void INavigationAware.OnNavigatedFrom(NavigationContext navigationContext) { SettingPages.ForEach(page => page.Sections.ForEach(section => section.Save())); }
void INavigationAware.OnNavigatedTo(NavigationContext navigationContext) { SettingPages.ForEach(page => page.Sections.ForEach(section => section.Load())); CurrentPage = SettingPages.FirstOrDefault(); }