Silverlight可以启动页面刷新吗？

public partial class App : Application
{
    public App()
    {
        this.Startup += this.Application_Startup;
        this.Activated += this.Application_Activated;
        this.InitializeComponent();
    }

    private void Application_Startup(object sender, StartupEventArgs e)
    {
        this.RootVisual = new MainPage();
        // 在这里添加刷新页面的代码
    }

    private void Application_Activated(object sender, ActivatedEventArgs e)
    {
        // 在这里添加刷新页面的代码
    }
}