使用名称空间和XPath时找不到节点 [英] Cannnot find node when using namespace and XPath

问题描述

谢谢塔伦(Tarun).我有更多问题.如果我想添加新节点或更新现有节点或删除节点，那么如何使用csharp代码完成呢?

Thanks Tarun.I got it.I have more questions.If i want to add a new node or update an existing node or delete a node then how can it be done using csharp code?

- <GovTalkMessage xmlns="http://www.govtalk.gov.uk/CM/envelope">
  <EnvelopeVersion>2.0</EnvelopeVersion>
- <Header>
- <MessageDetails>
  <Class>HMRC-VAT-DEC</Class>
  <Qualifier>Request</Qualifier>
  <Function>submit</Function>
  <CorrelationID />
  <Transformation>XML</Transformation>
  </MessageDetails>

推荐答案

您可以尝试以下一种方法:

You can try this one :

XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(yourxmldocumenthere);
XmlNodeList xmlNodeQualifier = xmlDocument.GetElementsByTagName("Qualifier");
string strQualifier = xmlNodeList.Item(0).InnerText;

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