Jtable cell editor help!!

I have a JTable which is displaying 3 columns
One is a ID columns, second is name and third is seniority
Now in seniority there can only be 6 values so I am using a combo box to get the input from the user
However, In ID and Name column I dont understand what to use as a cell editor
In ID I want the input to be only from 0 to 99
while in Name it has to be a name and should not contain numbers....(optional)
please help me out...
thnx

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

Similar Messages

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    I have a custom JTable cell editor which is a JPanel with 2 JtextFields, One for a name, the other for a data value. My problem lies in when the the cell is selected and then the user start typing. The JTextfield outline shows up, but there is no carat. I can only edit the cell when I click the mouse in it again. I have my isCellEditable method set to only allow editing on 2 mouse clicks, but I did try it with just returning true and had the same problem. Please help.
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    e_col = column;
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    Thanks again for the repley.
    I tried removing the celleditorlistener and using the setSurrenderFocusOnKeystroke, but it did not work. The textfield is editable;
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    try {
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    new Runnable() {
    public void run() {ta.requestFocus();}
    } catch (Exception e) {};
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    }This allows the first textfield to request focus and this seems to work. But when I highlight a cell, then start typing, the first character I type puts me into the editor, but it is lost. Example:
    I type hello
    and get ello in the cell. Then when I press enter the input is excepted and the selection goes to the next cell, but I cannot move the Highlight cursor at all, seems locked. The only way I can continue to the next cell is to use the mouse.
    You said you had a cell editor working. Would you care to share as an example. This is killing me to get this to work properly.
    Thanks again
    Dave

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              {"ALAM 215 (42)\nTV/VCR", "", "", "", "", "", "", "", ""},
              {"ALAM 216 (42)\n", "", "", "", "", "", "", "", ""},
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    * Written by Dr. Heinz Kabutz, found through online newsletter via Google.
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    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:
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              // TODO Auto-generated method stub
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    table.removeEditor();
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    if (table.isEditing() && table.getCellEditor() != null){
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    table.removeEditor();
    This is probably not the only way to solve the problem but it was the way that worked when I encountered that issue.

  • Custom JTable cell editors and persistence

    I have a JTable with an underlying data model (an extension of AbstractTableModel) that uses custom cell editors in the last column. The cell editor in that column, for a given row, depends on the value selected in another column of the same row. The cell editors include text, date, list, and tree editors (the last one in a separate dialogue). The number of rows is changeable.
    I have need to persist the data for a populated table from time to time, for restoration later on. I've achieved that, such that the data model is recreated, the table appears correct, and the appropriate cell editors activated (by creating new instances of the editors' classes).
    However, my problem is that the (custom) cell editors do not reflect the data in the model when editing mode is begun the first time after restoration. Eg. the text editor is always empty, the list editor shows the first item, and no node is selected in the tree editor.
    If I've restored the model correctly, should the editors properly reflect the underlying data when they are set to editing mode?
    I suspected not, and thus tried to explicitly 'set' the correct values immediately after each editor is recreated ... but to no avail.
    Does anyone have any thoughts, or experience with something similar? I'm happy to supply code.

    You can use html tags within Swing, so I think you can do the following:
    * MyRenderer.java
    * Created on 26 April 2007, 10:27
    * To change this template, choose Tools | Template Manager
    * and open the template in the editor.
    package newpackage;
    import java.awt.Component;
    import javax.swing.JLabel;
    import javax.swing.JTable;
    import javax.swing.SwingConstants;
    import javax.swing.table.TableCellRenderer;
    * @author CS781RJ
    public class MyRenderer extends JLabel implements TableCellRenderer
        public MyRenderer()
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            setOpaque(true);
        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean cellHasFocus, int row, int column)
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                setBackground(table.getSelectionBackground());
                setForeground(table.getSelectionForeground());
            else
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                setForeground(table.getForeground());
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  • JTable cell editor not working

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

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

  • How to use Jtable cell Editor

    HI,
    Here trying to populate the ImageIcon using JLabel in Jtable cell. For that I used DefaultCellRenderer. For implement the mouseListener to label I used the DefaultCellEditor. I am facing one problem here. After editing the label I selected the second row of the table, the first row image is not displaying. Can any one help on this issue?
    public class LabelCellEditor extends DefaultCellEditor {
    public LabelCellEditor(final JCheckBox checkBox) {
    super(checkBox);
    public Component getTableCellEditorComponent(final JTable table, final Object value,
    final boolean isSelected, final int row, final int column) {
    Color background = null;
    background = ColorManager.SELECTED_ROW_BGCOLOR;
    labelVal = (JLabel) value;
    labelVal.setOpaque(true);
    labelVal.setFont(FontManager.TABLE_DATA_FONT);
    labelVal.setBackground(background);
    labelPanel = new JPanel();
    labelPanel.setOpaque(true);
    labelPanel.setBackground(background);
    labelPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
    labelPanel.setBorder(new EmptyBorder(5, 0, 0, 0));
    labelPanel.add(labelVal);
    return this.labelPanel;
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    return this.labelPanel;
    public class LabelCellRenderer extends DefaultTableCellRenderer {
    public LabelCellRenderer(final int alignment) {
    //setHorizontalAlignment(alignment);
    this.align = alignment;
    public Component getTableCellRendererComponent(final JTable table, final Object value,
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    if (value != null) {
    if (value instanceof JLabel) {
    labelVal = (JLabel) value;
    labelVal.setOpaque(true);
    labelVal.setFont(FontManager.TABLE_DATA_FONT);
    labelVal.setBackground(background);
    labelVal.setHorizontalAlignment(this.align);
    labelVal.setBorder(new EmptyBorder(0, LRPADD, 0, LRPADD));
    JPanel panel = new JPanel();
    panel.setOpaque(true);
    panel.setBackground(background);
    panel.setLayout(new FlowLayout(FlowLayout.LEFT));
    panel.setBorder(new EmptyBorder(5, 0, 0, 0));
    panel.add(labelVal);
    return panel;
    return this;
    }

    With more than 30 postings you should know by now how to use the "Code" tags when posting code so the code reatains its original formatting and is therefore more readable.
    There is no need to create a custom editor, here is a simple example.

