How to remove a cell renderer

I have been looking through the apis and search but to no sucess. I have tried a few different remove methods but none seem to be working. Does anyone know how to remove a cell renderer.

What do you mean "remove a cell renderer".
What component or class are you talking about? I'm only aware of renderers being used by Swing components. If thats the case then the question should be posted in the Swing forum.
What do you mean by remove? If you remove the renderer how would the cell be renderered. Do you mean that you want the cell to use the default cell renderer?
What component are you talking about? I'm aware of renderers for JTree, JTable, JList, JComboBox.
If I had to guess I would think you are talking about a JTable, so I would suggest simple setting the renderer to null for the particular column.
If that doesn't work then you can always use the getDefaultRenderer(...) method and then reset the column that way?
But you question is not very clear so Its a lot of guess work on my part.

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Take a look at :
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How to make JTree cell renderer respect layout?

Hi,
In the JTree tutorial, the first example TreeDemo shows a simple tree.
http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html
If you grab the frame and make it really thin, you get a horizontal scroll bar in the top pane.
How can I make it so that the tree cells just draw "..." at the end of the string if there is not enough space?
I know the tree cell renderer uses JLabel, but they never seem to show "...", which is one of the best features of a JLabel. Any help is greatly appreciated!

Hi,
I got it working, but I also discovered a Java bug that ruins all this effort!
Calculating the node's position & width:
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Example program:
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Bug found:
- There is a runnable example below. Just run it and after a couple seconds, move the split pane to the right.
- I use a timer to add a new node every 1 second. The new nodes get stuck being too small, and the original nodes don't have this problem.
// =====================================================
* Adaptation of TreeDemo to allow for tree nodes that show "..."
* when there is not enough space to display the whole label.
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTree;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeWillExpandListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.ExpandVetoException;
import javax.swing.tree.TreeCellRenderer;
import javax.swing.tree.TreeSelectionModel;
public class TreeDemo extends JPanel {
    private JTree tree;
    protected class EllipsesTreeCellRenderer implements TreeCellRenderer {
        Integer leftIndent = (Integer) UIManager.get("Tree.leftChildIndent");
        Integer rightIndent = (Integer) UIManager.get("Tree.rightChildIndent");
        int indent = leftIndent.intValue() + rightIndent.intValue();
        JLabel label = new JLabel();
        DefaultTreeCellRenderer r = new DefaultTreeCellRenderer();
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            if (selected) {
                label.setForeground(r.getTextSelectionColor());
                label.setBackground(r.getBackgroundSelectionColor());
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                label.setForeground(r.getTextNonSelectionColor());
                label.setBackground(r.getBackgroundNonSelectionColor());
            if (leaf) {
                label.setIcon(r.getLeafIcon());
            } else if (expanded) {
                label.setIcon(r.getOpenIcon());
            } else {
                label.setIcon(r.getClosedIcon());
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            DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;
            int level = node.getLevel();
            if (!tree.isRootVisible()) {
                --level;
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            // because the tree is not yet visible.
            int maxWidth = (int) tree.getVisibleRect().getWidth();
            if (maxWidth > 0) {
                if (rendererWidth > maxWidth) {
                    // figure out how much space "..." will consume.
                    label.setText(label.getText() + "...");
                    maxWidth = maxWidth
                            - (label.getPreferredSize().width - labelWidth);
                    label.setText(label.getText());
                    // chop off characters until "..." fits in the visible
                    // portion.
                    if (maxWidth > 0) {
                        while (rendererWidth > maxWidth
                                && label.getText().length() > 1) {
                            label.setText(label.getText().substring(0,
                                    label.getText().length() - 2));
                            rendererWidth = indentWidth
                                    + label.getPreferredSize().width;
                        label.setText(label.getText() + "...");
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        final DefaultMutableTreeNode top = new DefaultMutableTreeNode("");
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        tree = new JTree(top);
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        tree.setCellRenderer(new EllipsesTreeCellRenderer());
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        treeView.setMinimumSize(minimumSize);
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        //workaround for bug 4101306:
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        splitPane.setPreferredSize(new Dimension(500, 300));
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                DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
                DefaultMutableTreeNode child = new DefaultMutableTreeNode("");
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                for (int i = tree.getRowCount(); i >= 0; i--) {
                    tree.expandRow(i);
        timer.start();
    private void createNodes(DefaultMutableTreeNode top) {
        DefaultMutableTreeNode category = null;
        DefaultMutableTreeNode book = null;
        category = new DefaultMutableTreeNode("");
        top.add(category);
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
        category.add(new DefaultMutableTreeNode(""));
     * Create the GUI and show it. For thread safety, this method should be
     * invoked from the event-dispatching thread.
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        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
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            System.err.println("Couldn't use system look and feel.");
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        frame.setVisible(true);
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        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
}

