XML serialization - include one XML file in another?

Question: suppose you have a XML

<rootelement>
  <transaction>
    <code>not found</code>
    <status>404</status>
  </transaction>
  <data>
      <item>Whatever</item>
  </data>
</rootelement>

And another XML file:

<rootelement2>
  <transaction>
    <code>not found</code>
    <status>404</status>
  </transaction>
  <searchresult>
    <item>Whatever</item>
  </searchresult>
</rootelement2>

Now, furthermore suppose the tags transaction, searchresult and data are not present, and therefore, their child elements have a namespace instead.

(See here Serializing XML with strange namespaces?)

Is there a way I can have one class for everything transaction, one class for everything data, and one class for everything searchresult, and then create a class SearchResultRequest which encapsulates transaction + its own respective content (without the enclosing tags <transaction> and <searchresult>),

Something like

class SearchResultRequest
{
    <XML_SerializeContentOnly_Here()>
    public cTransaction Transaction = new cTransaction();

    <XML_SerializeContentOnly_Here()>
    public cSearchResult SearchResult = new cSearchResult();
}