Hierarchical Listbox

+1
I’m more of the “lean and mean” point of view.

Yes you are probably right. Once I get my head around the best way to implement it in my app I probably won’t look back. My inexperience in using it is causing me to complain. Not good :wink:

If you want to see what can be done with it tale a look at:
http://mysite.verizon.net/vzezdg8x/id5.html

That is just a listbox subclass

Karen, this sounds interesting but link is dead. Can you post a new link?

I shared this example month ago (on 2015-08-08):

Hierarchical ListBox Demo (37KB).

I just get an eye on it and it seems to be working with 2015r1 / (current) El Capitan.

I draws a color background (green when the entry is a folder / directory).

It use drag and drop (drop a folder from the Finder and watch its contents).

Remember: if you want to do something with the ListBox Class and do not found instructions to achieve that goal, you have to write the code by yourself (when it is possible) / ask here if possible and/or hints.

Cheers.

http://www.katkosoft.com/Mergeable%20Listbox%20Page/MergeableCellListbox.html