Trying to figure out how to display a folder tree with only 'folder' icons.  no files involved here. The idea is to choose a folder.

The default display shows a file icon for leaf nodes.

I have tried the following workaround, but the folders show up in permanently open state, whether collapsed or not.

loadFilter: function(data, parent){
   function forNodes(data, callback){
        .
        .
        }

        forNodes(data, function(node){
            node.iconCls = 'open-folder';
        });
        return data;

}



 

Is there any way to correctly assign the node icon class/image in a tree.