获取 XML 节点上的每个值

Question

I have an XML that looks like this:

<HiddenTopicsValues TopicCodes="TopicValues">
  <Topic>
    <Code>topic_aboutme</Code>
    <Value>1</Value>
  </Topic>
  <Topic>
    <Code>topic_aboutyou</Code>
    <Value>1</Value>
</HiddenTopicsValues>

My goal is to create a Dictionary that lets the <Code> act as the Key, and <Value> as the Value (of the Dictionary). I declared the dictionary as shown below:

Dictionary<string,int> dictionary_topics = new Dictionary<string,int>();

And used a for loop to iterate all the values in the XML:

    // Load XML Document
    XmlDocument xmlTopics = new XmlDocument();
    xmlTopics.Load(path);

    // Get All Hidden Topics
    XmlNodeList ndTopics = xmlTopics.GetElementsByTagName("Topic");

    for (int i = 0; i < ndTopics.Count; i++)
    {

        string _topicCode = ndTopics[i].InnerText[0].ToString();
        int _topicValue = ndTopics[i].InnerText[1].ToString();

        // Add Topic to Dictionary
        dictionary_topics.Add(_topicCode, _topicValue);
    }

I thought that this: ndTopics[i].InnerText[0] would return this: topic_aboutme
And this: ndTopics[0].InnerText[1] would return this: 1
Based on the given XML.

I tried displaying ndTopics[0].InnerText and it shows this:

topic_aboutme1

How can I separate the topic_aboutme(<Code>) and 1(<Value>) ?

Forgive my naiveness, I'm not really used in utilising XML.

Answer 1

Real easy in Xml Linq:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            Dictionary<string, string> dict = doc.Descendants("Topic")
                .GroupBy(x => (string)x.Element("Code"), y => (string)y.Element("Value"))
                .ToDictionary(x => x.Key, y => y.FirstOrDefault());
        }
    }
}