_settings ?= l_value.
lr_table_settings->set_read_only( abap_false ).

the code seems to be correct....but where are you writing it?
put the code in the wddoinit method and it should work.
have a look at this article..
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3133474a-0801-0010-d692-81827814a5a1

Need help serializing an AbstractTableModel for a JTable with cell editing.

Fun times are ahead. Here we go!
I have a JTable that contains data I'd like to serialize out to a file to be restored and viewed later.
So I tried saving the AbstractTableModel subclass out to a file. Whenever I do this, I get the following error message:
java.io.NotSerializableException: javax.swing.JTable$CellEditorRemover
Now I know for fact that serializing an AbstractTableModel that was installed in a JTable without cell editing works just fine (my old code did exactly that). As a result, I think that the code that handles events in the AbstractTableModel contains references back out to the JTable, which causes the JTable to be saved no matter what (even though I'm just interested in saving the TableModel only). It causes a bigger file than normal, but file size is not an issue. The only issue I have is that CellEditorRemover (an undocumented inner class of JTable), which is automatically installed for JTables with editable cells, is not serializable.
This leads to the following questions:
1. Is there a way to avoid serialization/deserialization of the CellEditorRemover inner class of JTable?
2. Is there a way to save an AbstractTableModel without saving all of the event listeners associated with it?
I think an answer to either of these questions would go a long way towards solving my problem. Otherwise, I'll resign myself to weeping silently in the corner of my office.
Thanks!

I would suggest that if you can you only save the
data... but i would do this by using the
externalizable interface.
What you will need to do is have the
writeExternal(ObjectOutputStream out) and
readExternal(ObjectOutputStream out) methods in your
class. These will be responsiable for saving the
data.
Here's an example of what you can do in these
methods... this is just a little tidbit from a program
i've written.public void writeExternal(ObjectOutput out) throws
IOException {
          out.writeInt(size);
          out.writeObject(drawName);
          out.writeInt(playersLength);
for(int i = 0; i < playersLength; i++)
) out.writeObject(players);
          out.writeInt(seedsLength);
for(int i = 0; i < seedsLength; i++)
) out.writeObject(seeds[i]);
          out.writeInt(drawLength);
for(int i = 0; i < drawLength; i++)
) out.writeObject(draw[i]);
public void readExternal(ObjectInput in) throws
IOException, ClassNotFoundException {
          size = in.readInt();
          drawName = (String)in.readObject();
          playersLength = in.readInt();
for(int i = 0; i < playersLength; i++) players[i] =
= (String)in.readObject();
          seedsLength = in.readInt();
for(int i = 0; i < seedsLength; i++) seeds[i] =
= (String)in.readObject();
          drawLength = in.readInt();
for(int i = 0; i < drawLength; i++) draw[i] =
= (String)in.readObject();
You can now use your class as you would a Serializable
class, but it will only save the data
Hope this helped
webaf409java
I forgot to add some critical information in my original post. My apologies. :(
I've thought about using Externalizable, but am hesitant to use it because the application would no longer be able to read in files using the old save format (ie, AbstractTableModels for JTables without CellEditorRemovers ). I want to preserve the ability to read the old saved AbstractTableModel formats if possible.
Do you know of a way to revert to the default deserialization mechanism from readExternal? This way, during deserialization, I could do a quick test on the object being read and have the ability to default to the regular deserialization mechanism if the object is of the old type or continue with the new Externalizable stuff if the object is one of the new type. Maintaining file compatibility is key.

Toggle between allowing cell editing and disallowing....

Hi,
I have an edit button and when clicked it allows the user to edit all cells on the table, when clicked again all cell editing is disabled. I have a method which is called by the edit button event handler which works fine.. what to put in the method is the problem!
I was using:
private void setTableEnabled(boolean enable){
         if(enable)
             table.setCellSelectionEnabled(true);
             table.setEnabled(true);
             table.setBackground(enabledTableColour);
         else
             table.setCellSelectionEnabled(false);
             table.setEnabled(false);
             if(table.isEditing())
             {     table.getCellEditor().stopCellEditing();
             table.setBackground(disabledTableColour);
     }This code worked except when i use the table.setEnabled(false) my dropdowns don't work. The editing needs to be disabled when the application is loaded. i dont know why it effects my dropdown menus...
Any ideas why or how i could go about it another way?
Would really appreciate any help or insight!
Thanks,
Saz
***

I was using:
private void setTableEnabled(boolean enable){
         if(enable)
             table.setCellSelectionEnabled(true);
             table.setEnabled(true);
             table.setBackground(enabledTableColour);
         else
             table.setCellSelectionEnabled(false);
             table.setEnabled(false);
             if(table.isEditing())
             {     table.getCellEditor().stopCellEditing();
             table.setBackground(disabledTableColour);
You should make use of the fact that a boolean can only have 1 of two values... You don't need to check it with an if, so your code can be rewritten as:
    private void setTableEnabled(boolean enable){
        table.setCellSelectionEnabled(enable);
        table.setEnabled(enable);
        if (enable) {
            table.setBackground(enabledTableColour);
        } else {
            table.getCellEditor().stopCellEditing();
            table.setBackground(disabledTableColour);
This code worked except when i use the
table.setEnabled(false) my dropdowns
don't work. The editing needs to be disabled when the
application is loaded. i dont know why it effects my
dropdown menus...What dropdowns?

