How to get value of a specific element in xml in c#

Question

I have a xml file in below format

I want to fetch the value of Child1 When I am using below code it is providing a null value. Please help

XDocument xmlDoc = XDocument.Load(fileName);
 XElement po = xmlDoc.Root.Element("Root");
 XElement el1 = po.Element("Child1");

Answer 1

用这个：

xmlDoc.Descendants("Child1").First();