public MainWindow()
{
InitializeComponent();
removeMethod();
trekSpots = TestStorge.ReadXml <ObservableCollection <Hill> >("trekSpots.xml");
var combolist = trekSpots.Select(x => x.difficulty).Distinct();
Combo_Difficulty.ItemsSource = combolist;
Grd_spots.ItemsSource = trekSpots;
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
removeMethod();
trekSpots = TestStorge.ReadXml <ObservableCollection <Hill> >("trekSpots.xml");
//TestStorge.WriteXml<ObservableCollection<Hill>>(trekSpots, "trekSpots.xml");
}