1. Open Telerik Theme Viewer
2. Choose "Item Containers"
3. Observe "Tree"
4. Choose Theme "Office2019Dark"
Expected: Tree still shows content
Actual: Elements are not visible
Hi, Stephan,
It seems that you hit a known issue regarding RadTreeView with Office2019 theme. . You can track its progress, subscribe for status changes and add your comments on the following link:
Currently, the possible solution that I can suggest is to set the FullRowSelect property to false as it is demonstrated in the referred feedback item.
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Regards,
Dess | Tech Support Engineer, Principal
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