如何加入一个JComboBox到JTable中,在线等待? JDK自带的有这样的例子。路径如:C:\j2sdk1.4.1\demo\jfc\SwingSet2 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 例如要把第一列的单元格变为JComboBoxJTable tblJComboBox cmbtbl.getColumnModel().getColumn(1).setCellEditor( new DefaultCellEditor(cmb)); 实现TableCellRenderer接口。在它的getTableCellRendererComponent(JTable table,Object value,boolean isSelected,boolean hasFocus,int row,int column)方法中,加入:if(row == 0 && column == 0) return new JComboBox(); http://www2.gol.com/users/tame/swing/examples/SwingExamples.html/* (swing1.1.1) jfc#91 */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); } }); }} java Socket初级问题 一个简单的问题 Apache同步问题~~~~~~~~~~~~~交叉同步可以吗? 菜鸟问题,关于快捷键制作----F1,弹出帮助窗口。 如何在XP下安装使用J2SDK 哪为能提供详细的javaBean的学习资料? 如何处理一个目录下的所有文件? 在菜单项中怎么控制JFrame的关闭 java,C++与exe文件的问题? 如何获得机器上已经注册的所有ODBC数据源? 文件清空问题 如何打包成可在命令行利用java执行的jar文件?(关于manifest.mf)
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);
}
});
}
}