JTree node selection

[Vijay Krishna]

Hi

I hav two JTrees displayed side by side. These two trees have almost similar structure.My requirement is , when user selects a node from one tree, corresponding node in the second tree should be shown as selected automatically. Is there anyway?

Thanks in advance,
Dev.

[pankaj patil]

Can u give me the code how to generate tree

[Pat Hays]

Hello Super Dev

Here is the code.

jTree1.addTreeSelectionListener(new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e)
{
jTree1_valueChanged(e);
}
});
...
...
...
 

private void jTree1_valueChanged(TreeSelectionEvent e)
{
System.out.println("\njTree1_valueChanged(TreeSelectionEvent e) called.");
DefaultMutableTreeNode node = (DefaultMutableTreeNode)jTree1.getLastSelectedPathComponent();
if(node == null) return;

Object o = node.getUserObject();
System.out.println(">>" + ((o==null)? "null" : o.toString()) + " is selected.");
// TODO: Add any handling code here for the particular object being selected
 
//-- Show correspondingNode in jTree2 -----------
DefaultMutableTreeNode correspondingNode = ????; //point to the node in jTree2 which is going to be shown.
TreePath path = new TreePath(correspondingNode.getPath());

jTree2.scrollPathToVisible(path);
jTree2.setSelectionPath(path);
//------------------------------------------
}

[Vijay Krishna]

Hi Pat Hays..

Thanks for ur replay..
My problem was how to find the corresponding node in the second tree.

DefaultMutableTreeNode correspondingNode = ???; // how to get this
matching node.

User can select any inner node , and I want to find that corresponding node in the second tree.

[Vijay Krishna]

Hi..

Finally I got a solution.

[Gregg Bolinger]

Super Dev,

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Thanks and welcome to Javaranch!