从XDocument中选择XElement

Question

我真的不想寻求帮助,因为我知道我最终会弄清楚,但我花了太多时间,如果文件有父标签或更好的结构,那将是一块蛋糕.可悲的是我正在下载文档,我无法弄清楚如何获取数据.

我尝试了一些使用XElement作为迭代器的linq查询和foreach.无论如何这里是结构的一个例子.

<ResultSet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:yahoo:srch" xsi:schemaLocation="urn:yahoo:srch http://api.search.yahoo.com/SiteExplorerService/V1/InlinkDataResponse.xsd" totalResultsAvailable="247930100" firstResultPosition="99" totalResultsReturned="100">
 <Result>
  <Title>Adobe - Adobe Reader</Title> 
  <Url>http://get.adobe.com/fr/reader/</Url> 
  <ClickUrl>http://get.adobe.com/fr/reader/</ClickUrl> 
  </Result>
 <Result>
  <Title>Religious Tolerance</Title> 
  <Url>http://www.religioustolerance.org/</Url> 
  <ClickUrl>http://www.religioustolerance.org/</ClickUrl> 
  </Result>
 <Result>
  <Title>Applications Internet riches (RIA) | Adobe Flash Player</Title> 
  <Url>http://www.adobe.com/fr/products/flashplayer/</Url> 
  <ClickUrl>http://www.adobe.com/fr/products/flashplayer/</ClickUrl> 
  </Result>
 <Result>
  <Title>photo management software | Adobe Photoshop Lightroom 3</Title> 
  <Url>http://www.adobe.com/products/photoshoplightroom/</Url> 
  <ClickUrl>http://www.adobe.com/products/photoshoplightroom/</ClickUrl> 
  </Result>
 <Result>
  <Title>Battle for Wesnoth</Title> 
  <Url>http://www.wesnoth.org/</Url> 
  <ClickUrl>http://www.wesnoth.org/</ClickUrl> 
  </Result>
</ResultSet>

这是最新代码段的示例.

foreach (XElement ele in xDoc.Descendants("ResultSet").Elements("Result"))
                {
                    CollectedUris.Add(ele.Element("Url").Value);
                }

Answer 1

你需要添加一个XNamespace:

XNamespace ns = "urn:yahoo:srch";

var query = xDoc.Root.Descendants( ns + "Result" ).Elements( ns + "Url" )

foreach( XElement e in query )
{
    CollectedUris.Add( e.Value );
}

编辑:
奖励积分的LINQ解决方案:

xDoc.Root.Descendants( ns + "Result" )
    .Elements( ns + "Url" )
    .Select( x => x.Value ).ToList()
    .ForEach( CollectedUris.Add );