Out of the box such functionality is not available for RadTreeList. In order to achieve your goal you need to manually allow/restrict the user from viewing the information.
The approach is as follows:
- You need to hook the ItemDataBound event of RadTreeList
- In its body you should check what is the currently bound item and then the event argument item to the appropriate type
- Then based on some condition you should either hide or show the required item.
You could use the following help topics from RadTreeList documentation:
Accessing cells and rows
Additionally, for the condition you could use the:
All the best,
the Telerik team
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