Re: how to programmatically expand the root node?

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#8804

From: Vladimir Patt
Date: Thu, 13 Jul 2000 00:00

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"M Le" <wildcard_mcl@hotmail.com> wrote in message news:396cb216@dnews...
> i'd like to programmatically expand the root node of a JTree after
> the tree has been initialized.
>
> i've tried
>     jTree.expandPath(new TreePath(rootNode.getPath()));
> but that didn't do anything.
>
> i even tried fireTreeWillExpand with no luck.

There is bug in 1.2.2 which is claimed been fixed in 1.3. If you set Root to
be nonvisible, there is no chance to expand tree, sorry but can't remember
where I've read about it.
For me this peace of code works fine:

if ( isFirst ) {
      for (int i = 0; i < myTree.getRowCount(); i++) {
        myTree.expandRow(i);
      }
    myTree.setRootVisible(false);
}

Cheerse,
Vladimir,

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From: "Vladimir Patt" <vladimir@emc.co.il>
Subject: Re: how to programmatically expand the root node?
Date: 2000/07/13
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