private void NavigateToCameraPage(MapElementsLayer sender, MapElementsLayerClickEventArgs args)
{
int id = (int)args.MapElements[0].Tag;
var camera = this.camerasViewModel.GetById(id);
this.Frame.Navigate(typeof(CameraPage), camera);
}
async void MapElement_ClickEvent2(object sendeer, MapElementsLayerClickEventArgs e)
{
var dialog = new MessageDialog("Pushpin 4 was clicked!");
await dialog.ShowAsync();
}
