https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.page.onnavigatedto?view=winrt-28000
Page.OnNavigatedTo(NavigationEventArgs) Method (Windows.UI.Xaml.Controls) - Windows apps |...
Invoked when the Page is loaded and becomes the current source of a parent Frame.
methodwindowsuixamlcontrols