AnyPlace.MainPage.GetRouteOfTheCurrentFloor C# (CSharp) Method

        private void GetRouteOfTheCurrentFloor()
        {
            if (Mymap.MapElements.Contains(_polyline))
                Mymap.MapElements.Remove(_polyline);

            _polyline = new MapPolyline { StrokeColor = Colors.Blue, StrokeThickness = 5 };
            if (_routePoi != null)
                foreach (var obj in _routePoi.pois)
                {
                    if (obj.floor_number.Equals(_selectedFloor))
                        _polyline.Path.Add(new GeoCoordinate(double.Parse(obj.lat, CultureInfo.InvariantCulture), double.Parse(obj.lon, CultureInfo.InvariantCulture)));
                }
            Mymap.MapElements.Add(_polyline);
        }