C# How to extract complete xml node set

Question

Answer 1

This query will select that node. Are you trying to get a set of nodes or just the single one? You might have to put the bookstore node back yourself if you only want th subset of nodes.

/bookstore/book[@category='COOKING']

as XmlDocument ...

var x = new XmlDocument();
x.Load("XmlFile1.xml");
var ns = x.SelectSingleNode("/bookstore/book[@category='COOKING']");

var res = ns.OuterXml;

as XDocument ...

var x = XDocument.Load("XmlFile1.xml");

var root = new XElement("bookstore",
    from book in x.Element("bookstore").Elements("book")
    where book.Attribute("category").Value == "COOKING"
    select book
    );

if you just want the book node you can do this instead of the root version above

var book = x.Element("bookstore")
    .Elements("book")
    .Where(n => n.Attribute("category").Value == "COOKING")
    .First();