WSDL中没有显示WCF MessageContract属性。

Question

我定义了一个MessageContract，以便通过WCF传输一个Stream和一些其他数据：

[MessageContract]
public class DTSetGeotagImageMessage
{
    [MessageHeader(MustUnderstand = true)]
    public DTGeotagImageFileInfo GeotagImageFileInfo;

    [MessageBodyMember(Order = 1)]
    public Stream FileData;
}

public class DTGeotagImageFileInfo
{ //All these properties are not showing up in the WSDL:
    public long? GeotagID { get; internal set; }
    public string GeotagGuid { get; internal set; }
    public string ImageGuid { get; internal set; }
    public long GeotagFieldId { get; internal set; }
    public double Lat { get; internal set; }
    public double Lon { get; internal set; }
}

WSDL：

<xs:complexType name="DTGeotagImageFileInfo">
 <xs:sequence/>
</xs:complexType>
<xs:element name="DTGeotagImageFileInfo" nillable="true" type="tns:DTGeotagImageFileInfo"/>

但是头数据类的属性并没有显示在WSDL文件中。我怎么才能让他们出现？

Answer 1

DataContracts/DataMembers上的服务约定访问修饰符不起任何作用。.NET设置器和getter可见修饰符在处理WCF消息时与它们无关，只要您相应地标记它们：

//Tag DataContract and DataMember for serialization
[DataContract]
public class DTGeotagImageFileInfo
{ 
    [DataMember]
    public long? GeotagID { get; internal set; }
    [DataMember]
    public string GeotagGuid { get; internal set; }
    [DataMember]
    public string ImageGuid { get; internal set; }
    [DataMember]
    public long GeotagFieldId { get; internal set; }
    [DataMember]
    public double Lat { get; internal set; }
    [DataMember]
    public double Lon { get; internal set; }
}

Answer 2

结果表明，MessageContract属性必须有一个public设置程序才能被生成代码的代码所看到：

public class DTGeotagImageFileInfo
{
    public long? GeotagID { get; set; }
    public string GeotagGuid { get; set; }
    public string ImageGuid { get; set; }
    public long GeotagFieldId { get; set; }
    public double Lat { get; set; }
    public double Lon { get; set; }
}

WSDL：

<xs:complexType name="DTGeotagImageFileInfo">
    <xs:sequence>
     <xs:element minOccurs="0" name="GeotagFieldId" type="xs:long"/>
     <xs:element minOccurs="0" name="GeotagGuid" nillable="true" type="xs:string"/>
     <xs:element minOccurs="0" name="GeotagID" nillable="true" type="xs:long"/>
     <xs:element minOccurs="0" name="ImageGuid" nillable="true" type="xs:string"/>
     <xs:element minOccurs="0" name="Lat" type="xs:double"/>
     <xs:element minOccurs="0" name="Lon" type="xs:double"/>
    </xs:sequence>
   </xs:complexType>
   <xs:element name="DTGeotagImageFileInfo" nillable="true"
       type="tns:DTGeotagImageFileInfo"/>