/// <summary>
/// Handles the event for user tapping on the login button
/// </summary>
/// <param name="sender">
/// Sender object
/// </param>
/// <param name="e">
/// Event args
/// </param>
private void LoginButtonClick(object sender, RoutedEventArgs e)
{
SessionStorage.Remove();
FacebookSessionClient fb = new FacebookSessionClient(AppId);
fb.LoginWithApp("basic_info,publish_actions,read_stream", "custom_state_string");
}