一种方法是重写getCellEditor()方法以返回适当的编辑器。这里是一个例子,让你开始:
import java.awt.*;
import java.awt.event.*;
import java.util.List;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.table.*;
public class TableComboBoxByRow extends JFrame
{
List<TableCellEditor> editors = new ArrayList<TableCellEditor>(3);
public TableComboBoxByRow()
{
// Create the editors to be used for each row
String[] items1 = { "Red", "Blue", "Green" };
JComboBox comboBox1 = new JComboBox(items1);
DefaultCellEditor dce1 = new DefaultCellEditor(comboBox1);
editors.add(dce1);
String[] items2 = { "Circle", "Square", "Triangle" };
JComboBox comboBox2 = new JComboBox(items2);
DefaultCellEditor dce2 = new DefaultCellEditor(comboBox2);
editors.add(dce2);
String[] items3 = { "Apple", "Orange", "Banana" };
JComboBox comboBox3 = new JComboBox(items3);
DefaultCellEditor dce3 = new DefaultCellEditor(comboBox3);
editors.add(dce3);
// Create the table with default data
Object[][] data =
{
{"Color", "Red"},
{"Shape", "Square"},
{"Fruit", "Banana"},
{"Plain", "Text"}
};
String[] columnNames = {"Type","Value"};
DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model)
{
// Determine editor to be used by row
public TableCellEditor getCellEditor(int row, int column)
{
int modelColumn = convertColumnIndexToModel(column);
if (modelColumn == 1 && row < 3)
return editors.get(row);
else
return super.getCellEditor(row, column);
}
};
System.out.println(table.getCellEditor());
JScrollPane scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane);
}
public static void main(String[] args)
{
TableComboBoxByRow frame = new TableComboBoxByRow();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
}
编辑:代码更新为使用垃圾建议。
谢谢 我一直在分析所有这些例子中你张贴和其他人,在互联网上..但他们不适合。 我只需要在JTable的特定位置创建一个JComboBox,比如data [1] [5]。 该框已经创建好了,我只需要将它链接到那个地方。 在这些例子中,我看到他们获得了一个完整的列,并从中创建了一个JComboBox,并且我看不到他们如何引用表中的特定位置,例如row-2,column-5等。 。 谢谢 – 2010-07-15 14:26:03