public RootViewModel()
{
this._settingview = new SettingsView();
this._settingviewmodel = new SettingsViewModel(this._settingview, this);
this._settingview.DataContext = this._settingviewmodel;
this._backstack = new Stack <InspectViewModel>();
this._forwardstack = new Stack <InspectViewModel>();
ViewPort = new InspectViewModel(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), DirectoryType.MyDocuments, $"{Environment.SpecialFolder.MyDocuments}", false);
RefreshViewPort();
NotifyOfPropertyChange(() => ViewPortChildren);
this.Drives = new ObservableCollection <DirectoryItemViewModel>(DirectoryStructure.GetLogicalDrives().Select(e => new DirectoryItemViewModel(e.FullPath, e.Type, e.Name, e.Hidden)));
DefultDirectoies();
}