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

Frage / 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?

Antwort / Lösung

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:

• if the components share a TJamShellLink, you can use its OnNavigating event to control the opening of folders
• some controls have additional own events that serve the same purpose. See https://knowledgebase.jam-software.com/6774?language=EN