Listbox hierarchy

How can I detect if a certain row in a hierarchical listbox is a row belonging to an expanded row?

Like in:

+Father +Father -Father |Daughter <--- |Daughter +Father

I use the RowTag to store that information when I expand the parent row. For example, if the parent row has an index of 3, it’s RowTag will store “3”, it’s first child will be “3.1”, then “3.2”, etc. I store and retrieve as string so I can have “3.1”, “3.10”, and “3.100”, if needed.

Hi Ken,

yes I was already coding that as it seems a logic solution. There is no property like “Parent” or something. “parent” points to RectControl…

Right, Xojo doesn’t track that link internally, AFAIK.