使用 Linq 查询 XElement - 深入了解 XElement

Question

I have a XML document like shown below:

<root>
  <level1>
    <level2>
      <level3>
       .....
      </level3>
      <level3>
       .....
      </level3>

    </level2>
  </level1>
</root>

I want to select all level3 elements, in XPath i would do root/level1/level2/level3 but how do i do it using LINQ ?

Answer 1

var elements = document.Descendants("level3").ToList();

or if you need to follow exact path

var elements = document.Element("root").Element("level1").Element("level2").Elements("level3").ToList();

or XPath, but still will XDocument

var elements = document.XPathSelectElements("root/level1/level2/level3").ToList();

Answer 2

Just use.Decendants

An example