Web Service方法-无法序列化，因为它没有无参数的构造函数

时间：2018-08-09 12:24:30

标签： c# xml serialization

我在.net项目中添加了一个Web引用，其中包含用于第三方服务的方法。

当我尝试调用其中一种方法时，它希望传递一个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。 < / strong>

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);

所引用的类如下：

[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事情的想法都将受到赞赏

更新-我现在将无参数构造函数包括在AuctionIdentification类中，但是仍然出现相同的错误

2 个答案:

答案 0 :(得分：7)

该异常消息告诉您，您正在尝试序列化包含DateTime，DateRange和AuctionIdentification属性的匿名类型，而匿名类型的确没有无参数构造函数（它们是不可变的，因此它们的成员通过构造函数参数进行初始化）。

在这里创建有问题的匿名类型并将其分配给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object的数组，其中每个object的实际类型可以是所描述的3种类型之一-DateTime，DateRange和{{1 }}。

那种奇怪的设计，但这是第三方服务的错，而不是您的错。在您的情况下，正确的初始化（这也应该解决相关异常）应该是直接填充数组：

AuctionIdentification

答案 1 :(得分：0)

问题出在这一行：

 DateRange dr = new DateRange { from = DateTime.Today.AddDays(-7), to = DateTime.Today };

您正在尝试创建DateRange()的新实例，但它不接受您的初始化，并指出您无法初始化该类，因为该类没有提供较少的参数构造函数，因为您未提供任何构造函数。

此类的一个很好的例子是：

DateRange range = new DateRange(fromDate, toDate, CultureInfo);

如果您想通过匿名类型初始化类，请使用以下命令：

或：

return new DateRange 
{
    from = DateTime.Today.AddDays(-7),
    to = DateTime.Today
};
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