Disable rows in JTable

Does anyone know how to disable a row in a JTable? I essentially want a row to be grayed out and I want to be able to dynamically change which row(s) are disabled.

You'll need a custom TableCellRenderer to display the row
as grayed out. You may need a custom ListSelectionListener
if you don't want the row to be selectable. You may need a custom
TableModel to override isCellEditable() to stop the user from
editing those cells.

Similar Messages

Next row in JTable (skip disabled rows)

When I press the down button on my keyboard how can I move to the next available row. It should skip all disabled rows.
My subclass of JTable looks like this:
public void changeSelection(int rowIndex, int columnIndex, boolean toggle, boolean extend) {
if (list[rowIndex].isEnabled()) {
super.changeSelection(rowIndex, columnIndex, toggle, extend);
All the disabled rows is not selectable. Right now it just stop when the next row is disabled.

Well, I think the right way to it would be something like..
public void changeSelection(int rowIndex, int columnIndex, boolean toggle, boolean extend)
     // Get to the right row..
     while (!list[rowIndex].isEnabled())
          ++rowIndex;
          rowIndex %= list.length;
     // Change selection to the row found.
     super.changeSelection(rowIndex, columnIndex, toggle, extend);
The last one is good asuming there must be at least one enabled row, otherwise you should handle this case also...

Delete Multiple Rows of JTable by selecting JCheckboxes

Hi,
I want delete rows of JTable that i select through JCheckbox on clicking on JButton. The code that i am using is deleting one row at a time. I want to delete multiple rows at a time on clicking on Button.
This is the code i m using
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableTest extends JFrame implements ActionListener
     JButton btnAdd;
     BorderLayout layout;
     DefaultTableModel model;
     JTable table;JButton btexcluir;
     public static void main(String[] args)
          TableTest app = new TableTest();
          app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     public TableTest()
          super("Table Example");
          btnAdd = new JButton("Add");
          btnAdd.addActionListener(this);
          model = new DefaultTableModel()
               public Class getColumnClass(int col)
                    switch (col)
                         case 1 :
                              return Boolean.class;
                         default :
                              return Object.class;
          table = new JTable(model);
          table.setPreferredSize(new Dimension(250,200));
          // Create a couple of columns
          model.addColumn("Col1");
          model.addColumn("Col2");
          JCheckBox cbox = new JCheckBox();
          // Append a row
          JPanel painel = new JPanel();
          model.addRow(new Object[] { "v1",new Boolean(false)});
          model.addRow(new Object[] { "v3", new Boolean(false)});
          JScrollPane scrollPane = new JScrollPane(table);
          scrollPane.createVerticalScrollBar();
          btexcluir= new JButton("Excluir");
          btexcluir.addActionListener(this);
          painel.add(btexcluir);
          painel.add(btnAdd);
          getContentPane().add(scrollPane, BorderLayout.NORTH);
          getContentPane().add(painel, BorderLayout.SOUTH);
          setSize(600, 600);
          setVisible(true);
     public void actionPerformed(ActionEvent e)     {
       if (e.getSource() == btnAdd)
          model.addRow(new Object[] { "Karl", new Boolean(false)});
       if (e.getSource()==btexcluir){
            for (int i=0; i <=model.getRowCount(); i++){
                 if (model.getValueAt(i,1)==Boolean.FALSE)
                      JOptionPane.showMessageDialog(null, "No lines to remove!!");
                 else if(model.getValueAt(i,1)==Boolean.TRUE)
                      model.removeRow(i);
}Please reply me with code help.
Thanks
Nitin

Hi,
Thanks for ur support. My that problem is solved now. One more problem now . Initially i want that delete button disabled. When i select any checkbox that button should get enabled. how can i do that ?
Thanks
Nitin

How to set background color of row in JTable

Hi,I want to set different background color to rows in JTable according to some value in the this row.
eg.
no name isGood
1 aaa yes (this row's background color is red)
2 bbb no (this row's background color is blue)
3 ccc yes (this row's background color is red)
4 ddd yes (this row's background color is red)
5 eee no (this row's background color is blue)
thanks

thanks!*_*

How to set background color in row of JTable ?

i am new in java please tell me about How to set background color in row of JTable ? please example code. Thnak you.

Here is an example: http://www.javaworld.com/javaworld/javaqa/2001-09/03-qa-0928-jtable.html
For more info on how to use tables read the swing tutorial: http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
ICE

How to hide row in JTable?

Hi all,
How to hide some specific rows in JTable for user view filtering purpose?
Thanks

Try to use the Table Model.
The "getValueAt" Methode decide what to Display.
So a simple "if" command can hide the complete row - or a single Statement.
public Object getValueAt(int row, int col) {
ArrayList al = new ArrayList();
StueliTeil tabellenzeile = (StueliTeil) getDaten().get(row);
switch (col) {
case 0 :
return tabellenzeile.getUmfang();
case 1 :
return tabellenzeile.getTakt();
...

