private void Button_Click(object sender, RoutedEventArgs e)
{
int n = int.Parse(textBox_nfilmow.Text);
rank = new ObservableCollection <Film>(baza.Ranking(n).Lista_Filmów);
listView_ranking.ItemsSource = rank;
}
public RankingWindow()
{
InitializeComponent();
rank = new ObservableCollection <Film>();
baza = Baza_filmow.OdczytajXML("C:/Users/zioma/Desktop/projektPO/GUI/bin/Debug/bazafilmow");// Sciezke ustawic na .... Desktop/projektPO/GUI/bin/Debug/bazafilmow
rank = new ObservableCollection <Film>(baza.Ranking(10).Lista_Filmów);
listView_ranking.ItemsSource = rank;
textBox_nfilmow.Text = "";
}