Dynamically add a expander control to list box

 public class Person
    {
        public string Name { get; set; }
        public int Age { get; set; }
        public string Country { get; set; }
    }

        DataSet dsPerson;
        ObservableCollection myList;
        public Window1()
        {
            InitializeComponent();
            dsPerson = new DataSet();
            string filePath = "Complete path where you saved the XML file";
            dsPerson.ReadXml(filePath);
            myList = new ObservableCollection();

            // Adding Content of Dataset to Collection
                for(int i=0;i                {

                  myList.Items.Add(new Person{ Name=dsPerson.Tables[0].Rows[i]["Name"].ToString(),
                                               Age=(int)dsPerson.Tables[0].Rows[i]["Name"],
                                               Country=dsPerson.Tables[0].Rows[i]["Name"].ToString()};
       
                }

            // Creating View of ICollection
            ICollectionView view = CollectionViewSource.GetDefaultView(myList);
            view.GroupDescriptions.Add(new PropertyGroupDescription("Country"));
            view.SortDescriptions.Add(new SortDescription("Country", ListSortDirection.Ascending));
            view.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
            lbPersonList.ItemsSource = view;
       }