I have to improve the navigation dock of my project and I need an expandable menu. I would realize something like a custom tree view (the standard one does not have all the features I need), but I can’t figure how to implement it (if possible). The result I wish to obtain is showed in the following picture:
I already have two template for the “item” and “subitem” items (w/o the “+” box), but my main concern is how to realize the dynamic positioning after expansion or collapse (with a single click) of an “item”… I tried using the template repeater but without success…
Does anyone have any suggestions?