JOptionPane灰色输出一键式 [英] JOptionPane Grey Out One Button

问题描述

我需要使用JOptionPane为用户提供两个选项.根据先前的操作，尽管可能需要禁用其中一个按钮.

I need to use a JOptionPane to give the user two options. Depending on previous actions though one of the buttons may need to be disabled.

JOptionPane是否可以设置禁用或启用任何一个按钮?

Is it possible with JOptionPane to have the ability to set either of the buttons to be disabled or enabled?

我该怎么做?

推荐答案

使用JButton很容易:

It's easy if you use JButtons:

    public class Test
{
    public static void main(String[] args)
    {
        final JButton option1 = new JButton("option1");
        final JButton option2 = new JButton("option2");
        option1.setEnabled(false);
        // option2.setEnabled(false);
        option1.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent arg0)
            {
                // code here
            }
        });
        option2.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
                // code here
            }
        });
        JOptionPane.showOptionDialog(null, "hello", "The Title", JOptionPane.NO_OPTION, JOptionPane.PLAIN_MESSAGE, null, new JButton[]
        { option1, option2 }, option1);
    }
}

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