Stopping cell editing in a JTable using a JComboBox editor w/ AutoComplete

Hi there! Me again with more questions!
I'm trying to figure out the finer parts of JTable navigation and editing controls. It's getting a bit confusing. The main problem I'm trying to solve is how to make a JTable using a combo box editor stop editing by hitting the 'enter' key in the same fashion as a JTextField editor. This is no regular DefaultCellEditor though -- it's one that uses the SwingX AutoCompleteDecorator. I have an SSCCE that demonstrates the issue:
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.AbstractCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.WindowConstants;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableModel;
import org.jdesktop.swingx.autocomplete.AutoCompleteDecorator;
public class AutoCompleteCellEditorTest extends JFrame {
public AutoCompleteCellEditorTest() {
    JTable table = new JTable();
    Object[] items = {"A", "B", "C", "D"};
    TableModel tableModel = new DefaultTableModel(2, 2);
    table.setModel(tableModel);
    table.getColumnModel().getColumn(0).setCellEditor(new ComboCellEditor(items));
    getContentPane().add(table);
    setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    pack();
private class ComboCellEditor extends AbstractCellEditor implements TableCellEditor {
    private JComboBox comboBox;
    public ComboCellEditor(Object[] items) {
      this.comboBox = new JComboBox(items);
      AutoCompleteDecorator.decorate(this.comboBox);
    public Object getCellEditorValue() {
      return this.comboBox.getSelectedItem();
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
      comboBox.setSelectedItem(value);
      return comboBox;
public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
      public void run() {
        new AutoCompleteCellEditorTest().setVisible(true);
}Problem 1: Starting to 'type' into the AutoCompleteDecorate combo box doesn't cause it to start editing. You have to hit F2, it would appear. I've also noticed this behaviour with other JComboBox editors. Ideally that would be fixed too. Not sure how to do this one.
Problem 2: After editing has started (say, with the F2 key), you may start typing. If you type one of A, B, C, or D, the item appears. That's all good. Then you try to 'complete' the edit by hitting the 'enter' key... and nothing happens. The 'tab' key works, but it puts you to the next cell. I would like to make the 'enter' key stop editing, and stay in the current cell.
I found some stuff online suggesting you take the input map of the table and set the Enter key so that it does the same thing as tab. Even though that's not exactly what I desired (I wanted the same cell to be active), it didn't work anyway.
I also tried setting a property on the JComboBox that says that it's a table cell editor combo box (just like the DefaultCellEditor), but that didn't work either. I think the reason that fails is because the AutoCompleteDecorator sets isEditable to true, and that seems to stop the enter key from doing anything.
After tracing endless paths through processKeyBindings calls, I'm not sure I'm any closer to a solution. I feel like this should be a fairly straightforward thing but I'm having a fair amount of difficulty with it.
Thanks for any direction you can provide!

Hi Jeanette,
Thanks for your advice. I looked again at the DefaultCellEditor. You are correct that I am not firing messages for fireEditingStopped() and fireEditingCancelled(). Initially I had copied the behaviour from DefaultCellEditor but had trimmed it out. I assumed that since I was extending AbstractCellEditor and it has them implemented correctly that I was OK. But I guess that's not the case! The problem I'm having with implementing the Enter key stopping the editing is that:
1) The DefaultCellEditor stops cell editing on any actionPerformed. Based on my tests, actionPerformed gets called whenever a single key gets pressed. I don't want to end the editing on the AutoCompleteDecorated box immediately -- I'd like to wait until the user is happy with his or her selection and has hit 'Enter' before ending cell editing. Thus, ending cell editing within the actionPerformed listener on the JComboBox (or JXComboBox, as I've made it now) will not work. As soon as you type a single key, if it is valid, the editing ends immediately.
2) I tried to add a key listener to the combo box to pick up on the 'Enter' key and end the editing there. However, it appears that the combo box does not receive the key strokes. I guess they're going to the AutoCompleteDecorator and being consumed there so the combo box does not receive them. If I could pick up on the 'Enter' key there, then that would work too.
I did more reading about input maps and action maps last night. Although informative, I'm not sure how far it got me with this problem because if the text field in the AutoCompleteDecorator takes the keystroke, I'm not sure how I'm going to find out about it in the combo box.
By the way, when you said 'They are fixed... in a recent version of SwingX', does that mean 1.6.2? That's what I'm using.
Thanks!
P.S. - Maybe I should create a new question for this? I wanted to mark your answer as helpful but I already closed the thread by marking the answer to the first part as correct. Sorry!
Edited by: aardvarkk on Jan 27, 2011 7:41 AM - Added SwingX versioning question.

