Directory Security and Access Rules

 

using System.Security.AccessControl;

    FileSystemAccessRule faRule;

    FileSystemRights fsrRights;

    fsrRights = FileSystemRights.FullControl;

    faRule = new FileSystemAccessRule(

        new NTAccount("DOMAIN\\user"), 

        fsrRights, 

        InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, 

        PropagationFlags.InheritOnly, AccessControlType.Allow

    );

    //security.AddAccessRule(faRule);

    //File.SetAccessControl(txtFile.Text, security);

    DirectorySecurity dirsec = Directory.GetAccessControl(@"\\server\sub$\folder");

    dirsec.AddAccessRule(faRule);

    Directory.SetAccessControl(@"\\server\sub$\folder", dirsec);

 

The best explanation (MSDN)

Example1

Example2

ACL Propagation rules