C# XMLNodeList未填充

这是我的XML，它实际上是一个InfoPath表单，在附件节点中有一个word文档附件-但是为了更好的可读性，我删除了代码

<?xml version="1.0" encoding="UTF-8"?><?mso-infoPathSolution solutionVersion="1.0.0.527" productVersion="14.0.0" PIVersion="1.0.0.0" href="http://intranet/workspace/departments/IT/fakehomepage/Testing/Forms/template.xsn" name="urn:schemas-microsoft-com:office:infopath:Testing:-myXSD-2011-11-22T09-08-23" ?><?mso-application progid="InfoPath.Document" versionProgid="InfoPath.Document.3"?><?mso-infoPath-file-attachment-present?><my:Template xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapEnc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:dfs="http://schemas.microsoft.com/office/infopath/2003/dataFormSolution" xmlns:tns="http://www.sourcecode.co.za/webservices/RuntimeServices" xmlns:d="http://schemas.microsoft.com/office/infopath/2003/ado/dataFields" xmlns:pc="http://schemas.microsoft.com/office/infopath/2007/PartnerControls" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:ma="http://schemas.microsoft.com/office/2009/metadata/properties/metaAttributes" xmlns:ns1="http://schemas.microsoft.com/office/infopath/2009/WSSList/dataFields" xmlns:q="http://schemas.microsoft.com/office/infopath/2009/WSSList/queryFields" xmlns:dms="http://schemas.microsoft.com/office/2009/documentManagement/types" xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2011-11-22T09:08:23" xmlns:xd="http://schemas.microsoft.com/office/infopath/2003" xml:lang="en-za">
    <my:scn1>
        <my:Attachment>the raw source-removed for space saving</my:Attachment>
        <my:DataValue>Hello-2013-07-04T09:05:50</my:DataValue>
    </my:scn1>
    <my:scn2></my:scn2>
    <my:scn3></my:scn3>
    <my:scn4></my:scn4>
    <my:scnSubmit></my:scnSubmit>
    <my:scnHideMe></my:scnHideMe>
</my:Template>

我也试过了

 XmlNodeList nl = myDoc.SelectNodes("//my:scn1");

我需要得到原始的来源，所以我可以解码和保存word文档。

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在此处输入代码

要使名称空间工作，需要使用

XmlNamespaceManager

XmlDocument myDoc = new XmlDocument();
myDoc.Load(@"Form.xml");
XmlNamespaceManager xmlNsMgr = new XmlNamespaceManager(myDoc.NameTable);
xmlNsMgr.AddNamespace("my", myDoc.DocumentElement.NamespaceURI);
XmlNodeList nl = myDoc.SelectNodes("//my:Attachment", xmlNsMgr);

使用此选项，将填充

nl

XmlDocument myDoc = new XmlDocument();
myDoc.Load(@"Form.xml");
XmlNamespaceManager xmlNsMgr = new XmlNamespaceManager(myDoc.NameTable);
xmlNsMgr.AddNamespace("my", myDoc.DocumentElement.NamespaceURI);
XmlNodeList nl = myDoc.SelectNodes("//my:Attachment", xmlNsMgr);