Hi everyone,
I’ve been experimenting with Xojo’s new Library feature and decided to build something practical with it:
a Canvas-based TreeView suitable for reuse across projects.The TreeView is:
- dictionary-driven
- supports expand/collapse
- allows custom icons per node type
- supports optional attribute indicators
- cleanly separates model, layout, and rendering
I found this a great way to both learn the new Library system and end up with a reusable UI component.
The project is available on GitHub here: DesktopTreeViewLibrary
Screenshots:I’d be happy to hear feedback — especially from others experimenting with Libraries or custom Canvas controls.
I tried building this with the new Grid but wiring up events turned out to be a little challenging.
The DesktopListBox as a TreeView didn’t cut it for me either… but the canvas is nice..More work to be done, but please feel free to clone the repo!
Cheers!
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Link doesn’t work for me 
Here’s a fixed link 
2 Likes
Moderator action: fixed link in initial post (thanks @Tim_Parnell)
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@Brian_O_Brien , how about using Apple’s official alternate row colors on macOS?
Ya.. I had color groups setup but they kept getting lost on import and export.
Where is the scrollbar?
Mouse wheel… and it’s backwards… lol.
Are you able to branch and pull/push?
