使用LINQ to XML处理多个命名空间中的XML [英] Using LINQ to XML to Process XML in Multiple Namespaces

问题描述

我正在尝试解析YouTube API的结果.我以字符串形式正确获取结果，但是无法正确解析它.

I'm trying to parse results from the YouTube API. I'm getting the results correctly as a string, but am unable to parse it correctly.

我遵循了上一个线程的建议，但没有得到任何结果.

I followed suggestions on a previous thread, but am not getting any results.

我的示例代码是:

string response = youtubeService.GetSearchResults(search.Term, "published", 1, 50);
XDocument xDoc = XDocument.Parse(response, LoadOptions.SetLineInfo);
var list = xDoc.Descendants("entry").ToList();
var entries = from entry in xDoc.Descendants("entry")
              select new
              {
                  Id = entry.Element("id").Value,
                  Categories = entry.Elements("category").Select(c => c.Value)
                  //Published = entry.Element("published").Value,
                  //Title = entry.Element("title").Value,
                  //AuthorName = entry.Element("author").Element("name").Value,
                  //Thumnail = entry.Element("media:group").Elements("media:thumnail").ToList().ElementAt(0)
              };
foreach (var entry in entries)
{
    // entry.Id and entry.Categories available here
}

问题在于，即使XDocument显然具有有效值，条目的计数也为0.

The problem is that entries has a count of 0 even though the XDocument clearly has the valid values.

可以在此处看到响应变量(示例XML)的值: http://snipt.org/lWm

The value of the response variable (Sample XML) can be seen here: http://snipt.org/lWm

(仅供参考:此处列出了youTube架构: http://code .google.com/apis/youtube/2.0/developers_guide_protocol_understanding_video_feeds.html )

(FYI: The youTube schema is listed here: http://code.google.com/apis/youtube/2.0/developers_guide_protocol_understanding_video_feeds.html)

有人可以告诉我我在做什么错吗?

Can anyone tell me what I'm doing wrong here?

推荐答案

所有数据都位于" http://www.w3.org/2005/Atom 名称空间；您需要在整个过程中使用它:

All the data is in the "http://www.w3.org/2005/Atom" namespace; you need to use this throughout:

XNamespace ns = XNamespace.Get("http://www.w3.org/2005/Atom");

...

from entry in xDoc.Descendants(ns + "entry")
select new
{
    Id = entry.Element(ns + "id").Value,
    Categories = entry.Elements(ns + "category").Select(c => c.Value)
    ...
};

等(未试用)

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