Cancel InputVerifier

Question

Hello,
I have a dialog with a JTextField on it. With an inputverifier class, I validate the content of the textfield. When the content is invalid I show a message ( with JOptionpane )
The problem is if I enter an invalid value in the text field and I click the cancel button I get the message that the input is wrong. Is there a way to prevent the validation through the Inputverifier class when cancel is pressed?
Thanks a lot

Answer 1

This is my code:
public class Test extends JDialog implements ActionListener
    JTextField txt = new JTextField(50);
    private JButton okBtn;
    private JButton cancelBtn;
    private static Test test;
    public static void main(String[] args)
        test = new Test(null, "test", false);
        test.pack();
        test.setVisible(true);
    public Test(Frame owner, String title, boolean modal)
        super(owner, title, modal);
        JPanel panel = new JPanel();
        panel.setLayout(new BorderLayout());
        txt.setInputVerifier(new PassVerifier());
        panel.add(txt, BorderLayout.NORTH);
        JPanel buttonPanel = new JPanel();
        okBtn = new JButton("Ok");
        okBtn.addActionListener(this);
        cancelBtn = new JButton("Cancel");
        cancelBtn.addActionListener(this);
        buttonPanel.setLayout(new FlowLayout());
        buttonPanel.add(cancelBtn);
        buttonPanel.add(okBtn);
        Container c = getContentPane();
        c.setLayout(new BorderLayout());
        c.add(panel, BorderLayout.NORTH);
        c.add(buttonPanel, BorderLayout.SOUTH);
        addWindowListener(new WindowAdapter()
            public void windowClosing(WindowEvent e)
                System.exit(0);
            public void windowClosed(WindowEvent e)
                System.exit(0);
    public void actionPerformed(ActionEvent e)
        if (e.getSource() == cancelBtn)
            System.exit(0);
    class PassVerifier extends InputVerifier
        public boolean verify(JComponent input)
            JTextField tf = (JTextField) input;
            String pass = tf.getText();
            if (pass.equals("pass"))
                return true;
            else
                if ( pass.length() > 0)
                    JOptionPane.showMessageDialog(null, "Error", "Error", JOptionPane.ERROR_MESSAGE);
                    return false;
                else
                    return true;
}