protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
            var list = new List<SymbolPoco>();
            for (int i = 0xE001; i <= (0xEC7A); i++)
            {
                var poco = new SymbolPoco(i);
                list.Add(poco);
            }

            listView.ItemsSource = list;
        }
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
            var list = new List <SymbolPoco>();

            for (int i = 0xE001; i <= (0xEC7A); i++)
            {
                var poco = new SymbolPoco(i);
                list.Add(poco);
            }

            listView.ItemsSource = list;
        }