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Write WCF XML Message to Dictionary
<data>
  <name>Jim</name>
  <age>28</age>
  <location>London</location>
</data>

[DataContract(Namespace="",Name="data")]
public class Data
{
    [DataMember(Name = "name")]
    public string Name;
    [DataMember(Name = "age")]
    public string Age;
    [DataMember(Name = "location")]
    public string Location;

}

<dict>
  <key>Name</key>
  <string>Jim</string>
  <key>Age</key>
  <string>28</string>
  <key>Location</key>
  <data>London</data>
</dict>

var oldMessage = XDocument.Parse(message_string);
var newMessage = new XDocument(new XElement("data",
    oldMessage.Root.Elements("key").Select(el =>
        new XElement(el.Value.ToLower(),
            el.ElementsAfterSelf().First().Value))));