Swing中使用JTable右键菜单及可编辑数据状态

时间:2016-10-14 16:52 来源:未知作者:机器AI 点击:次

Swing中使用JTable右键菜单及可编辑数据状态
在表格上显示右键菜单是使用率非常高的。这些代码非常实用，可以给我们很多启示。

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.DefaultCellEditor;
import javax.swing.JFrame;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class TBTest {
public static void main(String[] args) {
      JFrame frame = new JFrame();
      frame.setSize(400,300);
      String[][] data = new String[][]{{"1", "2", "3"}, {"4", "5", "6"}, {"7", "8", "9"}, {"10", "11", "12"}};
      String[] names = new String[]{"数值1", "数值2", "数值3"};
      final JTable table = new JTable(data, names);

      DefaultCellEditor cellEdit = new DefaultCellEditor(new JTextField());
      cellEdit.setClickCountToStart(2);//双击后使选择的格子可编辑
      table.addMouseListener(new MouseAdapter() {
         public void mousePressed(MouseEvent me) {
            if (SwingUtilities.isRightMouseButton(me)) {
               final int row = table.rowAtPoint(me.getPoint());
                  System.out.println("row:"+row);
                  if(row!=-1){
                  final int column = table.columnAtPoint(me.getPoint());

                  final JPopupMenu popup = new JPopupMenu();
               JMenuItem select = new JMenuItem("选择");

               select.addActionListener(new ActionListener() {
                  public void actionPerformed(ActionEvent e) {
                  System.out.println("选择");
                  table.setRowSelectionInterval(row, row); //高亮选择指定的行
                  }
               });
               popup.add(select);
               popup.add(new JSeparator());
               JMenuItem edit = new JMenuItem("编辑");
               popup.add(edit);
               edit.addActionListener(new ActionListener() {
                  public void actionPerformed(ActionEvent e) {
                  System.out.println("编辑");
                  table.clearSelection(); //清除高亮选择状态
                  table.editCellAt(row, column); //设置某列为可编辑
                  }
               });
               JMenuItem calcel = new JMenuItem("取消");
               calcel.addActionListener(new ActionListener() {
                  public void actionPerformed(ActionEvent e) {
                  System.out.println("取消");
                  popup.setVisible(false);
                  }
               });
               popup.add(new JSeparator());
               popup.add(calcel);
               popup.show(me.getComponent(), me.getX(), me.getY());
                  }
            }
         }
      });
      JScrollPane scrollPane = new JScrollPane(table);
      frame.setTitle("JTable右键测试");
      frame.add(scrollPane);
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
}
} (责任编辑：机器AI)

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Swing中使用JTable右键菜单及可编辑数据状态

时间:2016-10-14 16:52 来源:未知 作者:机器AI 点击:次

时间:2016-10-14 16:52 来源:未知作者:机器AI 点击:次