接口中的“@string TransactionID”实现如何写？

[System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "2.0.50727.42")]
[System.Web.Services.WebServiceBindingAttribute(Name="maPortBinding", Namespace="http://www.monternet.com/dsmp/wsdl/")]
public interface IMaPortBinding {


    @string TransactionID
    {
        get;
        set;
    }
    
    /// <remarks/>
    [System.Web.Services.Protocols.SoapHeaderAttribute("TransactionID", Direction=System.Web.Services.Protocols.SoapHeaderDirection.InOut)]
    [System.Web.Services.WebMethodAttribute()]
    [System.Web.Services.Protocols.SoapDocumentMethodAttribute("sim.SyncOrderRelation", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Bare)]
    [return: System.Xml.Serialization.XmlElementAttribute("SyncOrderRelationResp", Namespace="http://www.monternet.com/dsmp/schemas/")]
    SyncOrderRelationRespType SyncOrderRelation([System.Xml.Serialization.XmlElementAttribute(Namespace="http://www.monternet.com/dsmp/schemas/")] SyncOrderRelationReqType SyncOrderRelationReq);
} --------------------编程问答-------------------- --------------------编程问答-------------------- 楼主以后发帖不要光贴代码。。。

补充：.NET技术 ,  Web Services