I’m wondering how come the number of controls is limited to https://i.stack.imgur.com/bHBbz.png
I can not see how Mail’s list is made. Can anyone shed some light on this?
Specifically, I’m wondering how I can have a list of items, and when clicked, show options beneath it (as with Mail’s grouping of conversations).
Have a look at the
ExpanderViewin the newest version of the Toolkit.