C# Remove All Directory Permissions

Question

In C# (2.0) How do I remove all permissions to a directory, so I can limit the access. I will be adding access back to a limited set of users.

Answer 1

Here is a great set of articles from CodeProject about Windows ACL programming:

The Windows Access Control Model

Part 3 of the series shows .NET specific methods.

Answer 2

System.IO.Directory.GetAccessControl() and then edit the returned FileSecurity object.

Answer 3

Look at the classes in the System.Security.AccessControl namespace, and especially the DirectorySecurity.RemoveAccessRule method.

Also, if you remove all the permissions then you won't be able to add any back afterwards :-)