in ContosoApp/AppShell.xaml.cs [145:162]
private void OnNavigatingToPage(object sender, NavigatingCancelEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
if (e.SourcePageType == typeof(CustomerListPage))
{
NavView.SelectedItem = CustomerListMenuItem;
}
else if (e.SourcePageType == typeof(OrderListPage))
{
NavView.SelectedItem = OrderListMenuItem;
}
else if (e.SourcePageType == typeof(SettingsPage))
{
NavView.SelectedItem = NavView.SettingsItem;
}
}
}