linq - 将 XML 文档转换为字符串数组时出现问题

Question

当我使用 XDcoument 对象将 XML 转换为字符串数组时，我得到 0 计数结果，如下所示

Stream dataStream = response.GetResponseStream();

XDocument doc = XDocument.Load((dataStream));

var services = from s in doc.Descendants("Location")
               select (string)s.Element("Name");

string[] locationArray = services.ToArray();

文档如下

<Locations xmlns="http://schemas.microsoft.com/windowsazure" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <Location>
    <Name>Anywhere US</Name>
  </Location>
  <Location>
    <Name>South Central US</Name>
  </Location>
  <Location>
    <Name>Anywhere Europe</Name>
  </Location>
  <Location>
    <Name>West Europe</Name>
  </Location>
  <Location>
    <Name>Anywhere Asia</Name>
  </Location>
  <Location>
    <Name>Southeast Asia</Name>
  </Location>
  <Location>
    <Name>East Asia</Name>
  </Location>
  <Location>
    <Name>North Central US</Name>
  </Location>
  <Location>
    <Name>North Europe</Name>
  </Location>
</Locations>

获取位置名称数组的代码应该有什么问题？

Answer 1

这是一个有趣的问题。

由于您的 xmlns 命名空间，元素名称都具有该命名空间。这有效:

 var locations = from s in 
              doc.Descendants("{http://schemas.microsoft.com/windowsazure}Name")
                 select s.Value;

locations 现在包含您的所有位置

为了使其更具可读性，您可以这样做:

  var services = from s in doc.Descendants()
                 where s.Name.LocalName == "Location"
                 select s.Value;