WCF和验证应用程序块:无法自定义错误消息?

时间:2010-09-13 13:33:12

标签: vb.net wcf validation enterprise-library

将WCF与Enterprise Library 5.0的验证应用程序块一起使用时,是否可以自定义发送回客户端的错误消息?

我已将ValidationBehaviour属性添加到我的服务合约中,并将FaultContract属性添加到操作中:

<ServiceContract()> _
<ValidationBehavior()> _
Public Interface IContract

    <OperationContract(), FaultContract(GetType(ValidationFault))> _
    Function GetCustomers(ByVal criteria As CustomersSearchCriteria) As List(Of Customer)

End Interface

然后,在CustomersSearchCriteria中,我添加了验证属性:

<Validators.StringLengthValidator(1, 3, ErrorMessage:="here's my error", Tag:="551")> _
Public Property Pin() As String
    Get
        Return _pin
    End Get
    Set(ByVal value As String)
        _pin = value
    End Set
End Property

但是当使用invalid参数调用时,返回的SOAP如下所示:

  <s:Fault>
     <faultcode>s:Client</faultcode>
     <faultstring xml:lang="fi-FI">The creator of this fault did not specify a Reason.</faultstring>
     <detail>
        <ValidationFault xmlns="http://www.microsoft.com/practices/EnterpriseLibrary/2007/01/wcf/validation" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
           <Details xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Practices.EnterpriseLibrary.Validation.Integration.WCF">
              <a:ValidationDetail>
                 <a:Key>Pin</a:Key>
                 <a:Message>The length of the value must fall within the range "1" (Inclusive) - "3" (Inclusive).</a:Message>
                 <a:Tag>criteria</a:Tag>
              </a:ValidationDetail>
           </Details>
        </ValidationFault>
     </detail>
  </s:Fault>

服务按原样返回ValidationFault,但它没有使用我定义的错误消息和标记,而是使用了一些通用值。这是一个错误还是我做错了什么?

1 个答案:

答案 0 :(得分:4)

我认为您需要使用MessageTemplate属性而不是ErrorMessage属性。尝试:

<Validators.StringLengthValidatorAttribute(1, 3, MessageTemplate:="here's my error", Tag:="551")> _