WCF例外:既知のタイプのリストに追加できません
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28-09-2019 - |
質問
みなさん、良い一日を...
同様に名前が付けられている「既知のタイプ」に不満を言っている予期しないWCFエラーがありますが、異なる名前スペースにあります(以下のエラーを参照)。
...私はまだこのすべてを実験していることに留意してください。
また…
通常のWebサービスの性質は、オブジェクトの階層を平らにすることを強制していますが、私が読んだことはすべて、WCFでそれをする必要はないと言っています。だから私はこれを試みています。
だから私の質問は…
- Q:名前間隔を無視しないようにWCFに伝えることは可能ですか?
- Q:タグがありませんか? WCFタグ(下)は名前の間隔を考慮していませんか?
- Q:オブジェクトの階層を平らにする必要がありますか?
基本的なエラーは…
タイプ 'wcffish.statemanagement.contractor.new'は、別のタイプ 'wcffish.statemanagement.costdivision.new'から既知のタイプのリストに追加できません。
エラーは…
An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.InvalidOperationException: An exception was thrown in a call to a WSDL export extension: System.ServiceModel.Description.DataContractSerializerOperationBehavior
contract: http://tempuri.org/:IFishData ----> System.InvalidOperationException: Type 'wcfFISH.StateManagement.Contractor.New' cannot be added to list of known types since another type 'wcfFISH.StateManagement.CostDivision.New' with the same data contract name 'wcfFISH.StateManagement.Contractor:New' is already present.
at System.Runtime.Serialization.DataContract.CheckAndAdd(Type type, Dictionary`2 typesChecked, Dictionary`2& nameToDataContractTable)
at System.Runtime.Serialization.DataContract.ImportKnownTypeAttributes(Type type, Dictionary`2 typesChecked, Dictionary`2& knownDataContracts)
at System.Runtime.Serialization.DataContract.ImportKnownTypeAttributes(Type type)
at System.Runtime.Serialization.ClassDataContract.ClassDataContractCriticalHelper.get_KnownDataContracts()
at System.Runtime.Serialization.ClassDataContract.get_KnownDataContracts()
at System.Runtime.Serialization.DataContractSet.AddClassDataContract(ClassDataContract classDataContract)
at System.Runtime.Serialization.DataContractSet.Add(XmlQualifiedName name, DataContract dataContract)
at System.Runtime.Serialization.DataContractSet.AddClassDataContract(ClassDataContract classDataContract)
at System.Runtime.Serialization.DataContractSet.Add(XmlQualifiedName name, DataContract dataContract)
at System.Runtime.Serialization.DataContractSet.Add(Type type)
at System.Runtime.Serialization.XsdDataContractExporter.Export(Type type)
at System.ServiceModel.Description.MessageContractExporter.ExportType(Type type, String partName, String operationName, XmlSchemaType& xsdType)
at System.ServiceModel.Description.DataContractSerializerMessageContractExporter.ExportBody(Int32 messageIndex, Object state)
at System.ServiceModel.Description.MessageContractExporter.ExportMessage(Int32 messageIndex, Object state)
at System.ServiceModel.Description.MessageContractExporter.ExportMessageContract()
at System.ServiceModel.Description.DataContractSerializerOperationBehavior.System.ServiceModel.Description.IWsdlExportExtension.ExportContract(WsdlExporter exporter, WsdlContractConversionContext contractContext)
at System.ServiceModel.Description.WsdlExporter.CallExtension(WsdlContractConversionContext contractContext, IWsdlExportExtension extension)
--- End of inner ExceptionDetail stack trace ---
at System.ServiceModel.Description.WsdlExporter.CallExtension(WsdlContractConversionContext contractContext, IWsdlExportExtension extension)
at System.ServiceModel.Description.WsdlExporter.CallExportContract(WsdlContractConversionContext contractContext)
at System.ServiceModel.Description.WsdlExporter.ExportContract(ContractDescription contract)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoint(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoints(IEnumerable`1 endpoints, XmlQualifiedName wsdlServiceQName)
at System.ServiceModel.Description.ServiceMetadataBehavior.MetadataExtensionInitializer.GenerateMetadata()
at System.ServiceModel.Description.ServiceMetadataExtension.EnsureInitialized()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.InitializationData.InitializeFrom(ServiceMetadataExtension extension)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.GetInitData()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.TryHandleDocumentationRequest(Message httpGetRequest, String[] queries, Message& replyMessage)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.ProcessHttpRequest(Message httpGetRequest)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.Get(Message message)
at SyncInvokeGet(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
サービスコードは次のように見えます…
namespace wcfFISH.StateManagement
{
[DataContract(Namespace = "wcfFISH.StateManagement")]
[KnownType(typeof(wcfFISH.StateManagement.C1FE.Approved))]
[KnownType(typeof(wcfFISH.StateManagement.C1FE.Denied))]
[KnownType(typeof(wcfFISH.StateManagement.C1FE.New))]
[KnownType(typeof(wcfFISH.StateManagement.C1FE.Pending))]
[KnownType(typeof(wcfFISH.StateManagement.Contractor.Authenticated))]
[KnownType(typeof(wcfFISH.StateManagement.Contractor.New))]
[KnownType(typeof(wcfFISH.StateManagement.CostDivision.Authenticated))]
[KnownType(typeof(wcfFISH.StateManagement.CostDivision.New))]
[KnownType(typeof(wcfFISH.StateManagement.ReportingPeriod.Closed))]
[KnownType(typeof(wcfFISH.StateManagement.ReportingPeriod.Open))]
public abstract class ObjectState
{
#region CONSTRUCTORS
protected ObjectState()
{ }
#endregion
#region PROPERTIES & FIELDS
#endregion
#region EVENTS
#endregion
#region METHODS
#endregion
}
}
サイドノート…
私が混乱しているもう一つの理由は、以下にリストされた元の宣言が問題を引き起こしたことはないことです...そしてそれは正常に機能していました!これは、CostDivisionを追加したときにのみ発生しました!
[KnownType(typeof(wcfFISH.StateManagement.C1FE.New))]
[KnownType(typeof(wcfFISH.StateManagement.Contractor.New))]
私がはっきりしていない場合に備えて…
私の理解は、WCFが次のクラスの違いを理解する必要があることです。
[KnownType(typeof(wcfFISH.StateManagement.Contractor.Authenticated))]
[KnownType(typeof(wcfFISH.StateManagement.Contractor.New))]
[KnownType(typeof(wcfFISH.StateManagement.CostDivision.Authenticated))]
[KnownType(typeof(wcfFISH.StateManagement.CostDivision.New))]
理解できない場合…
私の唯一の選択肢は、すべての階層を平らにすることだと思います。
wcfFISH.StateManagement.Authenticated
wcfFISH.StateManagement.New
…これは私の唯一の選択肢ですか? (希望しない!)
解決
私の精神的な力は、あなたのwcffish.statemanagement.costdivision.newの宣言はwcffish.statemanagement.contractor.newからコピー/貼り付けられたことを教えてくれます。
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