  • 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>
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    But when i am doing same with "enter" instead of "a" it doesnt work.
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  • JTable Cell Editor For Decimal Input

    Hi friends in my program i am using jtable, in that table two columns are decimal value. I am using defaultcelleditor for to check the user input but it does not work. so how can i check the user input, ie number or string using the cell editor. My aim is to check the user input, if the user give the wrong value, ie string input the warning message want to be displayed and the editor color also want to change. Please help me.
    I refer some tutorials and get some source code and i used but it does not work. this is the code.
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        setHorizontalAlignment(JLabel.RIGHT);
        @Override
      public void setValue(Object value) {
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       public ProblemEditor(JFormattedTextField myfield) {
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           try
                    if(value!=null)
            d=Double.parseDouble(value.toString());   
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               d=0.0;
           ftf.setValue(d); // remove and okay
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           return ftf;
    }

    You might find it easer to use on of the [Table Format Renderers|http://www.camick.com/java/blog.html?name=table-format-renderers].

  • JTable cell editor and row selection

    I have a JTable with 8 columns and the last column is editable and has a custom table cell editor. The user can edit cells in that column or select a row and use buttons above the table to do such things as delete the row. So far so good. However if the user selects a row by clicking on a cell in the editable column and tries to delete the last row(for example) the row disappears except for the cell in the last column which is left hanging with the cursor in it.
    I do a table.clearSelection(). Do I need to set the focus elsewhere in the table?
    Help! and thanks.

    Before you delete the row, cancel the in-process editing:
    if( _table.isEditing() ) {
        _table.getCellEditor().cancelCellEditing();
    // Delete the row in the model

  • JTable cell editor problem

    Hi, I have a custom cell editor component being used on my JTable (a calendar component) and am having problems bringing the component out of edit mode when selecting another cell.
    If I click on a cell it enters edit mode correctly, the I can drop a popup window out from this editor to display the calendar. If however I move to another cell this window remains active.
    Could anyone explain how to come out of edit mode when moving to another cell (not necessarily selecting just moving the mouse in to another) ?
    I also have a second problem in that the calendar editor doesn't set the value in to the cell when choosing a date from the component. It keeps the original value that was in the cell. I have implemented a setValueAt() method so I'm not sure why this is not fired, any ideas?? Code is below :
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        private Vector vAllDueDates = null;
        private Connection conn = null;
        private Statement stmt = null;
        private ResultSet rsDueDates = null;
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        private String sSqlDueDates = null;
        private String[] testColNames = null;
        public DueDateTableModel(int pColCount, Vector pAllDueDates, String[] pColNames){
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            // TODO Auto-generated method stub
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        public void setValueAt(Object oValue, int iRow, int iCol) {
            Vector v = (Vector)vAllDueDates.elementAt(iRow);
            v.setElementAt(oValue,iCol);
            fireTableCellUpdated(iRow,iCol);
        public boolean isCellEditable(int iRow, int iCol) {
            if(getValueAt(iRow,iCol)==null){
                return false;
            }else{
                return true;
        private class DueDateEditor extends CalendarComboBox implements TableCellEditor{
            //protected EventListenerList listenerList = new EventListenerList();
            //protected ChangeEvent changeEvent = new ChangeEvent(this);
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                //listenerList.remove(CellEditorListener.class, l);
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                //Just return the input panel and not the panel that the calendar comboBox is on
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              public Object getCellEditorValue(){
                  return this.getDate();
              public boolean isCellEditable(EventObject evt) {
                //if (evt instanceof MouseEvent) {
                  //  return ((MouseEvent)evt).getClickCount() >= 2;
                return true;
              public boolean shouldSelectCell(EventObject anEvent){
                  return false;
              public boolean stopCellEditing(){
                  //this.setDate();
                  return true;
              public void cancelCellEditing(){
              public void addCellEditorListener(CellEditorListener l){
                  //listenerList.add(CellEditorListener.class, l);
              /*protected void fireEditingStopped() {
                  CellEditorListener listener;
                  Object[] listeners = listenerList.getListenerList();
                   for (int i = 0; i < listeners.length; i++) {
                         if (listeners[i] == CellEditorListener.class) {
                                listener = (CellEditorListener) listeners[i + 1];
                                listener.editingStopped(changeEvent);
        }Sorry the classes are quite basic, I'm not very familiar with custom cell editors, I have normally used default ones like combobox etc.
    Regards
    Alan

    To get better help sooner, post a SSCCE that clearly demonstrates your problem.
    To post code, use the code tags -- [code]Your Code[/code]will display asYour CodeOr use the code button above the editing area and paste your code between the {code}{code} tags it generates.
    luck, db

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