JTree

[rekenaar]

Hello

I am trying to use JTree to represent a file structure. It reads the files in a folder and put it in the tree. The Problem is if a folder is empty is not displayed correctly in the JTree (It gets displayed as a leaf).

Is there some way to force a node not be displayed as a leaf?

Here is some code:

	public void buildNodes(DefaultMutableTreeNode parentNode)
	{

		DefaultMutableTreeNode node = null;
		DefaultMutableTreeNode mainNode = null;
		String projRoot = m_parent.getFileRoot() + m_projID + "\\";
		File dir;
		String[] files;
		
		/* Opportunity */
		mainNode = new DefaultMutableTreeNode(new ModuleNode("Opportunity"));
		
		dir = new File(projRoot + "Opportunity\\");
    
    
    
    files = dir.list();
    if (files == null) {
        // Either dir does not exist or is not a directory
    } else {
        for (int i=0; i<files.length; i++) {
            // Get filename of file or directory
            node = new DefaultMutableTreeNode(new ModuleNode(files[i]));
						mainNode.add(node);
        }
    }		
	
		parentNode.add(mainNode);
		
		/* Initiation */
		mainNode = new DefaultMutableTreeNode(new ModuleNode("Initiation"));
		dir = new File(projRoot + "Initiation\\");
    
    files = dir.list();
    if (files == null) {
        // Either dir does not exist or is not a directory
    } else {
        for (int i=0; i<files.length; i++) {
            // Get filename of file or directory
            node = new DefaultMutableTreeNode(new ModuleNode(files[i]));
						mainNode.add(node);
        }
    }		
		
		parentNode.add(mainNode);

Thanks in advance, any help will be appreciated.

 

[sedj]

Hehe, gone for your own JFileChooser I see then !

Instead of working out how not to display a leaf, can you not just say :

if (files == null || files.length == 0) {
   ...
} else {
   ...
}

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