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Powershell: XPath cannot select when element has “xmlns” tag?

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问题 I've got a very simple xml, as below: <?xml version="1.0" encoding="utf-8"?> <First> <Second> <Folder>today</Folder> <FileCount>10</FileCount> </Second> <Second> <Folder>tomorrow</Folder> <FileCount>90</FileCount> </Second> <Second> <Folder>yesterday</Folder> <FileCount>22</FileCount> </Second> </First> Then I have a powershell script to select "Folder" element: [xml]$xml=Get-Content "D:\m.xml" $xml.SelectNodes("//Folder") It outputs: #text ----- today tomorrow yesterday No problem. But if I

What is the syntax for accessing child nodes using System.Xml.XmlDocument.SelectNodes with a namespace?

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问题 Given the following XML: <?xml version="1.0" encoding="UTF-8"?> <Task version="1.3" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task"> <RegistrationInfo> <Date>2014-12-03T13:58:05.5136628</Date> <Author>ABCCORP\jsmith</Author> </RegistrationInfo> </Task> I can access the Task node using SelectNodes as follows: [xml]$xml = gc C:\temp\myxml.xml $ns = new-object Xml.XmlNamespaceManager $xml.NameTable $ns.AddNamespace("ns0", "http://schemas.microsoft.com/windows/2004/02/mit/task")

Use XPath with XML namespace

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问题 I want to process the xml below with XPath: <?xml version="1.0" encoding="utf-8"?> <ServiceConfiguration serviceName="Cloud" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="4" osVersion="*" schemaVersion="2014-01.2.3"> <Role name="Worker"> <Instances count="2" /> <ConfigurationSettings> <Setting name="setting1" value="value1" /> <Setting name="setting2" value="value2" /> </ConfigurationSettings> <Certificates> </Certificates> </Role> <

SelectSingleNode returns null even with namespace managing

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问题 I've come from this question, where my first issue was solved: XML Select a single node where the names are repeating It was a namespace issue first. But now even with the corect NameSpace managing my XPath still returns me null. I've also checked: SelectSingleNode return null - even with namespace SelectSingleNode always returns null? XmlDocument.SelectSingleNode and xmlNamespace issue SelectSingleNode returning null for known good xml node path using XPath Why is SelectSingleNode returning

SelectSingleNode returns null even with namespace managing

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SelectNodes does not return the child values

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问题 I am new to XPath. I read the entire W3Schools tutorial. I would like to get all the <schedule> nodes of my document. I can get all the child elements of my document with child::* but as soon as I add <schedule> like the following, I get zero results: XmlDocument dom = new XmlDocument(); dom.Load(textBoxFilePath.Text); XmlNodeList jobElements = dom.DocumentElement.SelectNodes("child::schedule"); This is my xml: <?xml version="1.0" encoding="UTF-8"?> <!-- This file contains job definitions in

Null return on XmlDocument.SelectSingleNode through valid xpath

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问题 I currently have the following code nsmgr = new XmlNamespaceManager(xmlDoc.NameTable); nsmgr.AddNamespace("soapenv", soapenv_namespace); nsmgr.AddNamespace("de", de_namespace); XmlNode xnEnvelope = xmlDoc.SelectSingleNode("//soapenv:Envelope", nsmgr); XmlNode xnBody = xmlDoc.SelectSingleNode("//soapenv:Envelope/soapenv:Body", nsmgr); XmlNode xnMessage = xnBody.SelectSingleNode("//soapenv:Envelope/soapenv:Body/message", nsmgr); Which parses the following xml (truncated for readibility) <?xml

SelectSingleNode returns null even with namespace managing

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I've come from this question, where my first issue was solved: XML Select a single node where the names are repeating It was a namespace issue first. But now even with the corect NameSpace managing my XPath still returns me null. I've also checked: SelectSingleNode return null - even with namespace SelectSingleNode always returns null? XmlDocument.SelectSingleNode and xmlNamespace issue SelectSingleNode returning null for known good xml node path using XPath Why is SelectSingleNode returning null? But none of 'em helped me. I'm stuck for some hours on this issue. What is wrong with it ? Thanks

Use XPath with XML namespace

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I want to process the xml below with XPath: <?xml version="1.0" encoding="utf-8"?> <ServiceConfiguration serviceName="Cloud" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="4" osVersion="*" schemaVersion="2014-01.2.3"> <Role name="Worker"> <Instances count="2" /> <ConfigurationSettings> <Setting name="setting1" value="value1" /> <Setting name="setting2" value="value2" /> </ConfigurationSettings> <Certificates> </Certificates> </Role> </ServiceConfiguration> Tere's a xmlns for the root element. My code is this: XElement doc = XElement.Load(xmlFilePath)

XPath and namespace specification for XML documents with an explicit default namespace

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I'm struggling to get the correct combination of an XPath expression and the namespace specification as required by package XML (argument namespaces ) for a XML document that has an explicit xmlns namespace defined at the top element. UPDATE Thanks to har07 I was able to put it together: Once you query the namespaces, the first entry of ns has no name yet and that's the problem: nsDefs <- xmlNamespaceDefinitions(doc) ns <- structure(sapply(nsDefs, function(x) x$uri), names = names(nsDefs)) > ns omegahat r "http://something.org" "http://www.omegahat.org" "http://www.r-project.org" So we'll just