How can i insert JRadioButton to Cell in JTable

[Alon Goldfeld]

Hi,

I need to insert JRadioButton to Cell in JTable.
I can insert JCheckBox, JComboBox, JTextFeild to JTable,
but DefaultCellEditor hasn't editor for JRadioButton.

Anybody have ideas?

I need help, immidiately!!!

HEEEEEEEEEEEEEEEEEEEEEEEEEEEELP!!!

[Jeff Bosch]

I believe radio buttons don't work alone, they work in groups. Have you tried adding the radio buttons to a ButtonGroup, then adding the ButtonGroup to the cell using the add method?

[Sebastiaan Kortleven]

A ButtonGroup has no visual representation...

What do you wish to achieve by adding a radiobutton to the table?

[Geza Kovacs]

Originally posted by Alon Goldfeld:

I need to insert JRadioButton to Cell in JTable.
I can insert JCheckBox, JComboBox, JTextFeild to JTable,
but DefaultCellEditor hasn't editor for JRadioButton.

You have to use custom renderers and editors.

Quick solution:

Renderer

public class RadioButtonCellRenderer implements TableCellRenderer {
private final static Border NO_FOCUS_BORDER=BorderFactory.createEmptyBorder(1,1,1,1);
private JRadioButton _delegate;

public RadioButtonCellRenderer() {
_delegate=new JRadioButton();
}

public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
_delegate.setForeground(table.getSelectionForeground());
_delegate.setBackground(table.getSelectionBackground());
} else {
_delegate.setForeground(table.getForeground());
_delegate.setBackground(table.getBackground());
}
if (hasFocus) {
_delegate.setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
if (!isSelected && table.isCellEditable(row, column)) {
Color col;
col=UIManager.getColor("Table.focusCellForeground");
if (col != null) {
_delegate.setForeground(col);
}
col = UIManager.getColor("Table.focusCellBackground");
if (col != null) {
_delegate.setBackground(col);
}
}
} else {
_delegate.setBorder(NO_FOCUS_BORDER);
}
 
_delegate.setSelected(((Boolean)value).booleanValue());
return _delegate;
}
}

Editor

public class RadioButtonEditor extends AbstractCellEditor implements TableCellEditor {
private JRadioButton _delegate;

public RadioButtonEditor() {
_delegate=new JRadioButton();
_delegate.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
});
}

public Component getTableCellEditorComponent(JTable table, Object o, boolean isSelected, int row, int column) {
_delegate.setSelected(((Boolean)o).booleanValue());
return _delegate;

}
public Object getCellEditorValue() {
return Boolean.valueOf(_delegate.isSelected());
}
}

[Geza Kovacs]

And register the renderer/editor in the table:

table.setDefaultEditor(Boolean.class, new RadioButtonEditor());
table.setDefaultRenderer(Boolean.class, new RadioButtonCellRenderer());

[Alon Goldfeld]

Thank's, but how can i add this radiobuttons to the group.
Number of radiobuttons not constant.