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How to restrict the directories or elements a user can navigate to?

Question / Problem

In my application I want to restrict the access to only some folders or a single branch of the file system. How can achieve this?

Answer / Solution

There are several measures you can take, depending on the components you are using:

In the TJamShellTree, you can set the root nodes via the MultipleRoots and RootedAt properties. RootedAt is also available for the BreadCrumbBar.

To avoid, that a user manually opens a folder you have different options of interception: