Making a node in JTree non expandable

How do I make a node in a JTree non expandable. The nodes in the tree are DefaultMutableTreeNode. I have a tree with root R. It has children ch1, ch2, ch3. Nodes ch1 etc also have X number of children. What I want is if I click (either double click on the node or single clicking on the '+') on either of the child nodes ch1, ch2 and ch3 to disable expansion i.e. stop the tree collapsing beyond those nodes. I have tried tree.setExpandsSelectedPaths(false) and others but it still doesnt work. Any help much appreciated. Thanx.

Thanx Jeanette, that is exactly!! what I'm looking for. Much appreciated.

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Problem inserting new node into JTree with depthFirstEnumeration()

Hello,
I'm currently trying to use depthFirstEnumeration() to add and delete nodes for a simple JTree. I've written a method to handle this, but it keeps coming back with an exception saying that 'new child is an ancestor'.
All I'm trying to do is add and delete nodes from a JTree using add and remove buttons within a swing program. When a user adds the new node the JTree needs to be updated with new labels in sequential order dependent upon a depthFirst traversal of the JTree.
My current code for the add button is as follows,
public void actionPerformed(ActionEvent event)
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Any help and advice always appreciated.

This is about the 5th posting on the same question. Here is the link to the last posting so you can see what has already been suggested so you don't waste your time making the same suggestion.
http://forum.java.sun.com/thread.jspa?threadID=704980
The OP doesn't seem to understand that nodes don't just rename themselves and that renderers will only display the text of the current node. If you want the text displayed to changed, then you need to change the text associated with each node, which means iterating through the entire tree to update each node with new text. Then again, maybe I don't understand the question, but the OP keeps posting the same question without any additional information.

HELP: Hierarchical expanding list nodes do not remain expanded

h2. The Setup
- Have a "hierarchical expanding" list on page zero
- Set a child list item to be current for page 10
h2. The Steps
- Go to page 1, expand the hierarhical list, click on the child item
- takes me to page 10
h2. The Problem
- The list collapses and only shows the top-level items
- In other words, the child link that is supposed to be 'current' for page 10 is hidden
h2. The Solution?
Any thoughts on how to solve either using the baked in hierarchical expanding list template, or modifying it?
Related thread: Re: Lists - hierarchical expanding

Hi Michael,
Have a look at: making the tree nodes which are clicked into bold
That describes what I have done here: http://apex.oracle.com/pls/apex/f?p=33642:293
This uses a Tree item but you might be able to use it for a multi-level list item. In the code (which is shown near the end of the thread) jQuery is used to find the correct "node", highlight it, then traverse up through the tree ensuring that all parent nodes are "open" (ie, expanded).
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Reloading JTree and expanding last selected rows

I'm working on an applet that loads the nodes of a JTree from a database. When a node is selected, its data are displayed in a different panel. When a "reload" button is clicked, all the nodes in the JTree are removed except for the root node, and the JTree is recreated from the database. I'm try to get the new JTree to expand and select the rows that were selected before reloading, but I can't get this to work.
Before removing the nodes, I save the currently selected row numbers using JTree.getSelectionRows(). After recreating the JTree, I re-select the previously selected rows and try to expand them:
// tree is the name of the JTree.
tree.setSelectionRows(selected);
for (int i= 0; i < Array.getLength(selected); i++) {
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tree.scrollRowToVisible(selected[i]);
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The previously selected rows do not automatically become visible in the resulting JTree. I also tried using tree.expandRow instead of scrollRowToVisible, with the same results.
Any help would be appreciated!

I think part of your problem is this...
When you repopulate your tree, and only the root node is visible, getRowCount() will return 1. When you call expandRow(x) where x > 1, the result is basically a no-op (nothing happens). This is the correct behavior for these methods.
In other words, I think you need to come up with a whole new algorithm.
Let's assume you have a tree that looks like...
Node 0
|__________Node 0.0
|               |__________Node 0.0.0
|
|__________Node 0.1
|__________Node 0.2
                 |__________Node 0.2.0
                 |__________Node 0.2.1Try this...
//save the current open/closed state of the tree and selection state
Vector<Integer> selectedRows = new Vector<Integer>();
Vector<Boolean> openClosed = new Vector<Boolean>(tree.getRowCount());
openClosed.setSize(tree.getRowCount());
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// at this point the tree should have the same selection as before the reload.I hope this helps. Please reward me the Duke Dollars if it does. Not awarding the Duke Dollars kills the system (which is an honor system). A dead system hurts us all.
P.S. I guess I never referenced the little tree I drew. Oh well. It looks great doesn't it?

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@OP: please assign your dukes.
@Andre_Uhres: if you don't get rewarded in the next couple of days, please let me know here to get at least one duke for your effort.
Bye.

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You must use or implement the
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I implemented a GP in JAVA so i had the same problem wehn i started.

Cannot perform add node procedure for non-cluster Oracle homes

After deleting one of nodes,tried to reinstall the node by addNode.sh.
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what is your oracle version and operating system name and version?
check the output of cluvfy.sh
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refer the link:-
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Hi,
I'm using a JTree for displaying the file system.
Here, i want that whenever a node get expanded,
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under that node and then creating a new node and adding it to parent (all in expand() method).
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i got stuck b'coz of this only.
Thanks...

Now what i'm doing is every time expand() get called,
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current instance with all the children present in the
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b'coz right now i'm getting all the files/dirs that
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Hello
I have a swing application contening a JTree.
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If you carefully look at the java tutorial tree, the change is made for all the leaf icon. What I want is to change the icon of a not selected node of my tree while I do other stuff with the other nodes like select, display their contents, drag them ...
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Expanding nodes in JTree

I have an application that uses JTree
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expandPath(Treepath treePath) should work. Its possible that your treePath is wrong. How do you get the treePath?

Making a node in JTree non expandable

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