How to remove table cell borders

Hi,
I’m using dreamweaver cs6.first i create a HTML page then i create a div tag (800w 900 h) & create a table inside of above div. i want to keep table border & make it to tickness, want to remove cell borders. I can’t find any options to remove the cell borders. Please any one can help me.
Thank you.

table.borderless {
border-width: 0px;
background-color: white;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 1.2em;
text-align: center;
text-transform: none;
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<table width="250" height="150" align="center" class="borderless">
<tr>
<th colspan="2" class="style1">Borderless table<br />
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</tr>
<tr>
<th class="borderless">cell 3 </th>
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How to remove an item renderer

Hi,
I am applying itemrenderer for in the columnseries of column
chart
cs.setStyle("itemRenderer",new
ClassFactory(CycleColorRenderer1));
At a particular condition i need to remove this
itemrenderer.Hw can i achive this?Any one pls respond.

"san00001" <[email protected]> wrote in
message
news:gh7r4m$88j$[email protected]..
> Hi,
> I am applying itemrenderer for in the columnseries of
column chart
>
> cs.setStyle("itemRenderer",new
ClassFactory(CycleColorRenderer1));
>
> At a particular condition i need to remove this
itemrenderer.Hw can i
> achive
> this?Any one pls respond.
Did you try
cs.setStyle("itemRenderer", null)

How to remove cells interection line in JTable

Hello
I am new to Java Programming
I am facing a problem which i did not know how to solve so i need help from experts of this forum
I have JTable of lets say 5 columns and from that i want to hide some columsn e.g i want to get only column 0(or ist column) and column 5(5th column) visible to me and not the inbetween columns(i.e 2,3,4) so i coded it like this:
for(int count=0;count< ConnectedDrivestable.getColumnCount();count++)
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I really dont know how to fix this problem i have searched on internet but unable to find the appropriate solution to it
Also as shown in my code i tried to work with removeColumn method which documentation says should remove the desired columns but i dont know why it is not functioing for my case the way i acpected am i doing something wrong or?
So urgent help from people here is required
Thanks in advance
Imran

Hello
Thanks for reply and thanks for help
Do please tell me that i am rendering cells of JTable with JLabel it is working fine but i want to span JLabel onto multicells in the same row
Second i want to change the size of JLabel so that if not needed JLabel did not cover the whole Cell
A bit of code which i am using to do cel rendering is attched for your kind considerations
ConnectedDrivestable.getColumnModel().getColumn(1).setCellRenderer((new DefaultTableCellRenderer ()
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                         boolean isSelected,
                         boolean hasFocus,
                         int row, int column)
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                         //Jlbl.setBorder(BorderFactory.createLineBorder(Color.BLACK));
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                         System.out.print("The answer is: "+ column+2);
                         ((JComponent)Jlbl).setMinimumSize(new Dimension(1,1));
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ConnectedDrivestable.getColumnModel().getColumn(2).setCellRenderer((new DefaultTableCellRenderer ()
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                         boolean isSelected,
                         boolean hasFocus,
                         int row, int column)
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                         (table, value, isSelected, hasFocus, row, column);
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                    else
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Also as in code snippet i am trying to set the border which works fine but what i want is that after spanning JLabel to multiple cells then i want border along this how to do this help in this regard too?might if i could span JLabel to diffrent columns might i able to set border aroung them too
I am putting under old forum topic this question as it is realted to my same problem so do please apologize me.
I do need urgent help in this regard so kind help is needed
Regards

How to remove the "0" from the sum cell when the other cells are empty?

Hello!
When I use the formula to sum the values from a few cells, there is a zero in the sum cell when the other cells are empty.
My question concerns how to remove the 0 from the sum cell when the cells that will be summed are empty.
Thank you!
/Johan Strömbeck

Hi,
Please try the Mr. Laurence's suggestion first. Then, we may try the other workarounds.
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George Zhao
TechNet Community Support

I purchased iphone4s recently and in phone section my cell number is showing unkmown and down there its showing vf es services why and how to remove ?

i purchase recently iphone 4s and its not showing my cell number and further down there its appearing SIM PIN AREA vf es services
could any one can help me how to remove this carrier vf es services ?
also i think due to this my cell's roaming data is on then only internet is working.....

