反向地理定位器返回地址为＆＃39;南极洲＆＃39;

Question

尝试使用GetAddressesForPositionAsync（）以查找我的坐标也可以指向的可能地址列表。我使用esri ArcGIS映射调用地图并将其添加到mapview

Esri.ArcGISRuntime.Mapping.Map myMap = new Esri.ArcGISRuntime.Mapping.Map(SpatialReference.Create(4326));
myMapView = new Esri.ArcGISRuntime.Xamarin.Forms.MapView();
geoCoder = new Geocoder();
//assign the map to a mapview
myMapView.Map = myMap;

然后使用事件处理程序等待用户双击屏幕。

 //event handler
 myMapView.GeoViewDoubleTapped += new EventHandler<Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs>(geotappedMap);

 //the location for the pin and sent to geothings()
 double Lat = ((((Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs)e).Location.X));
 double Lng = ((((Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs)e).Location.Y));
 myLocation = new MapPoint(Lat, Lng);

程序在那里放置一个标记，然后使用水龙头调用获取位置的坐标。

 public async void geothings(Object sender, EventArgs e, Position p)
    {
        try
        {
        var possibleAddresses = await geoCoder.GetAddressesForPositionAsync(p);

        foreach (var address in possibleAddresses)
            _label2.Text += "\n\n" + address;
        }
        catch (Exception ex)
        {
            await MainPage.DisplayAlert("Error Getting Address", ex.Message, "Close");
        }
    }

该功能可以毫无问题地运行，但标签会更新为“南极洲＆＃39;被叫之后。有谁知道为什么或如何发生这种情况？