求一简单linqtoxml查询语句

Question

我的xml文档如下：
<entry gd:kind="asdf#person" xmlns="http://portablecontacts.net/ns/1.0" xmlns:gd="http://schemas.google.com/g/2005">
  <id>103854838474573576376</id>
  <displayName>garden au</displayName>
  <profileUrl>http://www.google.com/profiles/dddd</profileUrl>
  <thumbnailUrl>http://www.google.com/friendconnect/scs/images/NoPictureDark65.jpg</thumbnailUrl>
  <emails>
    <value>[email protected]</value>
    <type />
    <primary>true</primary>
  </emails>
<emails>
    <value>[email protected]</value>
    <type />
    <primary>false</primary>
  </emails>
  <urls>
    <value>http://picasaweb.google.com/4545245</value>
  </urls>
  <urls>
    <value>http://www.google.com/profiles/45252525</value>
    <type>profile</type>
  </urls>
  <urls>
    <value>https://www.googleapis.com/buzz/v1/people/442225/@self?alt=atom</value>
    <type>atom</type>
  </urls>
</entry>
我想查询出[email protected]的值，求一段linqtoxml语句

Answer 1

string xmlData3 = @"xml路径";
XElement xelement3 = XElement.Load(xmlData3);
XNamespace ns = "http://portablecontacts.net/ns/1.0";   
var query = from node in xelement3.Descendants(ns + "emails")
            select node.Element(ns + "value").Value;
foreach (var email in query.ToList())
    Console.WriteLine(email);