Re: Replacing Components in a JPanel

From: Hal Vaughan (hal_at_thresholddigital.com)
Date: 10/16/03

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    Date: Thu, 16 Oct 2003 04:16:30 GMT

    Stella wrote:

    > You can try "invalidate()" on the container. Adding of a component doesn't
    > always trigger the layout manager to relayout the container and by
    > invalidating the container the layout manager will be triggered to do
    > relayout. The first time the layout manager will be triggered by the
    > show().
    > Stellah

    Tried it. I have no idea why, but it didn't work. Someone below suggested
    using a CardLayout (new to me -- which isn't a surprise).

    Thanks for the idea. I didn't know about invalidate() and will definately
    keep it in mind for similar situations in the future.

    Hal

    >
    > "Hal Vaughan" <hal@thresholddigital.com> schreef in bericht
    > news:NQhjb.787330$uu5.137635@sccrnsc04...
    >> I have a JPanel in a window and I am putting different components in it
    >> as
    >> the user goes through a setup wizard. In theory, I have an array of
    >> components (other JPanels), and I want to step through them, displaying
    >> panel_0, then panel_1....
    >>
    >> I have no problem removing panel_0 from the JPanel parent (I've even done
    > a
    >> repaint() right after removing to be sure of this), but no matter what I
    >> do, I can't seem to do an "add(panel_1)" to the sampe panel. It's the
    > same
    >> method I'm using to add the first panel, before I show() the window, but
    >> once I remove a component and try to add another in its place, I get a
    >> blank.
    >>
    >> Is there a reason I can't add components? Is it because the window is
    >> visible? What do I need to do?
    >>
    >> Thanks!
    >>
    >> Hal

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