Windows phone 7 反序列化XML无法将类连接到元素

我正在尝试将web上的XML文档反序列化为WindowsPhone7环境的关联类。我使用了一个异步函数来获取文档，它加载到一个XmlReader中，据我所知，通过调试器，反序列化器报告它可以被反序列化。当我尝试反序列化时，我得到一个空类

这是我要从Xml填充的类：

namespace CineQuest
{
    //[Serializable()]
    //This is the main head of the XML data object
    [XmlRoot("festival")]
    public class Festival
    {
    /* Later */
    //[XmlElement("program_items")]
    //public ProgramItems programItems  { get; set; }

    [XmlElement("films")]
    public Films films { get; set; }

    [XmlElement("schedules")]
    public Schedules schedules { get; set; }

    /* Later */
    //[XmlElement("venue_Locations")]
    //public VenueLocations venueLocations { get; set; }
}

public class Films
{
    [XmlArray("films")]
    [XmlArrayItem("film", typeof(Film))]
    public List<Film> filmsList { get; set; }

    public Films()
    {
        filmsList = new List<Film>();
    }
}

public class Film
{
    [XmlElementAttribute("id")]
    public string id { get; set; }

    [XmlElement("title")]
    public string title { get; set; }

    [XmlElement("description")]
    public string description { get; set; }

    [XmlElement("tagline")]
    public string tagline { get; set; }

    [XmlElement("genre")]
    public string genre { get; set; }

    [XmlElement("imageURL")]
    public string imageURL { get; set; }

    [XmlElement("director")]
    public string director { get; set; }

    [XmlElement("producer")]
    public string producer { get; set; }

    [XmlElement("cinematographer")]
    public string cinematographer { get; set; }

    [XmlElement("editor")]
    public string editor { get; set; }

    [XmlElement("cast")]
    public string cast { get; set; }

    [XmlElement("country")]
    public string country { get; set; }

    [XmlElement("language")]
    public string language { get; set; }

    [XmlElement("film_info")]
    public string film_info { get; set; }
}

public class Schedules
{
    [XmlArray("schedules")]
    [XmlArrayItem("schedule", typeof(Schedule))]
    public List<Schedule> schedulesList { get; set; }

    public Schedules()
    {
        schedulesList = new List<Schedule>();
    }
}

public class Schedule
{
    [XmlElementAttribute("id")]
    public string id { get; set; }

    [XmlElementAttribute("program_item_id")]
    public string programItemId { get; set; }

    [XmlElementAttribute("start_time")]
    public string startTime { get; set; }

    [XmlElementAttribute("end_time")]
    public string endTime { get; set; }

    [XmlElementAttribute("venue")]
    public string venue { get; set; }
}
}

---

我知道我可以手动填充这些类，但我知道我缺少一些东西，无法将反序列化的Xml连接到它们应该连接到的类，但我不知道是什么。

我相信如果要序列化，必须使用

Serializable

属性装饰所有类

XmlSerializer serializer = new XmlSerializer(typeof(Festival));
reader = XmlReader.Create(new StringReader(data.Result));
object deserialization = serializer.Deserialize(reader);
MessageBox.Show(deserialization.ToString());
festival = (Festival)deserialization;

FilmItemList list = new FilmItemList(festival);
list.populateList();         
foreach (FilmItem item in list.Itemlist)
{
    this.Items.Add(new ItemViewModel() { LineOne = item.lineone, LineTwo =    item.linetwo, LineThree = item.linethree, LineFour = item.linefour });
}