Making individual row or cell editable or readonly depend on cell data

Dear expert
I'm working with dataGrid and itemEditor. I can make some
column editable. But I would like to know how to set some specific
row or cell editable or readonly depend on cell data. Could anybody
guide me which method should I override or any idea?
Thanks

Well a simply way would be if the row contained some kind of
data that had the info to determine if it was editable or not...
e.g. say the data in the dataProvider of the dataGrid has a field
called jobTitle and you didn't want cells in that row editable when
the jobTitle is "Executive".
<mx:DataGrid dataProvider="{jobData}" editable="true">
<mx:columns>
<mx:Array>
<mx:DataGridColumn headerText="Title" dataField="Title"
itemEditor="titleEditor"/>
<mx:DataGridColumn headerText="Phone" dataField="Phone"
itemEditor="phoneEditor"/>
</mx:columns>
</mx:DataGrid>
Your itemEditor's could check to see if thats the case.
phoneEditor.mxml
<?xml version="1.0"?>
<mx:TextInput xmlns:mx="
http://www.adobe.com/2006/mxml"
text="{data.Phone}" creationComplete="checkIfEditable()" >
<mx:Script>
public function checkIfEditable():void
if(data.Title == 'Executive') this.editable=false;
</mx:TextInput>

JTable and last cell edited

Hi all,
I have a jtable that is populated from an sql table.
When I edit the cells, I push on a botton that updates the table.
The problem I am facing is in the last cell edited, I need to click on another cell for me to be able to read its new value. i.e. in another word the cell needs to loose focus for me to be able to read is new values.
Thanks in advance for your help.
Best regards.
Saadi MONLA

Seems like a bug in JTable. Best solution is probably when the routine that feeds the new values into the JTable is completed, force a focus on a different cell and then back to your cell using an API method. If an API method doesn't exist to force focus to another cell (I just looked and didn't see one) then maybe executing a repaint() or something like that will cause it to redraw correctly.

Disable cell editing

Hi.
Can I disable cell editing in a JTable without using a TableModel and still let the user click on different cells?
/lars

You can subclass JTable and override isCellEditable().

Focus Lost on Tree Cell Edit

I am trying to force changes made in a tree cell edit when focus to that tree node has been lost(like on an enter button press) but it always reverts to the old value. i have tried adding a CellEditorListener to force an enter key press on the editingCanceled action but this still reverts the value.
Anyone have any ideas on how to fix this?
Thanks.

Hi,
Try to use
call method cl_gui_control=>set_focus exporting control = grid1.
a®

JTable - disable cell editing for whole table

I need to know how to disable cell editing for the whole of a JTable. Is there an easy way of doing this??

you can do it very easy :)
just override AbstractTableModel's isCellEditable(int row, int col) function
and return false is ok.
Hope this helps!

Reporting query - Cell editing

Hi Experts !!
I need some documents related to embedding multiple queries and formatting a workbook.
I need more info on cell editing.
Appreciate your help !!
Thanks.

hi yogita,
Check the below link for checking the cell editing functionality
[Cell editing|http://sap.seo-gym.com/celleditingBex.pdf]
Regards
KP
have you tried to search in google of SDN before posting?

IsCellEditable() to disable cell editing for specific columns

Hello experts:
My SSCCE for this question is at the below link:
http://forum.java.sun.com/thread.jspa?threadID=5293914&messageID=10244030#10244030
My question is how do I disable cell editing for all but the "Price" column of my table in the SSCCE. I tried adding the below lines of code right after creating the JTable. But get compilation errors.
//Here is the block of code that I am trying to include.
     @Override
     public boolean isCellEditable(int row, int col) {
     if (col == 7) {
               return true;
          } else {
               return false;
     } //Below is the method in detail03.java showing the block of code added
private JScrollPane BuildEmptyTable() {
     model = new DefaultTableModel();
     model.addTableModelListener( this );
     model.setColumnIdentifiers(new String[] { "SKU","Qty", "Price"});
        tblDetailTest = new JTable(model);
     @Override
     public boolean isCellEditable(int row, int col) {     //     <----- I tried placing the
     if (col == 7) {                                        //                  the code block here
               return true;
          } else {
               return false;
     tblDetailTest.setRowHeight(20);
     tblDetailTest.setPreferredScrollableViewportSize(new Dimension(900, 100));
     JTableHeader tblHdr = tblDetailTest.getTableHeader();
     tblHdr.setBackground(Color.yellow);
     JScrollPane scrollPane = new JScrollPane(tblDetailTest);
     return scrollPane;
}Can somebody please guide me? Thank you very much.

