XML Linq新手问题

Question

我正在处理类似这样的XML文件：

<lfm status="ok">
    <user>
       <name>JohnnyWestlake</name>
       <image size="large">http://someurl.com/large.jpg</image>
       <image size="extralarge">ttp://someurl.com/exlarge.jpg</image>
       ...
    </user>
</lfm>

我正在使用Linq将其添加到用户类中，如下所示：

        User user;

        user = (from lfmUser in userrequest.Descendants("user")
               select new User
               {
                   Name = lfmUser.Element("name").Value,
                   ImageM = lfmUser.Element("image").Value,
                   ...
               }).FirstOrDefault();

问题，如何将ImageM设置为image size =“extralarge”中包含的url，而不是image size =“large”？或者我应该采取另一种方式？

Answer 1

ImageM = lfmUser.Elements("image")
                .Where( e => e.Attribute( "size" ).Value == "extralarge" )

Answer 2

试试这个：

var user = (from lfmUser in userrequest.Descendants("user")
    select new User
    {
        Name = lfmUser.Element("name").Value,
        ImageM = lfmUser.Descendants("image").Where(x=>x.Attribute("size").Value == "large").First().Value
    }).FirstOrDefault();