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c# - Web 服务方法 - 无法序列化，因为它没有无参数构造函数

coder 2024-06-25 原文

我已将 Web 引用添加到我的 .net 项目，其中包含第 3 方服务的方法。

当我尝试调用其中一种方法时，它期望传递 OrderIdentifier 对象，但它给我错误:

InvalidOperationException: <>f__AnonymousType0`3[System.DateTime,ETS_OpenAccessNew.ETS.DateRange,ETS_OpenAccessNew.ETS.AuctionIdentification] 无法序列化，因为它没有无参数构造函数。

我的代码如下:

        OrderIdentifier oi = new OrderIdentifier
        {
            area = testArea,
            portfolio = testPortfolio
        };

        DateRange dr = new DateRange { from = DateTime.Today.AddDays(-7), to = DateTime.Today };
        var Ai = new AuctionIdentification
        {
            Item = DateTime.Today.AddDays(-1),
            ItemElementName = ItemChoiceType1.AuctionDate,
            name = "test",
            duration = AuctionIdentificationDuration.Item30min,
            durationSpecified = true
        };

        object items = new
        {
            deliveryDay = DateTime.Today.AddDays(-1),
            deliveryDays = dr,
            AuctionIdentification = Ai
        }; 

        oi.Items = new object[1] { items };
        var orders = oa.RetrieveOrders(oi);

被引用的类如下:

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class OrderIdentifier : IdentifiedOrder {
}

[System.Xml.Serialization.XmlIncludeAttribute(typeof(OrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Order))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrderIdentification))]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class IdentifiedOrder : AbstractOrderObject {

    private string areaField;

    private string portfolioField;

    private object[] itemsField;

    /// <remarks/>
    public string area {
        get {
            return this.areaField;
        }
        set {
            this.areaField = value;
        }
    }

    /// <remarks/>
    public string portfolio {
        get {
            return this.portfolioField;
        }
        set {
            this.portfolioField = value;
        }
    }

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("AuctionIdentification", typeof(AuctionIdentification))]
    [System.Xml.Serialization.XmlElementAttribute("deliveryDay", typeof(System.DateTime), DataType="date")]
    [System.Xml.Serialization.XmlElementAttribute("deliveryDays", typeof(DateRange))]
    public object[] Items {
        get {
            return this.itemsField;
        }
        set {
            this.itemsField = value;
        }
    }
}

/// <remarks/>
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Curve))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(IdentifiedOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(OrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Order))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrderIdentification))]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class AbstractOrderObject : OpenAccessAbstractObject {
}

/// <remarks/>
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MarketResultIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Broadcast))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderBatch))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionInformationQuery))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionDateTime))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AsynchronousResponseHeader))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaPortfolioInformationQuery))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MessageAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Messages))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MessageIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ClientMessage))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MarketResult))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrderIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyPeriod))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CurvePoint))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AbstractOrderObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Curve))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(IdentifiedOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(OrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Order))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrderIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaAuctionIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaPortfolioInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AsynchronousNotification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ExclusiveGroupIndexToIdMapping))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockIndexToIdMapping))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockPeriod))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SmartBlockOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SmartBlockOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderForBatch))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ErrorObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Acknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(UserLogoutAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SetNewPasswordAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SetMessagesAsReadAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradeableAreaSetsAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveSmartBlockOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveMessagesAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveMarketResultAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveHourlyOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveComplexOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveBlockOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAuctionInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreaPortfolioInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreaInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ReportRelayServerErrorResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ReportRelayErrorResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RemoveReverseConnectionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RegisterUserOnServerResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RegisterForAsyncEventsResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ProcessAsynchronousNotificationResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(LogoutAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(GetNotificationsResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EstablishSessionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EstablishReverseConnectionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterHourlyOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterComplexOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterBlockOrderBatchAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterBlockOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(DeRegisterUserOnServerResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelHourlyOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelComplexOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelBlockOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BroadcastAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AcceptNotificationResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrievePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveViewablePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradablePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveBlocksAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveExclusiveGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveViewableAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradableAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelBlockAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelExclusiveGroupAcknowledgement))]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class OpenAccessAbstractObject : DomainObject {
    public OpenAccessAbstractObject() { }
}

