Question

我尝试过以下代码：

PolicyProcessRequest.BranchCode = "HeadOff"
PolicyProcessRequest.Policy.BranchCode = "HeadOff"
PolicyProcessRequest.Policy.Risks.Item(0).BranchCode = "HeadOff"

Dim dcs As DataContractSerializer = New DataContractSerializer(GetType(PureMessagingService.PolicyProcessRequestType))

Dim ms As New MemoryStream()
dcs.WriteObject(ms, PolicyProcessRequest)

在调用WriteObject

时遇到以下异常

发现了System.Runtime.Serialization.SerializationException

HResult = -2146233076 Message =类型为Sirius.SBO.Import.PureMessagingService.BaseRequestType的成员BranchCode无法序列化。   此异常通常是由于尝试使用不允许空值的空值引起的。

'BranchCode'成员设置为其默认值（通常为null或零）。该成员的EmitDefault设置为“false”，表示该成员不应序列化。

但是，成员的IsRequired设置为“true”，表示必须将其序列化。这种冲突无法解决。考虑将“BranchCode”设置为非默认值。或者，您可以将DataMemberAttribute属性上的EmitDefaultValue属性更改为true，或将IsRequired属性更改为false。

然而，我已将'BranchCode'属性设置为请求中的任何位置的非默认值。

Public Class BaseNBQuoteRequestType

        Private agentCodeField As String

        Private branchCodeField As String

        Private currencyCodeField As CurrencyType

        Private currencyCodeFieldSpecified As Boolean

        Private itemField As BasePartyType

        Private policyField As BaseQuoteRiskMsgType

        Private updatePartyField As Boolean

        Public Property AgentCode() As String
            Get
                Return Me.agentCodeField
            End Get
            Set(ByVal value As String)
                Me.agentCodeField = value
            End Set
        End Property

        Public Property BranchCode() As String
            Get
                Return Me.branchCodeField
            End Get
            Set(ByVal value As String)
                Me.branchCodeField = value
            End Set
        End Property

        Public Property CurrencyCode() As CurrencyType
            Get
                Return Me.currencyCodeField
            End Get
            Set(ByVal value As CurrencyType)
                Me.currencyCodeField = value
            End Set
        End Property

        Public Property CurrencyCodeSpecified() As Boolean
            Get
                Return Me.currencyCodeFieldSpecified
            End Get
            Set(ByVal value As Boolean)
                Me.currencyCodeFieldSpecified = value
            End Set
        End Property

        Public Property Party() As BasePartyType
            Get
                Return Me.itemField
            End Get
            Set(ByVal value As BasePartyType)
                Me.itemField = value
            End Set
        End Property

        Public Property Policy() As BaseQuoteRiskMsgType
            Get
                Return Me.policyField
            End Get
            Set(ByVal value As BaseQuoteRiskMsgType)
                Me.policyField = value
            End Set
        End Property

    Public Property UpdateParty() As Boolean
        Get
            Return Me.updatePartyField
        End Get
        Set(ByVal value As Boolean)
            Me.updatePartyField = value
        End Set
        End Property
    End Class

Answer 1

我遇到了同样的问题，它来自用于生成代码的DataContractSerializer。我有其他服务使用XmlSerializer没有问题。

不幸的是，在Visual Studio中使用Svcutil.exe或“添加服务引用”功能生成客户端代码时，会自动为您选择合适的序列化程序。如果架构与DataContractSerializer不兼容，则选择XmlSerializer（source）。

因此，每次生成时都必须手动修复references.cs中的IsRequired设置。

替换

IsRequired=true

通过

IsRequired=false

在reference.cs文件中

。

无法使用DataContractSerializer序列化

1 个答案: