Question

我是Java和Swing的新手，我正在尝试创建一个JTable，我想在其中实现一个撤销选项。是否有可能将表模型存储在操作的某个部分，之后当我按下撤销按钮或其他内容时，我可以设置保存的表模型，使其像撤消一样执行。

由于

Answer 1

您可以尝试使用此代码。这取决于您将在以下链接中找到的TableCellListener代码： http://tips4java.wordpress.com/2009/06/07/table-cell-listener/

public class MyMain extends JFrame {
    private static final long serialVersionUID = 1L;
    DefaultTableModel model;
    JTable table;
    String col[] = { "Name", "Address", "Phone" };
    Action action = new AbstractAction()
    {
        private static final long serialVersionUID = 1L;
        public void actionPerformed(ActionEvent e)
        {
            TableCellListener tcl = (TableCellListener)e.getSource();
            System.out.println("Row   : " + tcl.getRow());
            System.out.println("Column: " + tcl.getColumn());
            System.out.println("Old   : " + tcl.getOldValue());
            System.out.println("New   : " + tcl.getNewValue());
        }
    };
    public static void main(String[] args) throws IOException {
        new MyMain().start();
    }
    public void start() {
        model = new DefaultTableModel(col, 50);
        table = new JTable(model) {
            private static final long serialVersionUID = 1L;
            @Override
            public boolean isCellEditable(int arg0, int arg1) {
                return true;
            }
        };
        JScrollPane pane = new JScrollPane(table);
        TableCellListener tcl = new TableCellListener(table, action);
        add(pane);
        setVisible(true);
        setSize(500, 400);
        setLayout(new FlowLayout());
        setDefaultCloseOperation(EXIT_ON_CLOSE);
    }
}

在Jtable中撤消选项

1 个答案: