public RegistryModel(Guid ID) { //check if there is data if (string.IsNullOrWhiteSpace(DataStore.GetPath(ID, PackageFileType.REGISTRY))) { Keys = Enumerable.Empty <IGrouping <string, RegKey> >(); return; } //get data Keys = RegData.Get(DataStore.GetPath(ID, PackageFileType.REGISTRY)).GroupBy(a => a.Key); }