Manipulating Xml with C#

I'm pretty fond of the XDocument class. XDocument lets you have your way with XML without requiring convoluted syntax, especially when used in conjunction with lambda expressions. Here's an example to change the value of an attribute on nodes that were found through a search criterion.

XDocument xDoc = XDocument.Load(

    new StringReader(

        @"<Customers><Customer ID=""99"" Description=""Just another customer""></Customer></Customers>"));

xDoc.Descendants("Customer").ToList().

    ForEach

    (e =>

        {

            if (e.Attribute("ID").Value == "99")

            { e.Attribute("Description").Value = "Our best customer"; }

        }

    );