WCF明明有值，但是返回到客户端确没有，怎么回事啊

 [ServiceContract]

    public interface IGetAssembly

    {

        [OperationContract]

        Dictionary<RemoteFileInfo, List<RemoteFileInfo>> GetAssembliesDic();



   



    }

  

    [DataContract]

    public class RemoteFileInfo

    {

        [DataMember]

        public string FileName;



        [DataMember]

        public long Length;



        [DataMember]

        public string Version;



        [DataMember]

        public byte[] FileByte;

    }

我就奇怪了，用wcf测试客户端测试，GetAssembliesDic是有返回值的，怎么在sliverlight中调用后，返回的结果就是无呢？

真是不爽啊，sliverlight真是不好用  
客户端 

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]

    [System.ServiceModel.ServiceContractAttribute(ConfigurationName = "IGetAssembly")]

    public interface IGetAssembly

    {



       

        [System.ServiceModel.OperationContractAttribute(AsyncPattern = true, Action = "http://tempuri.org/IGetAssembly/GetAssembliesDic", ReplyAction = "http://tempuri.org/IGetAssembly/GetAssembliesDicResponse")]

        System.IAsyncResult BeginGetAssembliesDic(System.AsyncCallback callback, object asyncState);



        System.Collections.Generic.Dictionary<GetAssembliesService.RemoteFileInfo, System.Collections.ObjectModel.ObservableCollection<GetAssembliesService.RemoteFileInfo>> EndGetAssembliesDic(System.IAsyncResult result);



       

        [System.ServiceModel.OperationContractAttribute(AsyncPattern = true, Action = "http://tempuri.org/IGetAssembly/GetAssemblyStream", ReplyAction = "http://tempuri.org/IGetAssembly/GetAssemblyStreamResponse")]

        System.IAsyncResult BeginGetAssemblyStream(GetAssembliesService.DownloadRequest request, System.AsyncCallback callback, object asyncState);



        GetAssembliesService.RemoteFileInfo EndGetAssemblyStream(System.IAsyncResult result);

    }

另外我还有2帖子，谁去回答下吧，随便说点话，我好结贴，不然分都给不了