C＃如何提取完整的XML节点集 [英] C# How to extract complete xml node set

问题描述

<?xml version="1.0" encoding="ISO-8859-1"?>
 <bookstore>
  <book category="COOKING"> 
    <title lang="en">Everyday Italian</title>
    <author>Giada De Laurentiis</author>    
    <year>2005</year>
   <price>30.00</price>
  </book>

  <book category="CHILDREN">
   <title lang="en">Harry Potter</title>
   <author>J K. Rowling</author>
   <year>2005</year>
   <price>29.99</price>
  </book>

  <book category="WEB">
   <title lang="en">XQuery Kick Start</title>
   <author>James McGovern</author>
   <author>Per Bothner</author>
   <author>Kurt Cagle</author>
   <author>James Linn</author>
   <author>Vaidyanathan Nagarajan</author>
   <year>2003</year>
   <price>49.99</price>
  </book>

  <book category="WEB">
   <title lang="en">Learning XML</title>
   <author>Erik T. Ray</author>
   <year>2003</year>
   <price>39.95</price>
  </book>

</bookstore>

时的任何方式使用XPath来选择完整的第一个节点集，例如来自

Is their any way using XPath to select the complete first node set, for example from

 <book category="COOKING">  
  to 
 </book>,

这样，那大块XML可以存储供以后使用。

so that, that chunk of xml can be stored for later use.

鲍勃。

推荐答案

比方说，这个XML存储在的XmlDocument 名为商务部。

Let's say this XML is stored in an XmlDocument called doc.

XmlElement docRoot = doc.DocumentElement;
XmlNode cookingNode = docRoot.SelectSingleNode("./book[@category='COOKING']");

我测试了这一点，并添加了此行来验证：

I tested this and added this line to verify:

Console.WriteLine(cookingNode.OuterXml);

下面是输出：

<book category="COOKING"><title lang="en">Everyday Italian</title><author>Giada
De Laurentiis</author><year>2005</year><price>30.00</price></book>

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