Inserting row in JTable (runtime)

i need to inserting row in JTable in runtime so tell me what it do

dear farhanaj ,
try this code:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;
/* <applet code=tableadd.class width=200 height=200>
</applet>
public class tableadd extends JApplet implements ActionListener
Object[] data = new Object[5];
DefaultTableModel defaulttablemodel = new DefaultTableModel();
JTable jtable=new JTable(defaulttablemodel);
JPanel jpanel= new JPanel();
private     JPanel          topPanel,jpPanel;
public     JTable          table;
JButton jbutton1 = new JButton("create new row");
JButton jbutton2 = new JButton("create new col");
//JButton jbutton1=new Jbutton("r"),jbutton2=new Jbutton("c");
public tableadd()
for(int column=0 ; column<5 ; column++)
defaulttablemodel.addColumn("column" + column);
for(int row=0 ; row<5;row++)
for(int column=0 ;column<5;column++)
data[column]="cell" row "," + column;
defaulttablemodel.addRow(data);
//getContentPane().add(new JScrollPane(jtable) ,BorderLayout.CENTER);
//getContentPane().add(new JPanel() ,BorderLayout.SOUTH);
int v=ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int h=ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
JScrollPane jsp = new JScrollPane(jtable , v, h);
getContentPane().add(jsp, BorderLayout.CENTER);
topPanel = new JPanel();
jpPanel=new JPanel();
topPanel.setLayout( new BorderLayout() );
getContentPane().add(topPanel,BorderLayout.NORTH);
getContentPane().add(jpPanel,BorderLayout.SOUTH);
jpPanel.add(jbutton1);
jpPanel.add(jbutton2);
jbutton1.addActionListener(this);
jbutton2.addActionListener(this);
public void actionPerformed(ActionEvent e)
if (e.getSource() == jbutton1)
int numberrows = defaulttablemodel.getRowCount();
int numbercolumns=defaulttablemodel.getColumnCount();
Object[] data = new Object[numbercolumns];
for(int column=0 ; column<numbercolumns;column++)
data[column]="cell" numberrows "," +column;
defaulttablemodel.addRow(data);
else
if (e.getSource() ==jbutton2)
int numberrows=defaulttablemodel.getRowCount();
int numbercolumns=defaulttablemodel.getColumnCount();
defaulttablemodel.addColumn("column" + numbercolumns);
for(int row=0; row<numberrows ; row++)
defaulttablemodel.setValueAt("cell" row "," +numbercolumns ,row , numbercolumns);
               System.out.println(row);
//jtable.sizeColumnsToFit(0);

How to set different font for a particular row in jtables?

How to set different font size and font type for a particular row in jtable?

More than enough sample code here:
[http://java.sun.com/docs/books/tutorial/uiswing/components/table.html]
db

How to select a row in Jtable at runtime

how to select a row in Jtable at runtime.

use
setRowSelectionInterval(int fromRowIndex, int toRowIndex);example if your table has 10 rows then u want to select the rows from 4 to 8 then use
setRowSelectionInterval(3, 7);if you want to select just one row for example 5 then use
setRowSelectionInterval(5, 5);

How to remove a row from JTable

Hi!
I'm used to remove rows from JTables getting the model and doing a removeRow(num) like this:
((DefaultTableModel)jTable1.getModel()).removeRow(0);
But with ADF and JDeveloper the model says it's a JUTableBinding.JUTableModel but its not accessible.
How to remove a row in Jdeveloper 10.1.3.4.0?

Or maybe is just better to refresh data in the jTable but I do not know either like doing it.

How to apply different colors to specific rows in JTable

hi,
Anybody could tell me the way of colorising the rows in jtable.. I want to apply different colors to diff rows..
If i get a piece of code that could help me a lot..
thanks in advance,
Sapna

you'll find the answer at http://www2.gol.com/users/tame/swing/examples/SwingExamples.html

How to Disable Row Detail in Sales Module

Dear Experts,
how to disable row detail option in sales module. how it is posible. we are using SAP Business One 2007. PL42
Thanx

AOA Rahil,
I have just solved this problem, I was also facing the same one
I am using B1DE, I have handled this on before menu click when open the form
<B1Listener(BoEventTypes.et_MENU_CLICK, true)> _
        Public Overridable Function OnBeforeMenuClick(ByVal pVal As MenuEvent) As Boolean
            'GENERATED CODE
            Me.LoadForm()
1***            Dim Form As Form = B1Connections.theAppl.Forms.ActiveForm
   2 ***        Form.Settings.EnableRowFormat = False
            Return false
        End Function
1--Capture the current form
2--Disable Row Detail Form
It worked for me
Best Regards,
Umer Nasim Mirza
03004003633

Delete row in JTable

Hello I am new To JAVA SWING
I have 2 questions related to JTable
1) How do i remove selected row in JTable ...for instance, I click on the row to delete (It is selected) , later I press the delete button, and then row is removed .... any hints ?
2) If I would like to save the rows in a JTable into a database , .... How can iterate through the rows in the JTable..each row .... the rows are saved in a List object...and a List Object is what I pass as a parameter in a class method in order to be saved into Database.
Thanks,
deibys

1) use the removeRow(...) method of the DefaultTableModel
20 use table.getModel().getValueAt(...) to get the data from the model and create your list Object.

