data model for the page.
data model for the page. Used as a communication channel between the pages.
is Back navigation enabled.
is forward navigation enabled.
is called before switching to the previous page.
is called whenever the page was visible on screen and is being hidden.
is called before the page is displayed.
is called before the page is displayed. Long-running task should be executed here (a loading panel is automatically displayed).
is called before switching to the next page.
is called whenever the page was not visible on screen and becomes visible.