Question

我已将Silverlight项目从4升级到5，现在编译错误，我将数据加载到DomainContext：

Context.Load(Context.GetMyEntityQuery(), LoadBehavior.RefreshCurrent, null, null);


The call is ambiguous between the following methods or properties: 

'System.ServiceModel.DomainServices.Client.DomainContext.Load<MyEntity>(System.ServiceModel.DomainServices.Client.EntityQuery<MyEntity>, System.ServiceModel.DomainServices.Client.LoadBehavior, System.Action<System.ServiceModel.DomainServices.Client.LoadOperation<MyEntity>>, object)
'System.ServiceModel.DomainServices.Client.DomainContext.Load          (System.ServiceModel.DomainServices.Client.EntityQuery,           System.ServiceModel.DomainServices.Client.LoadBehavior, System.Action<System.ServiceModel.DomainServices.Client.LoadOperation>,           object)'

任何想法如何解决这个问题（我有100个这样的错误）？

修改

这样打电话有帮助：

Context.Load<MyEntity>(Context.GetMyEntityQuery(), LoadBehavior.RefreshCurrent, null, null);

罪魁祸首就是这个重载（程序集System.ServiceModel.DomainServices.Client.dll，v2.0.5.0）

[EditorBrowsable(EditorBrowsableState.Never)]
public virtual LoadOperation Load(EntityQuery query, LoadBehavior loadBehavior, Action<LoadOperation> callback, object userState);

与此一起

public LoadOperation<TEntity> Load<TEntity>(EntityQuery<TEntity> query, LoadBehavior loadBehavior, Action<LoadOperation<TEntity>> callback, object userState) where TEntity : Entity;

似乎后者足够了，为什么包括前者呢？无论如何，将进一步调查（似乎我参考了最新的ria服务1.0 SP2，清理一切并重建没有帮助）。

Answer 1

我曾经通过以下方式将数据加载到 DomainContext 。

public void GetPersonObjectDataFromService(Action<LoadOperation<TempPersonDTO>>    loadData)
    {                                           
          var query1 = this.tpDataProviderContext1.GetPersonObjectDataFromServiceQuery();
          tpDataProviderContext1.Load(query1, LoadBehavior.RefreshCurrent, loadData, null);
    }

TempPersonDTO是具有数据的类。谢谢。

silverlight从4到5升级ria服务编译错误

1 个答案: