Fast XmlDocument to XDocument conversion with extension method
Really just a variation based on Kris' comment on my previous XmlDocument to XDocument conversion post.
So if we like the reader option, what is a convenient way of encapsulating that? Well C# 3 extension methods aren't too bad.
Here is one way of writing the methods.
public static class XmlDocumentExtensions
{
public static XDocument ToXDocument(this XmlDocument document)
{
return document.ToXDocument(LoadOptions.None);
}
public static XDocument ToXDocument(this XmlDocument document, LoadOptions options)
{
using (XmlNodeReader reader = new XmlNodeReader(document))
{
return XDocument.Load(reader, options);
}
}
}
Now, as long as the class is visible to the code you're writing, you can write code like this.
XmlDocument doc = new XmlDocument();
doc.LoadXml("<parent><child>text</child></parent>");
XDocument xdoc = doc.ToXDocument();
var children = xdoc.Document.Element("parent").Elements("child");
foreach (var child in children)
{
Console.WriteLine(child.Value);
}
Of course, if you could you would just start off from an XDocument - this addresses the cases where you already have an XmlDocument around and you can't just change all code to use XmlDocument.
One thing that I like about extension methods is that it helps bridge dependencies across libraries in a clean way. More on this on some later post.
Enjoy!
