使用C#从xml文件获取值

Question

我是xml的新手,我不知道如何从xml文件中读取/获取值:

<?xml version="1.0" encoding="utf-8" ?>
<Jeopardy>
  <category name = 'People in Computing'>
<first points = '100' answer = 'Alan Turing'>Known as the questioner of the human   mind, this man is known for helping tell humans and computers apart.</first>
<second points = '200' answer = 'Grace Hopper'>This female pioneer of the COBOL computer programming language was an Admiral in the US Navy.</second>
<third points = '300' answer = 'Tim Berners-Lee'>Called the father of the world wide web, this man is the director of the W3C.</third>
<fourth points = '400' answer = 'Lawrence Lessig'>An American academic and political activist who founded the Creative Commons, this man lobbies for reduced legal restrictions on copyrights and trademarks in the technology sector.</fourth>
<fifth points = '500' answer = 'Ada Lovelace'>This woman, known as the world's first computer programmer was also a Countess.</fifth>
  </category>
</Jeopardy>

抱歉可怕的格式化,无法做到正确.

首先,我试图在XDocument结果中加载此文件,"非白色空间无法添加到内容"异常,但如果加载到XmlDocument中则不会发生.

我的代码试图获取名称值:

        string fileName = @"C:\Users\Kara\documents\visual studio 2010\Projects\Final Project\Final Project\Jeopardy.xml";

        XmlDocument doc = new XmlDocument();

        doc.Load(fileName);

        List<string> categories = new List<string>();

        XmlNodeList nList = doc.SelectNodes("/category/name");

        foreach (XmlNode node in nList)
        {
            categories.Add(node.ToString());
        }

可悲的是,调试nList的计数为零,我无法弄清楚原因.我已经尝试过在这里看到很多问题和其他地方的教程,我只是感到沮丧.我如何从名称和其他节点中获取值？有人可以解释一下吗？也许为什么我用XDocument得到非空格错误？

Answer 1

doc.SelectNodes("/category/name")

您没有找到任何节点,因为1)第一个节点是Jeopardy,而不是category2)name是类别的属性而不是子元素.

尝试: doc.SelectNodes("/Jeopardy/category/@name")

像这样:

foreach (XmlNode node in nList) {
  categories.Add(node.Value);
}