// Code to execute when the application is activated (brought to foreground)
// This code will not execute when the application is first launched
private void Application_Activated(object sender, ActivatedEventArgs e)
{
if (PhoneApplicationService.Current.State.ContainsKey(ModelKey))
{
ViewModel = (MainViewModel)PhoneApplicationService.Current.State[ModelKey];
RootFrame.DataContext = ViewModel;
}
}
// Code to execute when the application is launching (eg, from Start)
// This code will not execute when the application is reactivated
private void Application_Launching(object sender, LaunchingEventArgs e)
{
using (var store = IsolatedStorageFile.GetUserStoreForApplication())
using (var stream = new IsolatedStorageFileStream("data.txt", FileMode.OpenOrCreate, FileAccess.Read, store))
using (var reader = new StreamReader(stream))
{
if (!reader.EndOfStream)
{
var serializer = new Newtonsoft.Json.JsonSerializer();
ViewModel = (MainViewModel)serializer.Deserialize(reader, typeof(MainViewModel));
}
}
// if the view model is not loaded, create a new one
if (ViewModel == null)
{
ViewModel = new MainViewModel();
}
RootFrame.DataContext = ViewModel;
}
