AnyPlace.MainPage.listpicker_selection_change C# (CSharp) Method

        private void listpicker_selection_change(object sender, SelectionChangedEventArgs e)
        {

            if (isDownloading)
                return;
            if (!pickerOpen)
                return;

            pickerOpen = false;

            _foundBuilding = false;
            buildLoaded = false;
            removeSearchButton();
            if (BPicker.SelectedItem != null)
            {
                var selected = BPicker.SelectedItem.ToString();
                if (selected.Equals("None") || selected.Equals("No Buildings to show"))
                    return;
                if (Mymap.TileSources.Count > 0)
                    Mymap.TileSources.Clear();
                BuildingSearch(selected);
                if (_foundBuilding)
                {
                    _searchBuilding = true;
                    _tileLoaded = true;
                    _foundTile = true;
                }
                else
                {
                    _searchBuilding = false;
                    _tileLoaded = false;
                    _foundTile = false;
                    if (Mymap.TileSources.Contains(_wmstileprovider))
                        Mymap.TileSources.Remove(_wmstileprovider);
                }
                grid_search.Visibility = Visibility.Collapsed;
                ContentPanel.Visibility = Visibility.Collapsed;
                ApplicationBar.IsVisible = true;
            }

        }