public override async void OnNavigatedTo(Windows.UI.Xaml.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (CountryTypes.Count != 0)
{
return;
}
(await SettingService.AvailableCountries()).ForEach(x =>
{
CountryTypes.Add(x);
});
RaisePropertyChanged(() => SelectedCountryType);
Reload(_selectedCountryType);
}