问一linq to xml问题

jxdom 2010-12-24 08:48:30

我的xml如下：



<feed gd:kind="buzz#activityFeed" xmlns="http://www.w3.org/2005/Atom" xmlns:activity="http://activitystrea.ms/spec/1.0/" xmlns:buzz="http://schemas.google.com/buzz/2010" xmlns:crosspost="http://purl.org/syndication/cross-posting" xmlns:gd="http://schemas.google.com/g/2005" xmlns:georss="http://www.georss.org/georss" xmlns:media="http://search.yahoo.com/mrss/" xmlns:poco="http://portablecontacts.net/ns/1.0" xmlns:thr="http://purl.org/syndication/thread/1.0">

  <link rel="self" type="application/atom+xml" href="https://www.googleapis.com/buzz/v1/activities/103854838474576564357/@public?alt=atom" />

  <link rel="hub" href="http://pubsubhubbub.appspot.com/" />

  <title>Google Buzz Public Feed for ddddddd</title>

  <updated>2010-12-21T13:44:03.083Z</updated>

  <id>tag:google.com,2010:buzz-feed:public:posted:103854838474576564357</id>

  <generator uri="http://www.google.com/buzz">Google Buzz</generator>

  <entry gd:kind="buzz#activity">

    <title>asdfasdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdf。</title>

    <published>2010-12-21T13:44:02.000Z</published>

    <updated>2010-12-21T13:44:03.083Z</updated>

    <id>tag:google.com,2010:buzz:z125iffjxznzj5pkk23dzhupbwvhzxdep</id>

    <link rel="alternate" type="text/html" href="http://www.google.com/buzz/103854838474576564357/3nokvYxiAdf" />

    <link rel="self" type="application/atom+xml" href="https://www.googleapis.com/buzz/v1/activities/103854838474576564357/@self/B:z125iffjxznzj5pkk23dzhupbwvhzxdep?alt=atom" />

    <link rel="replies" type="application/atom+xml" href="https://www.googleapis.com/buzz/v1/activities/103854838474576564357/@self/B:z125iffjxznzj5pkk23dzhupbwvhzxdep/@comments?alt=atom" thr:count="0" thr:updated="2010-12-21T13:44:03.083Z" />

    <author>

      <poco:id>103854838474576564357</poco:id>

      <poco:photoUrl />

      <name>ddddddd</name>

      <uri>http://www.google.com/profiles/103854838474576564357</uri>

      <link rel="photo" type="image/jpeg" href="" />

      <activity:object-type>http://activitystrea.ms/schema/1.0/person</activity:object-type>

    </author>

    <content type="html">asdfasdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdf。</content>

    <activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>

    <activity:object>

      <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>

      <content type="html">asdfasdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdf。</content>

      <buzz:original-content type="text" />

      <link rel="alternate" type="text/html" href="http://www.google.com/buzz/103854838474576564357/3nokvYxiAdf" />

    </activity:object>

    <source>

      <activity:service>

        <title>www.asdd.com</title>

      </activity:service>

    </source>

    <buzz:visibility>

      <buzz:aclentry type="group">

        <poco:id>G:@me:@public</poco:id>

        <uri>https://www.googleapis.com/buzz/v1/people/@me/@groups/G:@me:@public?alt=atom</uri>

        <poco:name>Public</poco:name>

      </buzz:aclentry>

    </buzz:visibility>

    <link rel="http://schemas.google.com/buzz/2010#liked" type="application/poco+xml" href="https://www.googleapis.com/buzz/v1/activities/103854838474576564357/@self/B:z125iffjxznzj5pkk23dzhupbwvhzxdep/@liked?alt=atom" buzz:count="0" />

  </entry>  

</feed>



var queryda = from entry in xelement.Elements(XName.Get("entry", "http://www.w3.org/2005/Atom"))

                      select new

                      {                          

                          stsource = entry.Element(XName.Get("source", "http://www.w3.org/2005/Atom")).Element(XName.Get("service", "http://activitystrea.ms/spec/1.0/")).Element(XName.Get("title", "http://www.w3.org/2005/Atom")).Value，

　　　　　　　　　　　　　linkcount = entry.Element(XName.Get("link", "http://www.w3.org/2005/Atom")).Attribute("http://schemas.google.com/buzz/2010" + "count").Value,//这里出错

};

问题１我想取得
<link rel="http://schemas.google.com/buzz/2010#liked" type="application/poco+xml" href="https://www.googleapis.com/buzz/v1/activities/103854838474576564357/@self/B:z125iffjxznzj5pkk23dzhupbwvhzxdep/@liked?alt=atom" buzz:count="0" />中的count值。

还有一个问题就是，entry.Element(XName.Get("link"　得到几个link，我以上语句如何区分想要的link?是通过rel条件吗？如果是，这个条件怎么判断？

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