組成和RIA

Question

我有相關的屬性問題組成attribut和RIA.I使用POCO和silverlight。這裏是我的MODELE：

[MetadataTypeAttribute(typeof(ModeleEnvoiEaMetaData))] 
    [Serializable] 
    public abstract partial class ModeleEnvoiEa 
    { 
     [DataMember] 
     public virtual int IdModeleEnvoiEa {get;set;} 
     [DataMember] 
     public virtual string Libelle {get;set;} 
     [DataMember] 
     public virtual Nullable<int> IdModeleEnvoiEaFooter {...//FK } 
     public virtual ModeleEnvoiEaHeaderFooter ModeleEnvoiEaFooter 
     { 
      get { return _modeleEnvoiEaFooter; } 
      set 
      { 
       if (!ReferenceEquals(_modeleEnvoiEaFooter, value)) 
       { 
        var previousValue = _modeleEnvoiEaFooter; 
        _modeleEnvoiEaFooter = value; 
        FixupModeleEnvoiEaFooter(previousValue); 
       } 
      } 
     } 
     private ModeleEnvoiEaHeaderFooter _modeleEnvoiEaFooter; 
    } 

public partial class ModeleEnvoiEaMetaData 
    { 
//... 
[Association("ModeleEnvoiEa_ModeleEnvoiEaFooter","IdModeleEnvoiEaFooter","IdModeleEnvoiEaHeaderFooter")] 
     [Include] 
     [Composition] 
     public ModeleEnvoiEaHeaderFooter ModeleEnvoiEaFooter;  
} 

} 

在客戶端我叫測試酒莊服務方法，在客戶端的性能ModeleEnvoiEaFooter不爲空，但在我DomainServices類此屬性爲null。即使使用de Composition attribut也是如此。我如何將ModeleEnvoiEaFooter屬性的值發送到Domainservices類？

[Invoke] 
public ModeleEnvoiEa Test(ModeleEnvoiEa modele) 
{ 
    // modele.IdModeleEnvoiEaFooter == 1 // FK to ModeleEnvoiEaFooter 
    // modele.ModeleEnvoiEaFooter is null here ! Why ? an how can i send this object 
} 

Answer 1

嘗試將ModeleEnvoiEaFooter標記爲DataMember。