Mega Code Archive
Using a JComboBox in a Cell in a JTable Component
<![CDATA[
import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
public class Main {
public static void main(String[] argv) throws Exception {
JTable table = new JTable();
DefaultTableModel model = (DefaultTableModel) table.getModel();
model.addColumn("A", new Object[] { "item1" });
model.addColumn("B", new Object[] { "item2" });
String[] values = new String[] { "1", "2", "3" };
TableColumn col = table.getColumnModel().getColumn(0);
col.setCellEditor(new MyComboBoxEditor(values));
col.setCellRenderer(new MyComboBoxRenderer(values));
}
}
class MyComboBoxRenderer extends JComboBox implements TableCellRenderer {
public MyComboBoxRenderer(String[] items) {
super(items);
}
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
super.setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
}
setSelectedItem(value);
return this;
}
}
class MyComboBoxEditor extends DefaultCellEditor {
public MyComboBoxEditor(String[] items) {
super(new JComboBox(items));
}
}
]]>