c# - 仅使用 LinqToXml 读取内部列表

Question

我想使用 LinqToXml 从 xml 文件中读出给定艺术家的专辑列表

<?xml version="1.0" encoding="utf-8" ?><artists>  <artist name="Beatles">    <albums>      <album title="Please Please Me" year="1963"/>      <album title="With the Beatles" year="1963"/>      ...    </albums>  </artist>  ...

我使用 LinqToXml 尝试了以下操作。但是，我想避免实例化艺术家对象...

XDocument xartists = XDocument.Load(FilePhysicalPath);var artists = from xartist in xartists.Descendants("artist")              where xartist.Attribute("name").Value.Equals(id)              select new MusicArtist              {                  Albums = from xalbum in xartist.Descendants("album")                           select new MusicAlbum                           {                               Title = xalbum.Attribute("title").Value,                               Year =                               int.Parse(xalbum.Attribute("year").Value)                           }              };var artist = artists.SingleOrDefault();if (artist != null)    return artist.Albums;else    return null;

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更新:我目前的“最佳”尝试:查看已接受的答案。

Answer 1

尝试这样的事情:

    return (from artist in 
                     (from xartist in xartists.Descendants("artist")
                     where xartist.Attribute("name").Value.Equals("Beatles")
                     select new MusicArtist
                     {
                         Albums = from xalbum in xartist.Descendants("album")
                                  select new MusicAlbum
                                  {
                                      Title = xalbum.Attribute("title").Value,
                                      Year =  int.Parse(xalbum.Attribute("year").Value)
                                  }
                     })
                  where artist != null
                 select artist).FirstOrDefault();