private void OnBasemapsClicked(object sender, SelectionChangedEventArgs e)
{
// Get the text (basemap name) selected in the list box
var basemapName = e.AddedItems[0].ToString();
// Pass the basemap name to the view model method to change the basemap
ViewModel.ChangeBasemap(basemapName);
// Hide the basemaps flyout
flyguy.Hide();
}