To construct an XElement and XAttribute, simply provide a name and value:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
class Program
{
static void Main()
{
XElement lastName = new XElement("name", "James");
lastName.Add(new XComment("It is a name"));
XElement customer = new XElement("customer");
customer.Add(new XAttribute("id", 123));
customer.Add(new XElement("firstname", "Joe"));
customer.Add(lastName);
Console.WriteLine(customer.ToString());
}
}
The output:
JoeJames