JDK自带的有这样的例子。路径如:C:\j2sdk1.4.1\demo\jfc\SwingSet2
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JComboBox cmbtbl.getColumnModel().getColumn(1).setCellEditor(
new DefaultCellEditor(cmb));
if(row == 0 && column == 0)
return new JComboBox();
package jp.gr.java_conf.tame.swing.table;import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;/**
* each row TableCellEditor
*
* @version 1.1 09/09/99
* @author Nobuo Tamemasa
*/public class EachRowEditor implements TableCellEditor {
protected Hashtable editors;
protected TableCellEditor editor, defaultEditor;
JTable table; /**
* Constructs a EachRowEditor.
* create default editor
*
* @see TableCellEditor
* @see DefaultCellEditor
*/
public EachRowEditor(JTable table) {
this.table = table;
editors = new Hashtable();
defaultEditor = new DefaultCellEditor(new JTextField());
}
/**
* @param row table row
* @param editor table cell editor
*/
public void setEditorAt(int row, TableCellEditor editor) {
editors.put(new Integer(row),editor);
}
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
//editor = (TableCellEditor)editors.get(new Integer(row));
//if (editor == null) {
// editor = defaultEditor;
//}
return editor.getTableCellEditorComponent(table,
value, isSelected, row, column);
} public Object getCellEditorValue() {
return editor.getCellEditorValue();
}
public boolean stopCellEditing() {
return editor.stopCellEditing();
}
public void cancelCellEditing() {
editor.cancelCellEditing();
}
public boolean isCellEditable(EventObject anEvent) {
selectEditor((MouseEvent)anEvent);
return editor.isCellEditable(anEvent);
}
public void addCellEditorListener(CellEditorListener l) {
editor.addCellEditorListener(l);
}
public void removeCellEditorListener(CellEditorListener l) {
editor.removeCellEditorListener(l);
}
public boolean shouldSelectCell(EventObject anEvent) {
selectEditor((MouseEvent)anEvent);
return editor.shouldSelectCell(anEvent);
}
protected void selectEditor(MouseEvent e) {
int row;
if (e == null) {
row = table.getSelectionModel().getAnchorSelectionIndex();
} else {
row = table.rowAtPoint(e.getPoint());
}
editor = (TableCellEditor)editors.get(new Integer(row));
if (editor == null) {
editor = defaultEditor;
}
}
}
/* (swing1.1.1) */
//package jp.gr.java_conf.tame.swing.examples;import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import jp.gr.java_conf.tame.swing.table.*;/**
* @version 1.1 09/09/99
*/
public class EachRowEditorExample extends JFrame {
public EachRowEditorExample(){
super("EachRow Editor Example");
DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(
new Object[][]{{"Name" ,"MyName"},
{"Gender","Male"}},
new Object[]{"Column1","Column2"}); JTable table = new JTable(dm);
JComboBox comboBox = new JComboBox();
comboBox.addItem("Male");
comboBox.addItem("Female");
comboBox.addComponentListener(new ComponentAdapter() {
public void componentShown(ComponentEvent e) {
final JComponent c = (JComponent)e.getSource();
SwingUtilities.invokeLater(new Runnable() {
public void run () {
c.requestFocus();
System.out.println(c);
if (c instanceof JComboBox) {
System.out.println("a");
}
}
});
}
}); EachRowEditor rowEditor = new EachRowEditor(table);
rowEditor.setEditorAt(1, new DefaultCellEditor(comboBox));
table.getColumn("Column2").setCellEditor(rowEditor); JScrollPane scroll = new JScrollPane(table);
getContentPane().add( scroll , BorderLayout.CENTER);
setSize( 400, 100 );
setVisible(true);
} public static void main(String[] args) {
EachRowEditorExample frame = new EachRowEditorExample();
frame.addWindowListener( new WindowAdapter() {
public void windowClosing( WindowEvent e ) {
System.exit(0);
}
});
}
}