Query an XDocument for elements by name at any depth

Descendants should work absolutely fine. Here's an example:

using System;using System.Xml.Linq;class Test{    static void Main()    {        string xml = @"<root>  <child id='1'/>  <child id='2'>    <grandchild id='3' />    <grandchild id='4' />  </child></root>";        XDocument doc = XDocument.Parse(xml);        foreach (XElement element in doc.Descendants("grandchild"))        {            Console.WriteLine(element);        }    }}

Results:

<grandchild id="3" />
<grandchild id="4" />

An example indicating the namespace:

String TheDocumentContent =@"<TheNamespace:root xmlns:TheNamespace = 'http://www.w3.org/2001/XMLSchema' >   <TheNamespace:GrandParent>      <TheNamespace:Parent>         <TheNamespace:Child theName = 'Fred'  />         <TheNamespace:Child theName = 'Gabi'  />         <TheNamespace:Child theName = 'George'/>         <TheNamespace:Child theName = 'Grace' />         <TheNamespace:Child theName = 'Sam'   />      </TheNamespace:Parent>   </TheNamespace:GrandParent></TheNamespace:root>";XDocument TheDocument = XDocument.Parse( TheDocumentContent );//Example 1:var TheElements1 =from    AnyElementin    TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" )select    AnyElement;ResultsTxt.AppendText( TheElements1.Count().ToString() );//Example 2:var TheElements2 =from    AnyElementin    TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" )where    AnyElement.Attribute( "theName" ).Value.StartsWith( "G" )select    AnyElement;foreach ( XElement CurrentElement in TheElements2 ){    ResultsTxt.AppendText( "\r\n" + CurrentElement.Attribute( "theName" ).Value );}

You can do it this way:

xml.Descendants().Where(p => p.Name.LocalName == "Name of the node to find")

where xml is a XDocument.

Be aware that the property Name returns an object that has a LocalName and a Namespace. That's why you have to use Name.LocalName if you want to compare by name.