Good morning
Stumbled upon this Xojo add-on for displaying hierarchical tree view:
Someone using this add-on? And if so…is there a possibility to change those Open/Close Icons through own images?
Should look in the end like those FPGA IDEs from Altera/Xilinx/Lattice:
You should take a look at the docs. It’s possible with DesktopListbox.
Wow…that is easy 
If ListBox1.RowExpandedAt(row) Then
g.DrawPicture(folderopen, 0, 0)
Else
g.DrawPicture(addfolder, 0, 0)
End If
Going this way probably doesn’t take longer as using an add-on. And I learn much more then 
Hmm…just for understanding…DesktopListBox doesn’t know actually about hierarchy?
AddExpandableRow is just for drawing the collapse/expand icon and causes the text to indent.
So if I want a deeper hierarchy, I would have to draw an icon with white space at left, right?
Check out the video here to understand how hierarchical Listboxes work in Xojo.
And you can get a deeper insight here.