Open contacts list, favourites should be at the top of list with stars by them, select the one you want to unfavourite, long hold and a pop up menu gives you the options to call-send message-Remove from favourites_send as contact card-Delete-or Mark. Chose the option to remove from favourites and they won't show on home screen any more !
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Click on the Table's icon in the Sheets list. Press delete.
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Hi Experts,
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When i run the report in the Bex Analyzer.
for that Formula column in the report there is some Cross Marks with Red Colour is displaying.
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Hi,
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How to remove special characters while typing data in edit cell in datagrid in flex4

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Removes any characters from
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provided criteria.
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Select @myString = replace(@myString,substring(@myString,patindex('%[^' + @validChars + ']%',@myString),1),'')
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import javax.swing.tree.*;
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               add(theSecondCheckBox);
               theThirdCheckBox = new JCheckBox("thirdField");
               add(theThirdCheckBox);
               theDelegate = new DefaultTreeCellRenderer();
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               if (!(userObject instanceof MyCell)) {
                    return theDelegate.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);
               setBackground(tree.getBackground());
               if (selected) {
                    setBorder(BorderFactory.createLineBorder(Color.BLUE, 2));
               } else {
                    setBorder(BorderFactory.createLineBorder(getBackground(), 2));
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               theThirdCheckBox.setSelected(cell.theThirdField);
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          public Component add(Component comp) {
               if (comp instanceof JComponent) {
                    ((JComponent)comp).setOpaque(false);
               return super.add(comp);
     public TestTree() {
          super(new BorderLayout());
          JTree tree = new JTree(createModel());
          tree.setShowsRootHandles(true);
          tree.setCellRenderer(new MyTreeCellRenderer());
          add(new JScrollPane(tree), BorderLayout.CENTER);
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          DefaultMutableTreeNode root = new DefaultMutableTreeNode(new MyCell("root", true, true, true));
          DefaultMutableTreeNode child1 = new DefaultMutableTreeNode(new MyCell("child1", false, true, false));
          DefaultMutableTreeNode child2 = new DefaultMutableTreeNode(new MyCell("child2", false, false, true));
          root.add(child1);
          root.add(child2);
          return new DefaultTreeModel(root);
     public static void main(String[] args) {
          final JFrame frame = new JFrame("Test");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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               public void run() {
                    frame.setSize(600, 400);
                    frame.show();
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JTree cell renderer: how to fill whole row?

hi,
i'm trying to make a tree cell renderer that renders at default height, but fills the horizontal width of the tree (e.g. with a JLabel with a custom background color). I'm working on the theory that in order to do this you need to change the preferred size of the component used to stamp the image at render time.
The problem is that the preferred width then needs to be set to a value that depends on the context of the particular node (e.g. a deeply nested child node will be further to the right than the root node).
I can't seem to find a method to say where the rendering starts though - does anyone know a way?
(also if not then would setting the width to some astronimcal value break anything?)
thanks,
asjf

Try this one, it will higlight the background and foreground colors of entire rows.
Oscar
     class TableRenderer
          extends DefaultTableCellRenderer
          implements ListCellRenderer
          private boolean focused = true;
          private JLabel renderer;
          public TableRenderer()
               super();
               renderer = new JLabel();
               renderer.setOpaque(true);
          public Component getListCellRendererComponent(
               JList list,
               Object value,
               int index,
               boolean isSelected,
               boolean cellHasFocus)
               return renderer;
          public Component getTableCellRendererComponent(
               JTable table,
               Object value,
               boolean isSelected,
               boolean hasFocus,
               int row,
               int column)
               renderer =
                    (JLabel) super.getTableCellRendererComponent(
                         table,
                         value,
                         isSelected,
                         hasFocus,
                         row,
                         column);
               /* Make the Labels border empty and indented */
               setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 0));
               /* This is used to create alternate row colors */
               Color bgColor = Color.white;
               if (row % 2 == 0)
                    bgColor = new Color(237, 243, 254);
               /* if the table has focus and the row is selected use these colors */
               if (table.hasFocus() && table.getSelectedRow() == row)
                    table.setSelectionForeground(Color.WHITE);
                    table.setSelectionBackground(new Color(101, 137, 178));
               /* if the table has not the focus but the row is selected use these colors */
               else if (
                    table.hasFocus() == false && table.getSelectedRow() == row)
                    table.setSelectionBackground(new Color(196, 196, 194));
               /* if not use the standard color */
               else
                    renderer.setBackground(bgColor);
                    table.setSelectionForeground(SystemColor.textText);
               if (value instanceof ColorData)
                    ColorData cvalue = (ColorData) value;
                    setForeground(cvalue.color);
                    setText(cvalue.data.toString());
                            /* Set the Labels value */
               setText(String.valueOf(value));
               return renderer;
     }

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