protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
Bootstrapper bootstrapper = new Bootstrapper();
bootstrapper.Run();
EventAggregator = ServiceLocator.Current.GetInstance<IEventAggregator>();
}
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
// bootstrap MEF composition
Bootstrapper b = new Bootstrapper();
b.Run();
}