private async void CityList_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
{
int index = CityList.SelectedIndex;
if (index == -1)
{
return;
}
ListBox listBox = sender as ListBox;
City city = null;
if (listBox.Tag is State)
{
State state = listBox.Tag as State;
city = state._cities[index];
}
if (listBox.Tag is SubContinent)
{
SubContinent subContinent = listBox.Tag as SubContinent;
city = subContinent._stateOrCityList[index] as City;
}
await SampleDataSource.ChangeCity(city._UrlToken);
// Use the navigation frame to return to the previous page
itemDetailPage.UpdateTitle();
if (this.Frame != null && this.Frame.CanGoBack)
{
this.Frame.GoBack();
}
}