innertext返回所有子文本和自身文本。 除了一个孩子的文字，我该怎么办

Question

I have an xml file

<first>
   first1
   <second>second1</second>
   first2
   <third>third1</third>
   first3
</first>

I want to read self text for <first> and child text for <third> except the child <second>

answer should be

first1 first2 third1 first3

I tried:

.select(descendant::first1[not(descendant::second)]

but it's not working. Need sug

Answer 1

  XElement elem = XElement.Parse(xml);      
  var query = (from e1 in elem.Nodes()
                    where e1.GetType() == typeof(XText)
                    select (e1 as XText).Value.Trim())
                    .Union(from e2 in elem.Descendants()
                               where e2.Name.LocalName.Equals("third")
                               select e2.Value);

Answer 2

Try to get the the XML in XMLDocument and play with it.

 XmlDocument doc = new XmlDocument();
  doc.LoadXml(xml);
  var nodes = doc.DocumentElement.ChildNodes;
  StringBuilder result = new StringBuilder();
  foreach (XmlNode node in nodes)
  {
    if (!node.Name.Equals("second"))
    {
      result.Append(node.InnerText);
      result.Append(" ");
    }
  }

Hope it will solve your problem.