System Xml Linq C# by API

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.Linq;
using System.Reflection;
using System.Xml.Linq;
class Program {
    static void Main(string[] args) {
        XElement xml = XElement.Load("Employee.xml");
        var record = xml.Descendants("firstname").First();
        foreach (var tag in record.Ancestors())
            Console.WriteLine(tag.Name);
    }
}