How to add an XML file and read key value pair into a dictionary?

Question

I am fairly new to programming. I am trying to add an XML file in order to store some mappings. I want to ready these key value pairs in a dictionary. Following is the format of the XML I am thinking:

<?xml version="1.0" encoding="utf-8" ?>
<Map>
  <add keyword="keyword1" replaceWith="replaceMe1"/>
  <add keyword="keyword2" replaceWith="replaceMe2"/>  
</Map>

Can you please tell me if the format is correct? If it is, how would I read it into my C# dictionary?

score 7 · Accepted Answer · answered Aug 15 '13 at 21:13

7

You can use LINQ to XML:

var xdoc = XDocument.Load(path_to_xml);
var map = xdoc.Root.Elements()
                   .ToDictionary(a => (string)a.Attribute("keyword"),
                                 a => (string)a.Attribute("replaceWith"));

answered Aug 15 '13 at 21:13

Sergey Berezovskiy

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2

nicely done, faster than I've finished typing todictionary. – Ilya Ivanov Aug 15 '13 at 21:14
@IlyaIvanov yep, good exercise for fingers :) – Sergey Berezovskiy Aug 15 '13 at 21:16
XmlDocument doesn't have "Root". What am I missing here? – windowsgm Aug 11 '17 at 10:19
Nevermind, realised I was using the old school XmlDocument when I should have been using XDocument. – windowsgm Aug 11 '17 at 10:23

score 0 · Answer 2 · answered Aug 15 '13 at 21:21

One way of doing it:

XDocument doc = XDocument.Load("path_to_your_xml_file.xml");
var definitions = doc.Root.Elements()
                        .Select(x => new
                        {
                            Keyword = x.Attribute("keyword").Value,
                            ReplaceWith = x.Attribute("replaceWith").Value
                        });
foreach (var def in definitions)
{
    Console.WriteLine("Keyword = {0}, ReplaceWith = {1}", def.Keyword, def.ReplaceWith);
}

How to add an XML file and read key value pair into a dictionary?

2 Answers2

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