Problem in adding/deleting rows in JTable

I am trying to add /remove rows from JTable whose first column is JButton and others are JComboBox's.If no rows are selected,new row is added at the end.If user selects some row & then presses insert button,new row is added below it.Rows can only be deleted if user has made some selection.Kindly help me,where i am making mistake.If any function is to be used.My code is as follows....
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
public class JButtonTableExample extends JFrame implements ActionListener{
JComboBox mComboLHSType = new JComboBox();
JComboBox mComboRHSType = new JComboBox();
JLabel mLabelLHSType = new JLabel("LHS Type");
JLabel mLabelRHSType = new JLabel("RHS Type");
JButton mButtonDelete = new JButton("Delete");
JButton mButtonInsert = new JButton("Insert");
JPanel mPanelButton = new JPanel();
JPanel mPanelScroll = new JPanel();
JPanel mPanelCombo = new JPanel();
DefaultTableModel dm ;
JTable table;
int currentRow = -1;
static int mSelectedRow = -1;
public JButtonTableExample()
super( "JButtonTable Example" );
makeForm();
setSize( 410, 222 );
setVisible(true);
private void makeForm()
this.getContentPane().setLayout(null);
mPanelCombo.setLayout(null);
mPanelCombo.setBorder(new LineBorder(Color.red));
mPanelCombo.setBounds(new Rectangle(1,1,400,30));
mLabelLHSType.setBounds(new Rectangle(26,5,71,22));
mComboLHSType.setBounds(new Rectangle(83,5,100,22));
mLabelRHSType.setBounds(new Rectangle(232,5,71,22));
mComboRHSType.setBounds(new Rectangle(292,5,100,22));
mPanelCombo.add(mLabelLHSType,null);
mPanelCombo.add(mComboLHSType,null);
mPanelCombo.add(mLabelRHSType,null);
mPanelCombo.add(mComboRHSType,null);
mPanelScroll.setLayout(null);
mPanelScroll.setBorder(new LineBorder(Color.blue));
mPanelScroll.setBounds(new Rectangle(1,28,400,135));
mPanelButton.setLayout(null);
mPanelButton.setBorder(new LineBorder(Color.green));
mPanelButton.setBounds(new Rectangle(1,165,400,30));
mButtonInsert.setBounds(new Rectangle(120,5,71,22));
mButtonDelete.setBounds(new Rectangle(202,5,71,22));
mButtonDelete.addActionListener(this);
mButtonInsert.addActionListener(this);
mPanelButton.add(mButtonDelete,null);
mPanelButton.add(mButtonInsert,null);
dm = new DefaultTableModel();
//dm.setDataVector(null,
//new Object[]{"Button","Join","LHS","Operator","RHS"});
dm.setDataVector(new Object[][]{{"","","","",""}},
new Object[]{"","Join","LHS","Operator","RHS"});
table = new JTable(dm);
table.getTableHeader().setReorderingAllowed(false);
table.setRowHeight(25);
int columnWidth[] = {20,45,95,95,95};
TableColumnModel modelCol = table.getColumnModel();
for (int i=0;i<5;i++)
modelCol.getColumn(i).setPreferredWidth(columnWidth);
//modelCol.getColumn(0).setCellRenderer(new ButtonRenderer());
//modelCol.getColumn(0).setCellEditor(new ButtonEditor(new JCheckBox()));
modelCol.getColumn(0).setCellRenderer(new ButtonCR());
modelCol.getColumn(0).setCellEditor(new ButtonCE(new JCheckBox()));
modelCol.getColumn(0).setResizable(false);
setUpJoinColumn(modelCol.getColumn(1));
setUpLHSColumn(modelCol.getColumn(2));
setUpOperColumn(modelCol.getColumn(3));
setUpRHSColumn(modelCol.getColumn(4));
JScrollPane scroll = new JScrollPane(table);
scroll.setBounds(new Rectangle(1,1,400,133));
mPanelScroll.add(scroll,null);
this.getContentPane().add(mPanelCombo,null);
this.getContentPane().add(mPanelScroll,null);
this.getContentPane().add(mPanelButton,null);
}//end of makeForm()
public void actionPerformed(ActionEvent ae)
if (ae.getSource() == mButtonInsert)
//int currentRow = table.getSelectedRow();
currentRow = ButtonCE.selectedRow;
System.out.println("Before Insert CURRENT ROW"+currentRow);
if(currentRow == -1)
int rowCount = dm.getRowCount();
//mSelectedRow = rowCount-1;
//table.clearSelection();
dm.insertRow(rowCount,new Object[]{"","","","",""});
currentRow = -1;
ButtonCE.selectedRow = -1;
else
table.clearSelection();
dm.insertRow(currentRow+1,new Object[]{"","","","",""});
currentRow = -1;
ButtonCE.selectedRow = -1;
//System.out.println("After INSERT CURRENT ROW"+currentRow);
if(ae.getSource() == mButtonDelete)
//int currentRow = table.getSelectedRow();
currentRow = ButtonCE.selectedRow;
System.out.println("Before DELETE CURRENT ROW"+currentRow);
if(currentRow != -1)
