System.Security.Permissions.FileIOPermission.IsSubsetOf C# (CSharp) Метод

        public override bool IsSubsetOf(IPermission target) { return false; }
        public bool IsUnrestricted() { return false; }

 static void Main(string[] args)
 {
     CodeAccessPermission permissionA = new FileIOPermission(FileIOPermissionAccess.AllAccess, @"c:\");
      CodeAccessPermission permissionB = new FileIOPermission(FileIOPermissionAccess.Read, @"c:\temp");
      if (permissionB.IsSubsetOf(permissionA))
      {
     System.Console.WriteLine("PermissionB is a subset of PermissionA");
      }
      else
      {
     Console.WriteLine("PermissionB is NOT a subset of PermissionA");
      }
 }