Re: Mutable ComboBox

Hi Rex. Thanks for the response. This is what I originally tried but I got the following exception:

java.lang.RuntimeException: Cannot use this method with a non-Mutable data model.
    at javax.swing.JComboBox.checkMutableComboBoxModel(JComboBox.java:773)
    at javax.swing.JComboBox.removeAllItems(JComboBox.java:746)

I suppose my question wasn't really can it be done at the moment, as looking at the code, I know it can't. I suppose I was asking if it was planned to be done in the future?

Thanks, Nick.



On 10 August 2010 15:10, Rex Kerr <ichoran [at] gmail [dot] com> wrote:

The underlying JComboBox can do this via the add/remove Item methods.  You can access this directly by using the peer field of the Scala ComboBox.

I am not sure whether this will confuse anything; I haven't tried it myself.  But that's the way I'd go.  (The Scala wrapper does not provide an equivalent for the add/remove methods.)

  --Rex

On Tue, Aug 10, 2010 at 9:52 AM, Nick D'Arcy <nickdarcy [at] gmail [dot] com> wrote:

Hi all.

Is there anyway I can alter the items in a ComboBox once it has been created?

I seem to be running into this problem a lot and my hack of removing the combo box, creating a new one and putting it back into the component is getting a bit tired.... as above other things, you have to set up reactions again.

Thanks, Nick.

You can override the data model using the Java-side methods with

peer.setModel(new DefaultComboBoxModel(/*item array*/))

but again, I don't know whether that will work or cause things to break horribly.

Hi,
On Tue, Aug 10, 2010 at 11:34 AM, Rex Kerr <ichoran [at] gmail [dot] com> wrote:

You can override the data model using the Java-side methods with

peer.setModel(new DefaultComboBoxModel(/*item array*/))

but again, I don't know whether that will work or cause things to break horribly.

I'm doing exactly that and haven't had any problems.
       // creation val combo = new ComboBox(List(/* data */)) { preferredSize = new Dimension(300, 25) maximumSize = preferredSize minimumSize = preferredSize peer.setModel(new DefaultComboBoxModel) // <- to be mutable }          // changes combo.peer.removeAllItems()          combo.peer.addItem(i)

Regards,Germán