从Web服务响应中删除命名空间声明

我有一个Web服务,它返回一个简单的对象:

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "2.0.50727.4927")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.SoapTypeAttribute(Namespace="urn:CHAMADO")]
public partial class STRUCCHAMADOOUT : object, System.ComponentModel.INotifyPropertyChanged {

    private string cODField;

    private string mSGField;

    /// <remarks/>
    public string COD {
        get {
            return this.cODField;
        }
        set {
            this.cODField = value;
            this.RaisePropertyChanged("COD");
        }
    }

    /// <remarks/>
    public string MSG {
        get {
            return this.mSGField;
        }
        set {
            this.mSGField = value;
            this.RaisePropertyChanged("MSG");
        }
    }

    public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

    protected void RaisePropertyChanged(string propertyName) {
        System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
        if ((propertyChanged != null)) {
            propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
        }
    }
}

这个类是由wsdl.exe根据客户机提供的wsdl文件生成的。这是web方法:

[WebMethod(MessageName="CHAMADORequest")]
[SoapRpcMethod(
 Action = "urn:CHAMADO#CHAMADO",
 RequestNamespace = "urn:CHAMADO",
 RequestElementName = "CHAMADO",
 ResponseNamespace = "",
 ResponseElementName = "return",
 Use = SoapBindingUse.Literal
)]
[return: XmlElement("return")]
public STRUCCHAMADOOUT CHAMADO(STRUCCHAMADOIN ENTRADA)
{
    STRUCCHAMADOOUT result = new STRUCCHAMADOOUT();
    try {
        string str = Util.GetRequestXML();
        persist(getResult<Entidades.Chamado>(str, "ENTRADA", string.Empty));

        result.COD = "1";
        result.MSG = "Operação realizada com sucesso";
    } catch (Exception ex) {
        result.COD = "0";
        result.MSG = ex.Message + Environment.NewLine + ex.StackTrace;
    }

    return result;
}

客户机说他的系统正在引发一个错误,因为服务响应具有名称空间声明,如下所示:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?> 
<CHAMADOResponse xmlns="urn:CHAMADO" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    <return xmlns="">
        <COD xmlns="urn:CHAMADO">1</COD> 
        <MSG xmlns="urn:CHAMADO">Operação realizada com sucesso</MSG> 
    </return>
</CHAMADOResponse>

现在,我通过应用attriute从cod和msg中删除了名称空间。 WebServiceBinding(ConformsTo = WsiProfiles.None) 服务级别和设置 ResponseNamespace 空字符串。但是 CHAMADOResponse 仍然有名称空间声明。 我很确定不应该这样做。事实上,我根本不认为名称空间是问题所在。这个项目从一开始就很困难,因为我们必须创建与遗留wsdl匹配的服务。

我的问题是:有没有方法可以从web服务响应中删除所有的名称空间声明?

编辑

我已经记录了服务器的响应,得到了以下信息:

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
        <CHAMADOResponse>
            <return>
                <COD>1</COD>
                <MSG>Operação realizada com sucesso</MSG>
            </return>
        </CHAMADOResponse>
    </soap:Body>
</soap:Envelope>

消息正文中没有命名空间声明。但客户说他收到了这个:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!-- Request Message Mapping --> 
<CHAMADOResponse xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>
    <return>
        <COD>1</COD>
        <MSG>Operação realizada com sucesso</MSG>
    </return>
</CHAMADOResponse>

我是不是丢了什么东西?