c# - Refreshing interface in Windows Phone when reactivating -


in first wp7 app, have resolved (with mvvm pattern) except recovering app inactivity. have main screen list of database ítems , field each 1 that, depending on value , actual day, shows 1 value or (not calendar, same problem).

if user goes home and, next day, resumes app, calcs must done again, refresh contents. also, in second screen happens same: shows depends on day is.

how can detect activation (i know on application_activated function, don't know how use it) , refresh need (a refreshinterface function in second screen, if user leave app there, , main list in main screen).

i don't need save nothing in deactivation, refresh data on activation only.

in page's onnavigatedto method can subscribe application.activated event (don't forget unsubscribe in onnavigatedfrom). in event handler can update viewmodel.


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