CODEWITHSUNDEEP
javaswinguser-interfacejframejformattedtextfield
Axschech
Axschech

Reputation: 295

Trying to get a JFormattedtextfield to change... not working

I'm trying to set whatever is entered into "titleField" to appear in "artistField" by passing it through the string variable title

I type text into titleField, press enter, and nothing appears in artistField

can someone tell me what I'm doing wrong?

titleField.addPropertyChangeListener(new PropertyChangeListener() {
    public void propertyChange(PropertyChangeEvent e){

        Object source = e.getSource();
        if (source == titleField) {
            title = (String)titleField.getValue();
        }
    }
});
artistField = new JFormattedTextField();
artistField.setText(title);

Upvotes: 4

Views: 1994

Answers (3)

Jonas
Jonas

Reputation: 128925

Are you sure you need to use an JFormattedTextField or can you use a JTextField with a DocumentListener as camickr suggest? What Formatter are you using?

It is only the code in the propertyChange() method that is executed when the propery is changed. So you have to update artistField from that method. You should also update JFormattedTectFields using setValue() instead of setText() since setText() only updates the text and not the actual content.

Try with this PropertyChangeListener:

titleField.addPropertyChangeListener("value", new PropertyChangeListener() {
    public void propertyChange(PropertyChangeEvent e){

        Object source = e.getSource();
        if (source == titleField) {
            String title = (String)titleField.getValue();
            artistField.setValue(title);
        }
    }
});

Your JFormattedTextField needs a Formatter that can handle String. Here is a dumb formatter that just returns the same String (A JTextField and a DocumentListener is a better choice if you don't need a Formatter):

class StringFormatter extends AbstractFormatter {

    @Override
    public Object stringToValue(String text) throws ParseException {
        return text;
    }

    @Override
    public String valueToString(Object value) throws ParseException {
        return (String)value;
    }

}

You use it when you initilise the JFormattedTextField like:

JFormattedTextField titleField = new JFormattedTextField(new StringFormatter());

Upvotes: 2

Andy
Andy

Reputation: 8949

Try calling commitEdit before getValue maybe. Check out the Java Doc here.

Upvotes: 1

camickr
camickr

Reputation: 324147

I type text into titleField, press enter, and nothing appears in artistField

If your requirement is to do some processing when Enter is pressed, then you should be using an ActionListener. An ActionListion can be added to a JFormattedTextField or a JTextField. Then in the ActionLIstener code you can get the text and reset your other variable.

Upvotes: 1

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