问应用程序显示来自应用程序中不同页面的启动按钮的不同行为

EN

private CustomObject myObject;

protected override void OnNavigatedFrom(NavigationEventArgs args)
{
    //Save to State when leaving the page
    PhoneApplicationService.Current.State["myObject"] = myObject;
    base.OnNavigatedFrom(args);
}

protected override void OnNavigatedTo(NavigationEventArgs args)
{
    if (PhoneApplicationService.Current.State.ContainsKey("myObject"))
    {
        //Restore from State
        myObject = (CustomObject)PhoneApplicationService.Current.State["myObject"];
    }
    else
    {
        //No previous object, so perform initialization
        myObject = new myObject();
    }
}