c# - 使用 syndicationitem 获取自定义 rss 提要项目元素？

Question

我有一个像这样的 RSS 提要:

<item>
<title>
Ellen celebrates the 20th anniversary of coming out episode
</title>
<link>
http://www.dailymail.co.uk/video/tvshowbiz/video-1454179/Ellen-celebrates-20th-anniversary-coming-episode.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490
</link>
<description>
Ellen celebrates 20th anniversary of coming out episode on her old sitcom 'Ellen'. Ellen said she cried during rehearsals but urged everyone to stay true to themselves and it will benefit you in the long term.
</description>
<enclosure url="http://i.dailymail.co.uk/i/pix/2017/04/27/00/3FA409EA00000578-0-image-m-21_1493249529333.jpg" type="image/jpeg" length="7972"/>
<pubDate>Thu, 27 Apr 2017 00:45:14 +0100</pubDate>
<guid>
http://www.dailymail.co.uk/video/tvshowbiz/video-1454179/Ellen-celebrates-20th-anniversary-coming-episode.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490
</guid>
<media:description/>
<media:thumbnail url="http://i.dailymail.co.uk/i/pix/2017/04/27/00/3FA409EA00000578-0-image-m-21_1493249529333.jpg" width="154" height="115"/>
<media:credit scheme="urn:ebu">YouTube</media:credit>
<media:content url="http://video.dailymail.co.uk/video/mol/2017/04/26/4464646762446275941/1024x576_MP4_4464646762446275941.mp4" type="video/mp4" medium="video" duration="245" lang="en"/>
</item>

我正在尝试获取 media:content 的 url 值，当我像这样遍历联合项目时:

            foreach (SyndicationItem item in feed.Items)
            {

                foreach (SyndicationElementExtension extension in item.ElementExtensions)
                {
                    XElement ele = extension.GetObject<XElement>();
                    MessageBox.Show(ele.Value);
                }


            }

我得到的是空白数据，如何获取媒体内容的url？

Answer 1

你试过吗:

XElement ele = extension.GetObject<XElement>();
if (ele.Name.LocalName == "content")
{
   MessageBox.Show(ele.Attribute("url").Value);
}