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C # Parsing a Simple XML File Using LINQ

I have this very simple xml file:

<?xml version="1.0" encoding="UTF-8"?>
<ConfigurationFile>
    <ConfigurationFilePath>Test1</ConfigurationFilePath>
    <ConnectionString>Test2</ConnectionString>
    <AnalyzeFilePath>Test3</AnalyzeFilePath>
</ConfigurationFile>

And I want to get information about each field. But it does not display anything.

Here is my C # code:

private void ParseXMLFile()
{
    Console.WriteLine("Parse");
    if (configurationPAthFileTextbox.Text != null)
    {
        Console.WriteLine("file != null");
        try
        {
            XElement main = XElement.Load(configurationPAthFileTextbox.Text);

            var results = main.Descendants("ConfigurationFile")
                          .Select(e => new { ConfigurationFilePath = e.Descendants("ConfigurationFilePath").FirstOrDefault().Value,
                                   ConnectionString = e.Descendants("ConnectionString").FirstOrDefault().Value });

            foreach (var result in results)
                Console.WriteLine("{0}, {1}", result.ConfigurationFilePath, result.ConnectionString);
            Console.ReadLine();

        }
        catch (Exception e)
        {
            Debug.WriteLine(e.ToString());
        }
    }
}
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2 answers

  • Download it as XDocumentbecause it is a document, not an element.

    var xDoc = XDocument.Load(configurationPAthFileTextbox.Text);

  • You can easily convert your document to Dictionary<string, string>with element names as keys and element values โ€‹โ€‹as values:

    var results = xDoc.Root
                  .Elements()
                  .ToDictionary(e => e.Name, e => (string)e);

  • To print ConfigurationFilePathand ConnectionString:

    Console.WriteLine("{0}, {1}", results["ConfigurationFilePath"], results["ConnectionString"]);

    Print Test1, Test2.

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, XML . , , , XML :

public class ConfigurationFile
{
    public String ConfigurationFilePath { get; set; }
    public String ConnectionString { get; set; }
    public String AnalyzeFilePath { get; set; }

    public ConfigurationFile(String xmlFilePath)
    {
        XDocument document = XDocument.Load(xmlFilePath);
        var root = document.Root;

        ConfigurationFilePath = (string)root.Element("ConfigurationFilePath");
        ConnectionString = (string)root.Element("ConnectionString");
        AnalyzeFilePath = (string)root.Element("AnalyzeFilePath");
    }
}

, :

var configFile = new ConfigurationFile(xmlFilePath);

var path = configFile.ConfigurationFilePath;
var connectString = configFile.ConnectionString;
var analyzeFilePath = configFile.AnalyzeFilePath;

, . ( , XML , , .)

using System;
using System.Xml;
using System.Xml.Linq;

class LinqToXmlDemo
{
    static public void Main(string[] args)
    {
        string xmlContent = GetXml();
        var configFile = new ConfigurationFile(xmlContent);

        Console.WriteLine
            ("ConfigurationFilePath:[{0}]\n" +
             "ConnectionString:[{1}]\n" +
             "AnalyzeFilePath:[{2}]\n--",
             configFile.ConfigurationFilePath,
             configFile.ConnectionString,
             configFile.AnalyzeFilePath);
    }

    static string GetXml()
    {
        return
            @"<?xml version='1.0' encoding='UTF-8'?>
              <ConfigurationFile>
                  <ConfigurationFilePath>Test1</ConfigurationFilePath>
                  <ConnectionString>Test2</ConnectionString>
                  <AnalyzeFilePath>Test3</AnalyzeFilePath>
              </ConfigurationFile>";
    }
}

public class ConfigurationFile
{
    public String ConfigurationFilePath { get; set; }
    public String ConnectionString { get; set; }
    public String AnalyzeFilePath { get; set; }

    public ConfigurationFile(String xml)
    {
        XDocument document = XDocument.Parse(xml);
        var root = document.Root;

        ConfigurationFilePath = (string)root.Element("ConfigurationFilePath");
        ConnectionString = (string)root.Element("ConnectionString");
        AnalyzeFilePath = (string)root.Element("AnalyzeFilePath");
    }
}


ConfigurationFilePath:[Test1]
ConnectionString:[Test2]
AnalyzeFilePath:[Test3]
--
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