public void OnGet(int Id)
        {
            TargetDirectory = m_documentManager.GetTargetDirectoryByID(Id);

            string[] filesindirectory = Directory.GetDirectories(TargetDirectory.DirectoryPath);

            FilePaths = filesindirectory.ToList();
            Docs      = m_context.DMS.ToList();
            //for elke filepath kijken of deze al bestaat, anders toevoegen aan DB
            foreach (var item in FilePaths)
            {
                var newPath = Docs.Find(x => x.FilePath == item);
                if (newPath == null)
                {
                    TargetDirectory.FilePaths.Add(new Models.DMS
                    {
                        FilePath      = item,
                        DocumentLevel = Models.DocumentLevel.Invisible
                    });
                    //add new => document always invisible
                    m_context.SaveChanges();
                }
                else
                {
                    //path already in DataBase => content will still be available
                }
            }


            Docs = TargetDirectory.FilePaths.ToList();
        }