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Re: How to lock a tree no

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  Re: How to lock a tree no "Mark Holland" <mark.holland@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000

#1303 — Re: How to lock a tree no

  To: comp.lang.java.gui
>I have a DefaultMutableTreeNode that sometimes collapses on certain
> hardware (like a trackball) when the mouse hovers over a child node 
> in
> my JTree.
>
> How can I lock this one single node from collapsing? It's a root 
> node
> that's hidden so that all the second level child nodes appear, 
> making
> them look like multiple root nodes.

You could attach a listener to your tree, and prevent any collapse
events for the root node.
The following link has a good example on how to use this feature.
http://java.sun.com/docs/books/tutorial/uiswing/events/treewillexpandlistener.html

Mark

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