private async void Initialize() { // NOTE: to be a writable geodatabase, this geodatabase must be generated from a service with a GeodatabaseSyncTask. See the "Generate geodatabase" sample. try { // Create and load geodatabase. string geodatabasePath = DataManager.GetDataFolder("74c0c9fa80f4498c9739cc42531e9948", "loudoun_anno.geodatabase"); Geodatabase geodatabase = await Geodatabase.OpenAsync(geodatabasePath); // Create feature layers from tables in the geodatabase. FeatureLayer addressFeatureLayer = new FeatureLayer(geodatabase.GeodatabaseFeatureTable("Loudoun_Address_Points_1")); FeatureLayer parcelFeatureLayer = new FeatureLayer(geodatabase.GeodatabaseFeatureTable("ParcelLines_1")); // Create annotation layers from tables in the geodatabase. AnnotationLayer addressAnnotationLayer = new AnnotationLayer(geodatabase.GeodatabaseAnnotationTable("Loudoun_Address_PointsAnno_1")); AnnotationLayer parcelAnnotationLayer = new AnnotationLayer(geodatabase.GeodatabaseAnnotationTable("ParcelLinesAnno_1")); // Create a map with the layers. _myMapView.Map = new Map(BasemapStyle.ArcGISLightGray); _myMapView.Map.OperationalLayers.AddRange(new List <Layer> { addressFeatureLayer, parcelFeatureLayer, addressAnnotationLayer, parcelAnnotationLayer }); // Zoom to the extent of the parcels. await parcelFeatureLayer.LoadAsync(); _myMapView.SetViewpoint(new Viewpoint(parcelFeatureLayer.FullExtent)); } catch (Exception ex) { new UIAlertView(ex.GetType().Name, ex.Message, (IUIAlertViewDelegate)null, "Ok", null).Show(); } }