IsolatedStorageSettings适用于Windows Phone app 8的ApplicationSettings

Question

当应用程序通过AppStore更新时，Windows Phone 8应用程序存储的设置是否已保存？

Answer 1

IsolatedStorageSettings provide a convenient way to store user specific data as key-value pairs in a local IsolatedStorageFile with an lifespan of the application. You can find more about IsolatedStorageSettings Class .

So the answer is that Windows Phone app will save any data saved after app update. If you uninstall app you lose all your data from IsolatedStorageSettings.