Create a new instance of the XDocument and add XComment and XElement
using System; using System.Linq; using System.Xml.Linq; using System.Collections; using System.Collections.Generic;
public class MainClass{ public static void Main(){
XDocument doc = new XDocument();
doc.Add(new XComment("This is a comment"));
doc.Add(new XElement("Root", "content"));
Console.WriteLine(doc);
}
}