模型差分中间层xpand

Question

我试图让扩展框架源代码中提供的Demo能够在“Xpand- source -17.1.3.6\Demos\中间层\E 4035- remoting”中工作，但我得到了异常below.Specifically，我想在远程处理场景中使用模型差异。

对象引用未设置为对象的实例。

服务器堆栈跟踪:在DevExpress.ExpressApp.Security.SecurityStrategy.GetObjectSpaces() at DevExpress.ExpressApp.Security.SecurityStrategy.RegisterProcessors(Dictionary`2处理器，Object permissionsProvider，IObjectSpace objectSpace(在DevExpress.ExpressApp.Security.SecurityStrategy.CreateSelectDataSecurityCore(IObjectSpace objectSpace)在DevExpress.ExpressApp.Security.SecurityStrategy.CreateSelectDataSecurity(IObjectSpace objectSpace)，at DevExpress.ExpressApp.Security.ClientServer.SecuredSerializableObjectLayer.CreateSerializableObjectLayerCore(IClientInfo clientInfo，IDataLayer dataLayer，IRequestSecurityStrategyProvider securityStrategyProvider，UnitOfWork& result_parentSession，ISecurityRule& result_parentSession，布尔DevExpress.ExpressApp.Security.ClientServer.SecuredSerializableObjectLayer.CreateSerializableObjectLayerCore(IClientInfo)( DevExpress.ExpressApp.Security.ClientServer.SecuredSerializableObjectLayer.GetSerializableObjectLayer(IClientInfo，( DevExpress.ExpressApp.Security.ClientServer.SecuredSerializableObjectLayerBase.DevExpress.ExpressApp.Security.ClientServer.ISecuredSerializableObjectLayer.LoadObjects(IClientInfo clientInfo上的UnitOfWork& result_parentSession(UnitOfWork& result_parentSession)，System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage md上的XPDictionaryStub字典，ObjectStubsQuery[]查询)，System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg上的Object[] args，对象服务器，Object[]& outArgs) )

异常重新引发于: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg，IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData，Int32 type) at DevExpress.ExpressApp.Security.ClientServer.ISecuredSerializableObjectLayer.LoadObjects(IClientInfo clientInfo，XPDictionaryStub字典，ObjectStubsQuery[]查询)在DevExpress.Xpo.SerializableObjectLayerClient.LoadObjects(Session会话中，( DevExpress.Xpo.Logger.LogManager.LogT at DevExpress.Xpo.Session.GetObjects(ObjectsQuery查询) at DevExpress.Xpo.Session.GetObjects(XPClassInfo classInfo，CriteriaOperator准则，SortingCollection排序，Int32 topSelectedRecords，布尔selectDeleted，布尔力) at DevExpress.Xpo.Helpers.XPObjectTypesManager.GetAllTypes() at DevExpress.Xpo.Session.<>c__DisplayClass3a.b__38() at DevExpress.Xpo.Logger.LogManager.LogT at DevExpress.Xpo.Session.GetObjectByKey(键入classType，( DevExpress.ExpressApp.Xpo.XPObjectSpace.GetObjectByKey(Type objectType，Object key) at DevExpress.ExpressApp.Security.ClientServer.ServerSecurityClient.get_User() at Xpand.ExpressApp.ModelDifference.DataStore.Queries.QueryUserModelDifferenceObject.get_UsersContainsOperator() at Xpand.ExpressApp.ModelDifference.DataStore.Queries.QueryUserModelDifferenceObject.GetActiveModelDifferences(String applicationName，字符串名称

Answer 1

远程处理是相当老的技术，因此E4035演示程序不会经常更新或测试。相反，您可以使用E 4036-WCF演示程序，它是每个构建上的EasyTested。