这是xml:
<item>
<title>El Reno Tornado 5.31.13</title>
<pubDate>Sat, 01 Jun 2013 14:01:12 -0400</pubDate>
<link>http://url.com</link>
<dc:creator>plankbone</dc:creator>
<description>Chase video next to this monster tornado in El Reno Oklahoma. Check out the people driving on the wrong side of the road to escape it's path!</description>
<guid>id</guid>
<enclosure type="application/x-shockwave-flash" url="http://www.url.com" />
<media:content>
<media:player url="http://www.url.com" />
<media:credit role="author" scheme="http://www.ur.com">plankbone</media:credit>
<media:thumbnail url="http://url.com/80281E/u/u/thumbs/2013/Jun/1/5a1ee391e2dd_thumb_2.jpg" width="120" height="90" />
<media:title>El Reno Tornado 5.31.13</media:title>
<media:category label="Tags">el reno tornado, tornadoes, twisters, storm chasing,</media:category>
</media:content>
</item>
除了从xml文件中抓取缩略图数据之外,这里的代码一切正常。
XNamespace dcM = "http://search.yahoo.com/mrss/";
var xdoc = XDocument.Load(url);
var items = xdoc.Descendants("item")
.Select(item => new
{
Title = item.Element("title").Value,
Description = item.Element("description").Value,
Link = item.Element("link").Value,
PubDate = item.Element("pubDate").Value,
MyImage = (string)item.Elements(dcM + "content")
.Select(i=> i.Elements(dcM + "thumbnail"))
.Select(i => i.Attribute("url").Value)
.SingleOrDefault()
})
.ToList();
由于某些原因,我无法从xml获取值。
感谢任何形式的帮助。
如果元素(内容)中没有其他元素(缩略图),则此示例有效:
让我们说xml代码是:
<media:thumbnail url="http://ur.com/bla.jpg" />
这样可行:
MyImage = (string)item.Elements(dcM + "thumbnail")
.Select(i => i.Attribute("url").Value)
.SingleOrDefault()
答案 0 :(得分:0)
您可以尝试使用这种方式
XmlDocument doc = new XmlDocument();
doc.Load(url);
XmlNodeList elemList = doc.GetElementsByTagName("media:player");
for (int i = 0; i < elemList.Count; i++)
{
string attrVal = elemList[i].Attributes["url"].Value;
}
答案 1 :(得分:0)
我认为应该是
MyImage = item.Element(dcM + "content")
.Element(dcM + "thumbnail")
.Attribute("url").Value