dm.removeRow(currentRow);
table.clearSelection();
currentRow = -1;
ButtonCE.selectedRow = -1;
//System.out.println("Selected Row"+mSelectedRow);
else
JOptionPane.showMessageDialog(null, "Select row first", "alert", JOptionPane.ERROR_MESSAGE);
//System.out.println("DELETE CURRENT ROW"+currentRow);
public void setUpJoinColumn(TableColumn joinColumn)
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("AND");
comboBox.addItem("OR");
comboBox.addItem("NOT");
joinColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
joinColumn.setCellRenderer(renderer);
//Set up tool tip for the sport column header.
TableCellRenderer headerRenderer = joinColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the sport to see a list of choices");
public void setUpLHSColumn(TableColumn LHSColumn)
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("Participant1");
comboBox.addItem("Participant2");
comboBox.addItem("Variable1");
LHSColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
LHSColumn.setCellRenderer(renderer);
//Set up tool tip for the sport column header.
TableCellRenderer headerRenderer = LHSColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the sport to see a list of choices");
public void setUpOperColumn(TableColumn operColumn)
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("=");
comboBox.addItem("!=");
comboBox.addItem("Contains");
operColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
operColumn.setCellRenderer(renderer);
//Set up tool tip for the sport column header.
TableCellRenderer headerRenderer = operColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the sport to see a list of choices");
public void setUpRHSColumn(TableColumn rhsColumn)
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("Variable1");
comboBox.addItem("Constant1");
comboBox.addItem("Constant2");
rhsColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
rhsColumn.setCellRenderer(renderer);
//Set up tool tip for the sport column header.
TableCellRenderer headerRenderer = rhsColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the sport to see a list of choices");
public static void main(String[] args) {
JButtonTableExample frame = new JButtonTableExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
//Button as a renderer for the table cells
class ButtonCR implements TableCellRenderer
JButton btnSelect;
public ButtonCR()
btnSelect = new JButton();
btnSelect.setMargin(new Insets(0,0,0,0));
public Component getTableCellRendererComponent(JTable table,Object value,boolean isSelected,boolean hasFocus,int row,int column)
if (column != 0) return null; //meany !!!
//System.out.println("Inside renderer########################Selected row");
//btnSelect.setText(value.toString());
//btnSelect.setIcon(new ImageIcon("capsigma.gif"));
return btnSelect;
}//end fo ButtonCR
//Default Editor for table
class ButtonCE extends DefaultCellEditor implements ActionListener
JButton btnSelect;
JTable table;
//Object val;
static int selectedRow = -1;
public ButtonCE(JCheckBox whoCares)
super(whoCares);
//this.row = row;
btnSelect = new JButton();
btnSelect.setMargin(new Insets(0,0,0,0));
btnSelect.addActionListener(this);
setClickCountToStart(1);
public Component getTableCellEditorComponent(JTable table,Object value,boolean isSelected,int row,int column)
if (column != 0) return null; //meany !!!
this.selectedRow = row;
this.table = table;
table.clearSelection();
System.out.println("Inside getTableCellEditorComponent");
return btnSelect;
//public Object getCellEditorValue()
//return val;
public void actionPerformed(ActionEvent e)
// Your Code Here...
System.out.println("Inside actionPerformed");
System.out.println("Action performed Row selected "+selectedRow);
btnSelect.setIcon(new ImageIcon("capsigma.gif"));
}//end of ButtonCE

Hi,
All the thing you have to do is to return a boolean for the column. JTable will use a checkbox (as default) to show boolean values.

Hide row in Jtable

Please I need help
How can I hide a row in Jtable.
For example if you push a button hide first row.
Thanks

One simple way you can do is:
just remove this row but keep it somewhere so that you may add it back when you want later. :-)

Disable rows in JTable

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