C# EF 4.1 Code First Silverlight 4 RIA公共虚拟ICollection<;T>;问题

C# EF 4.1 Code First Silverlight 4 RIA公共虚拟ICollection<;T>;问题,c#,silverlight,ef-code-first,wcf-ria-services,C#,Silverlight,Ef Code First,Wcf Ria Services,我有2个EF 4.1代码优先类: public class SKUMaster { public string SKU { get; set; } public virtual ICollection<SKUMasterFinishedItem> SKUMasterFinishedItems { get; set; } } public class SKUMasterFinishedItem { public string SKU { get; set; } pub

我有2个EF 4.1代码优先类:

public class SKUMaster {
  public string SKU { get; set; }
  public virtual ICollection<SKUMasterFinishedItem> SKUMasterFinishedItems { get; set; }
}

public class SKUMasterFinishedItem {
  public string SKU { get; set; }
  public int FinishedItemID { get; set; }
  public int Quantity { get; set; }
  public virtual FinishedItem FinishedItem { get; set; }
  public virtual SKUMaster SKUMaster { get; set; }
}
公共类SKUMaster{
公共字符串SKU{get;set;}
公共虚拟ICollection SkumMasterFinishedItems{get;set;}
}
公共类SkumMasterFinishedItem{
公共字符串SKU{get;set;}
public int FinishedItemID{get;set;}
公共整数数量{get;set;}
公共虚拟FinishedItem FinishedItem{get;set;}
公共虚拟SKUMaster SKUMaster{get;set;}
}

来自SkumMasterFinishedItems的导航属性显示在Silverlight 4 RIA端,但SkumMaster.SkumMasterFinishedItems不显示。有什么想法吗?

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