public class Movie
        {
            public string nome { get; set; }

          
        }

        public class Movielist : List<Movie>
        {
            public Movielist()
            {
                Add(new Movie { nome = "nome di prova" });


            }

        }

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
        {

            
            base.OnNavigatedTo(e);
        

            ServiceReference1.WebServiceSoapClient serviceclient = new ServiceReference1.WebServiceSoapClient();
            serviceclient.comuniautoCompleted += new EventHandler<ServiceReference1.comuniautoCompletedEventArgs>(serviceclient_comuniautoCompleted);
            serviceclient.comuniautoAsync(autoCompleteBox1.Text);

        }
   
 private void serviceclient_comuniautoCompleted(object sender, ServiceReference1.comuniautoCompletedEventArgs e)
        {
                  
        XDocument xdoc = XDocument.Parse(e.Result.ToString());    
            var StaffMembers = xdoc.Descendants("lista_comuni").Select(pippo => new
          {
             nomecomune = pippo.Element("nome").Value,
                
             
            }).ToList();


            var a = new Movielist();
            foreach (var pippo in StaffMembers)
            {
               a.Add(new Movie() {nome = pippo.nomecomune });
            
};
               
            autoCompleteBox1.ItemsSource =a ;