使用“动态”节点解析xml文档

Question

I am parsing XML via an XDocument , how can I retreive all languages, ie <en> or <de> or <CodeCountry> and their child elements?

<en>
  <descriptif>In the historic area, this 16th century Town House on 10,764 sq. ft. features 10 rooms and 3 shower-rooms. Period features include a spiral staircase. 2-room annex house with a vaulted cellar. Period orangery. Ref.: 2913.</descriptif>
  <prox>NOGENT-LE-ROTROU.</prox>
  <libelle>NOGENT-LE-ROTROU.</libelle>
</en>
<de>
  <descriptif>`enter code here`In the historic area, this 16th century Town House on 10,764 sq. ft. features 10 rooms and 3 shower-rooms. Period features include a spiral staircase. 2-room annex house with a vaulted cellar. Period orangery. Ref.: 2913.</descriptif>
  <prox>NOGENT-LE-ROTROU.</prox>
</de>
...
<lang>
  <descriptif></descriptif>
  <prox></prox>
  <libelle></libelle>
</lang>

Answer 1

As your xml document is not well formatted, you should first add a root element. You may do something like that.

var content = File.ReadAllText(@"<path to your xml>");
var test = XDocument.Parse("<Language>" + content + "</Language>");

Then, as you have "dynamic top nodes", you may try to work with their children (which don't seem to be dynamic), assuming all nodes have at least a "descriptif" child. (If it's not "descriptif", it may be "prox" or "libelle") **.

//this will give you all parents, <en>, <de> etc. nodes
var parents = test.Descendants("descriptif").Select(m => m.Parent);

Then you can select the language and childrens. I used an anonymous type, you can of course project to a custom class.

var allNodes = parents.Select(m => new
            {
                name = m.Name.LocalName,
                Descriptif = m.Element("descriptif") == null ? string.Empty : m.Element("descriptif").Value,
                Prox = m.Element("prox") == null ? string.Empty : m.Element("prox").Value ,
                Label = m.Element("libelle") == null ? string.Empty : m.Element("libelle").Value
            });

This is of course not performant code for a big file, but... that's another problem.

---

** Worst case, you may do

var parents = test.Descendants("descriptif").Select(m => m.Parent)
                .Union(test.Descendants("prox").Select(m => m.Parent))
                .Union(test.Descendants("libelle").Select(m => m.Parent));