请问，怎么用DefaultCellEditor类来给JTABLE里面的单元格添加jcombobox

Question

如题：最好给代码和注释。我要的是在同一列，不同行可以添加不同的JCOMBOBOX控件，当然了，你们也可以告诉我在同列不同行怎么添加不同的控件，

Answer 1

用Render. 下面一个例子虽然不是combobox, 但是checkbox,,, 其实原理一样:private class CheckBoxRenderer extends DefaultTableCellRenderer
    {
        public CheckBoxRenderer()
        {
            setNameForAutoTest();
        }
        
        @Override
        public Component getTableCellRendererComponent(JTable table,
                Object value, boolean isSelected, boolean hasFocus, int row,
                int column)
        {
            Component res = super.getTableCellRendererComponent(table,
                    value,
                    isSelected,
                    hasFocus,
                    row,
                    column);
            
            //当前组件为JLabel类型,才可设置渲染器
            if (res instanceof JLabel)
            {
                //当前鼠标选中此行               
                if (isSelected)
                {
                    _checkBox.setSelected(true);
                    //                                    setForeground(table.getSelectionForeground());
                    //                                    setBackground(table.getSelectionBackground());
                }                
                if (_showCheckBox && (Boolean) value)
                {
                    _checkBox.setSelected(true);
                    //                                    setForeground(table.getSelectionForeground());
                    //                                    setBackground(table.getSelectionBackground());
                }
                //未选中的情况
                else
                {
                    _checkBox.setSelected(false);
                    //                                    _checkBox.setBackground(UIManager.getColor("CheckBox.background"));
                }
                /* 设置表格的灰化状态 */
                if (!IsmTable.this.isEnabled())
                {
                    _checkBox.setOpaque(true);
                    _checkBox.setEnabled(false);
                    //                                    setBackground(disablebackground);
                }
                else
                {
                    _checkBox.setOpaque(false);
                    _checkBox.setEnabled(true);
                    //                                    setBackground(Color.WHITE);
                }                _checkBox.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
                return _checkBox;
            }
            return res;
        }
        
        //表格灰化背景色
        //private Color disablebackground = new Color(238, 238, 238);
        
        //复选框
        private JCheckBox _checkBox = new JCheckBox();
    }

Answer 2

这问题说来，简单也可，复杂也可。
可以指定一列，甚至一个单元格；
可以根据取得的数据类型绑定编辑器而且JComboBox类型的编辑器又在swing中有默认的提供，这个很简单。
虽说两者本质并无太大不同，但是既然涉及到了编辑，自然牵涉到保存数据的类型问题。你要哪种？

Answer 3

http://topic.csdn.net/u/20091203/11/2f17c270-23fd-4837-9b28-f78141592f88.htmllz可以参考链接里的实例