阅读与XDOC

Question

我想读以下文件（部分提交）

<?xml version="1.0" encoding="utf-8"?> 
<asmv1:assembly xsi:schemaLocation="urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd" 
manifestVersion="1.0" 
xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" 
xmlns:dsig="http://www.w3.org/2000/09/xmldsig#" 
xmlns:co.v1="urn:schemas-microsoft-com:clickonce.v1" 
xmlns:co.v2="urn:schemas-microsoft-com:clickonce.v2" 
xmlns="urn:schemas-microsoft-com:asm.v2" 
xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" 
xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" 
xmlns:xrml="urn:mpeg:mpeg21:2003:01-REL-R-NS" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
    <assemblyIdentity name="program.application" version="4.0.0.27077" publicKeyToken="8f99fe9fddfae125e" language="neutral" processorArchitecture="msil" xmlns="urn:schemas-microsoft-com:asm.v1" /> 

我

Dim manifestFile As String = webClient.DownloadString(location) 
Dim xdoc As New Xml.XmlDocument() 
xdoc.LoadXml(manifestFile) 

我已经试过

xdoc.SelectSingleNode("//asmv1:assemblyIdentity") 
xdoc.SelectSingleNode("//assemblyIdentity") 

Dim nsSys As Xml.XmlNamespaceManager = New Xml.XmlNamespaceManager(xdoc.NameTable) 
nsSys.AddNamespace("def", "urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd") 
xdoc.SelectSingleNode("//asmv1:assemblyIdentity",ns) 
xdoc.SelectSingleNode("//assemblyIdentity",ns) 
xdoc.SelectSingleNode("//def:assemblyIdentity",ns) 

所有返回Nothing一个xml文件

Wh at是否正确选择<assemblyIdentity>节点？

注意，我不能使用LinqToXml

谢谢

Answer 1

假设我关闭该标签 - 文件看起来像这样：

<?xml version="1.0" encoding="utf-8"?> 
    <asmv1:assembly xsi:schemaLocation="urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" xmlns:dsig="http://www.w3.org/2000/09/xmldsig#" xmlns:co.v1="urn:schemas-microsoft-com:clickonce.v1" xmlns:co.v2="urn:schemas-microsoft-com:clickonce.v2" xmlns="urn:schemas-microsoft-com:asm.v2" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xrml="urn:mpeg:mpeg21:2003:01-REL-R-NS" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
     <assemblyIdentity name="program.application" version="4.0.0.27077" publicKeyToken="8f99fe9fddfae125e" language="neutral" processorArchitecture="msil" xmlns="urn:schemas-microsoft-com:asm.v1" /> 
    </asmv1:assembly> 

对我来说，以下工作：

Dim doc As New XmlDocument() 
Dim nsmgr As New XmlNamespaceManager(doc.NameTable) 

doc.Load("c:\temp\temp2.xml") 
nsmgr.AddNamespace("asmv1", "urn:schemas-microsoft-com:asm.v1") 

Dim node As XmlNode = doc.SelectSingleNode("//asmv1:assemblyIdentity", nsmgr) 
MessageBox.Show(node.OuterXml) 

并返回：

<assemblyIdentity name="program.application" version="4.0.0.27077" publicKeyToken="8f99fe9fddfae125e" language="neutral" processorArchitecture="msil" xmlns="urn:schemas-microsoft-com:asm.v1" /> 

<assemblyIdentity>节点引用了asmv1命名空间，所以这就是需要添加到XMLNamespaceManager的那个节点