Get or set the value of an attribute in CSharp

using System;/*w  w w.j a v  a 2s .  c  om*/
using System.Linq;
using System.Xml;
using System.Xml.Linq;
using System.Collections;
using System.Collections.Generic;

public class MainClass{
   public static void Main(){
        XElement root = new XElement("Root",
            new XAttribute("Att", "content")
        );
        XAttribute att = root.FirstAttribute;
        Console.WriteLine(att.Value);
        att.Value = "new text";
        Console.WriteLine(att.Value);
    }
}