private void login_OnClicked(object sender, RoutedEventArgs e)
{
FBSession sess = FBSession.ActiveSession;
if (sess.LoggedIn)
{
LoginButton.Content = "Login";
sess.Logout();
//Navigate back to same page, to clear out logged in info.
App.RootFrame.Navigate(typeof(MainPage));
}
else
{
LoginButton.Content = "Logout";
StartLogin();
}
}