How fast WP7 would close app on deactivation via Windows button?

Question

Wondering, what i'd be able to do before app would be deactivated?

• If i'm sending a network request and user would press Windows before answer would come, request would be cancelled and a RequestCancelled exception would be thrown on app reactivation ( due to this article).
• If i have to write something asyncly to the isostorage, would it be done?

So, how fast app would be disabled? How much would i be able to store before disabling? Would i be able to save 1000 files asyncly?

Answer 1

Applications are given 10 seconds to complete the Deactivated handler. If the event handler has not been completed before this time span has elapsed, the application is terminated. It is recommended that applications aim for 2 seconds for completing the handler to provide a large buffer for unexpected delays. Applications should incrementally save data to isolated storage and to the State property while the application is running to reduce the amount of data storage that needs to be performed in the Deactivated handler.

http://msdn.microsoft.com/en-us/library/windowsphone/develop/microsoft.phone.shell.phoneapplicationservice.deactivated(v=vs.105).aspx