oops!
Sorry, my bad! I did not tell you what I tried. Following your suggestion, I made the following 2 changes to the code:
In the method, BuildEmptyTable(), where I build the table structure, I have the following statement:
     tblDetail = new JTable(model){
public boolean isCellEditable(int row, int col) {
       return col == 8;
};And in a separate method after the table is populated with data, I have the below code:
     tblDetail.getModel().addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent e) {
     if (e.getType() == TableModelEvent.UPDATE)
          int row = e.getFirstRow();
          int column = e.getColumn();
             if (column == 8){
               //code here
               System.out.println("Updating item price!");
     }I do understand that the message gets displayed as many number of times equal to number of rows inserted into the table, because of the UPDATE event. But my problem is I do not know how to make a code change to do what I exactly want, as I have indicated in my previous note. Meaning I want the listener to be called only when the
data in the editable cell changes.
Thank You.

Cell edit: in search for the holy control center

Struggling with fx cell editing turned up some issues, f.i. edits not always committed as expected (by me, expectation arguable, of course : -)
http://javafx-jira.kenai.com/browse/RT-15336
http://javafx-jira.kenai.com/browse/RT-15366
the last with a comment "unless the API is changed it is not possible to commit by default". Which naturally drove me into trying to understand and trace the current work-flow, visualized in scribbles of the collaborators:
http://www.flickr.com/photos/65941667@N02/6004789460/in/photostream#/
Some verbal decoration to the picture (beware: all tainted by my ignorance : -)
- looks like the place for client code (to a XXView, with XX == List, Table, Tree) which wants to modify its editing state is a method like
edit(SomePosition p);
// with
SomePosition == int, TablePosition, ...- that method is used internally by the corresponding XX/Cell/Behaviour to either start or terminate an edit, the latter by simply setting the position to "out-off-range", like f.i. -1
- the Cell is listening to that position and updates its editing state as appropriate. Doing so, it calls either startEdit or cancelEdit, which in turn notify the view's edit handler/s.
- note that commitEdit is not part of the collaboration
Now my comments:
- there's a need for some place (be it on the cell or view level, don't know) which supports full edit semantics
- a mere position is not strong enough to support those semantics
- the start/commit/cancel methods on the cell are for internal usage by the cell (and its subclasses), probably shouldn't be public
* Requests to start editing at the given position, returns true is started
* or false if not possible for some reason
boolean startEdit(SomePosition p);
* Requests to terminate an edit and commit the new value, returns true is
* committed or false if not possible for some reason.
* Note: this is for use by external (to the cell) clients, which can't have
* any knowledge about the current internal edited value!
boolean commitEdit();
* Requests to terminate an edit and throw away any new value.
void cancelEdit();looks familiar, hehe ... sure: it's copied from Swing cell editor (the event parameter changed to a mere position). The open - and not really easy to answer - question is where to put it, and how to fit that into the all-controlled-by-listening-to-property-changes philosophy .. could be interesting.
Cheers
Jeanette

Kleopatra wrote:
Struggling with fx cell editing turned up some issues, f.i. edits not always committed as expected (by me, expectation arguable, of course : -)
http://javafx-jira.kenai.com/browse/RT-15366
yet another variant of "let the developer cope with the harder stuff" - it's closed as wont-fix (because we are unwilling to change a lacking api ...)
CU
Jeanette

Making a Table cell editable. Please Help

Hello there,
I have written an Inner class called CallHeaderRenderer
which is used to select to highlight a row from a table.
But i am unable to edit the column data I click on.
Please can any one tell me how to edit the column value when you double click on it??
Attached is my Inner class used to select the concerned row.
I am unable to edit the concerned column.....
Please help.!!!
What is the statement to make the cell editable!!!
class CallHeaderRenderer extends DefaultTableCellRenderer{
public CallHeaderRenderer(){
super();
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
// Set the highlight for record chosen.
super.getTableCellRendererComponent(table,value,isSelected,hasFocus,row,column);
return this;
}

A renderer has nothing to do with editing the cell. I suggest you read this section from the Swing tutorial on "Using Tables" for an explanation of how tables work. The tutorial will give one method for making a cell editable:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
Here is an alternate way to make a cell editable:
table = new JTable( ... )
    public boolean isCellEditable(int row, int column)
        // All columns, except the first, are editable
        if (column == 0)
            return false;
        else
            return true;
};

Cell Editing

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