[System.Xml.Serialization.XmlIncludeAttribute(typeof(ResponseLimitationHeader))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(OpenAccessAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MarketResultIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Broadcast))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderBatch))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionInformationQuery))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionDateTime))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AsynchronousResponseHeader))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaPortfolioInformationQuery))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MessageAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Messages))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MessageIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ClientMessage))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(MarketResult))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrderIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyPeriod))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(HourlyOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CurvePoint))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AbstractOrderObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Curve))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(IdentifiedOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(OrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Order))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrderIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ComplexOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaAuctionIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaPortfolioInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AreaInformation))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AsynchronousNotification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ExclusiveGroupIndexToIdMapping))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockIndexToIdMapping))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AuctionIdentification))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderIdentifier))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockPeriod))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SmartBlockOrderAbstractObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SmartBlockOrder))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BlockOrderForBatch))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ErrorObject))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(Acknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(UserLogoutAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SetNewPasswordAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(SetMessagesAsReadAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradeableAreaSetsAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveSmartBlockOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveMessagesAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveMarketResultAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveHourlyOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveComplexOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveBlockOrdersAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAuctionInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreaPortfolioInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreaInformationAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ReportRelayServerErrorResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ReportRelayErrorResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RemoveReverseConnectionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RegisterUserOnServerResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RegisterForAsyncEventsResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(ProcessAsynchronousNotificationResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(LogoutAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(GetNotificationsResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EstablishSessionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EstablishReverseConnectionResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterHourlyOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterComplexOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterBlockOrderBatchAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(EnterBlockOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(DeRegisterUserOnServerResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelHourlyOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelComplexOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelBlockOrderAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(BroadcastAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(AcceptNotificationResponse))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrievePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveViewablePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradablePortfoliosAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveBlocksAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveExclusiveGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveViewableAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(RetrieveTradableAreasAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelBlockAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelGroupAcknowledgement))]
[System.Xml.Serialization.XmlIncludeAttribute(typeof(CancelExclusiveGroupAcknowledgement))]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class DomainObject : System.Web.Services.Protocols.SoapHeader {
}    


[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.7.3130.0")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="urn:openaccess")]
public partial class AuctionIdentification : OpenAccessAbstractObject {

    public AuctionIdentification(){}

    private System.DateTime itemField;

    private ItemChoiceType1 itemElementNameField;

    private string nameField;

    private AuctionIdentificationDuration durationField;

    private bool durationFieldSpecified;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("AuctionDate", typeof(System.DateTime), DataType="date")]
    [System.Xml.Serialization.XmlElementAttribute("UTCDateTime", typeof(System.DateTime))]
    [System.Xml.Serialization.XmlChoiceIdentifierAttribute("ItemElementName")]
    public System.DateTime Item {
        get {
            return this.itemField;
        }
        set {
            this.itemField = value;
        }
    }

    /// <remarks/>
    [System.Xml.Serialization.XmlIgnoreAttribute()]
    public ItemChoiceType1 ItemElementName {
        get {
            return this.itemElementNameField;
        }
        set {
            this.itemElementNameField = value;
        }
    }

    /// <remarks/>
    public string name {
        get {
            return this.nameField;
        }
        set {
            this.nameField = value;
        }
    }

    /// <remarks/>
    public AuctionIdentificationDuration duration {
        get {
            return this.durationField;
        }
        set {
            this.durationField = value;
        }
    }

    /// <remarks/>
    [System.Xml.Serialization.XmlIgnoreAttribute()]
    public bool durationSpecified {
        get {
            return this.durationFieldSpecified;
        }
        set {
            this.durationFieldSpecified = value;
        }
    }
}


//Retrieve Orders
[System.Web.Services.Protocols.SoapHeaderAttribute("SessionTokenValue")]
    [System.Web.Services.Protocols.SoapHeaderAttribute("ResponseLimitationHeaderValue", Direction=System.Web.Services.Protocols.SoapHeaderDirection.InOut)]
    [System.Web.Services.Protocols.SoapRpcMethodAttribute("RetrieveOrders", RequestNamespace="urn:openaccess", ResponseNamespace="urn:openaccess", Use=System.Web.Services.Description.SoapBindingUse.Literal)]
    public RetrieveOrdersAcknowledgement RetrieveOrders(OrderIdentifier OrderIdentifier) {
        object[] results = this.Invoke("RetrieveOrders", new object[] {
                    OrderIdentifier});
        return ((RetrieveOrdersAcknowledgement)(results[0]));
    }

任何关于我在这里做错的想法都将不胜感激

更新 - 我现在已将无参数构造函数包含到 AuctionIdentification 类中，但仍然出现相同的错误

最佳答案

异常消息告诉您您正在尝试序列化包含 DateTime、DateRange 和 AuctionIdentification 的匿名类型> 属性和匿名类型确实没有无参数构造函数(它们是不可变的，因此它们的成员是通过构造函数参数初始化的)。

有问题的匿名类型在此处创建并分配给 items 变量:

object items = new // <--
{
    deliveryDay = DateTime.Today.AddDays(-1),
    deliveryDays = dr,
    AuctionIdentification = Ai
};

oi.Items = new object[1] { items };

根据Items属性定义

[System.Xml.Serialization.XmlElementAttribute("AuctionIdentification", typeof(AuctionIdentification))]
[System.Xml.Serialization.XmlElementAttribute("deliveryDay", typeof(System.DateTime), DataType="date")]
[System.Xml.Serialization.XmlElementAttribute("deliveryDays", typeof(DateRange))]
public object[] Items {
    get {
        return this.itemsField;
    }
    set {
        this.itemsField = value;
    }
}

它是一个 object 数组，其中每个 object 的实际类型可能是描述的 3 种类型之一 - DateTime， DateRange 和 AuctionIdentification。

有点奇怪的设计，但那是第 3 方服务的错，而不是你的错。在你的情况下正确的初始化(这也应该修复有问题的异常)应该是直接填充数组:

oi.Items = new object[] // <--
{
    DateTime.Today.AddDays(-1), // deliveryDay
    dr, // deliveryDays
    Ai // AuctionIdentification
};

关于c# - Web 服务方法 - 无法序列化，因为它没有无参数构造函数，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51766957/

c#有无XmlIncludeAttributeSerializationSystemxml

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