如何在XML文件中计算节点？ | 如何在XML文件中计算节点

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问题描述

我需要帮助计算XML文件中的用户数。示例XML文件可能如下所示

I need help count the number of users in the a XML file. The sample XML file may look like this

< Users>

<Users>

&NBSP;&NBSP; <用户>

<User>

< / User>

</User>

<用户>

<User>

< / User>

</User>

......

<用户>

<User>

< / User>

</User>

< / Users>

</Users>

所以我必须算上如何很多<用户>在XML 文件中？

So I have to count how many <User> in the XML file ?

推荐答案

Hi.Following is the Code Written in the Console Application which will solve your problem.
This Code will Display the Count of the child nodes under the DocumentElement.

using System;
using System.IO;
using System.Xml;

namespace UserCollection
{
  class Program
  {
    static int Main(string[] args)
    {
      string strFilename = "User.xml";
      XmlDocument xmlDoc = new XmlDocument();

      if (File.Exists(strFilename))
      {
        xmlDoc.Load(strFilename);
        XmlElement elm = xmlDoc.DocumentElement;
        XmlNodeList lstUsers = elm.ChildNodes;

        Console.WriteLine("The root element contains {0} nodes",
                 lstUsers.Count);
      }
      else
        Console.WriteLine("The file {0} could not be located",
                 strFilename);

      Console.WriteLine();
      return 0;
    }
  }
}

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