Disabling 'paste' in a jTextfield

Question

I have an app that is written in Swing, awt. I want to prevent users from pasting values into the textfields. is there any way to do this without using action listeners?

Prolegomenon

Answer 1

You can just call setTransferHandler with a null parameter like this:

textComponent.setTransferHandler(null);

This will disable all copy/paste actions on the field.

Marginal

Thanks, in my case I need to enable the paste of an image file or print screen. – Lorentz

Answer 2

The best way is to remove action associated with CTRL+V keystroke in components ActionMap.

Boutin

Answer 3

The simplest way it to say: textComponent.setEditable(false);

This disables cut & paste, but copy is still enabled.

Villiers

True story, I have a text component where isEditable() returns false, but TransferAction still lets you paste into it. Pressing Ctrl-V is disabled, but if you have a Paste action in the main menu which is hooked up to the relevant component's transfer action, people will still be able to paste. – Tinstone

@Trejkaz hmm .. haven't seen such misbehaviour since ages (early swing versions did), and can't reproduce it right now. – Salzburg

Might have been fixed in the past few months. – Tinstone

Answer 4

public class PastlessJTextField extends JTextField {

        public PastlessJTextField() {
            super();
        }
        public PastlessJTextField( int columns ){
            super( columns );
        }

        @Override
        public void paste() {
            // do nothing
        }


    }

Slurp

Answer 5

You may be able to override the paste() method in JTextComponent.

Chance