JList scrolling

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Adam - 06 Feb 2004 13:08 GMT

Hi

I have a JList contained within a JScrollpane container and am using the
following code to ensure the last item in the list is always visible.

DefaultListModel model = new DefaultListModel();
JList list = new JList(model);
JScrollpane pane = new JScrollPane(list);
getContentPane().add(pane);

list.ensureIndexIsVisibile(model.size()-1);

This does not seem to work, there does not seem to be a pattern to wether
the last item is displayed or not.

Can anybody help?

Thanks
Adam

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Kleopatra - 06 Feb 2004 14:28 GMT

> Hi
>
[quoted text clipped - 7 lines]
>
> list.ensureIndexIsVisibile(model.size()-1);

when exactly are you doing this? If on start-up of your program, make
sure to call the ensure... after the frame is realized (that is after
pack() or setSize()) or wrap the call into a
SwingUtilities.invokeLater(). If you want it after an item is added to
the model, invoke as well - that will ensure that the list has completed
the update of its internal state.

Greetings
Jeanette

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Adam - 11 Feb 2004 11:21 GMT

i am adding/removing items to the list dynamically at run time when the user
clicks a button.
i want the last item added to be displayed after it is added.

> > Hi
> >
[quoted text clipped - 17 lines]
> Greetings
> Jeanette

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JList scrolling

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