[Solved] How do I create child XElement based on values in C#?

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Here is solution using Xml Linq.. Why is there two nested levels of navPoint? :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication110
{
    class Program
    {
        const string INPUT_FILENAME = @"c:\temp\test.xml";
        const string OUTPUT_FILENAME = @"c:\temp\test1.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(INPUT_FILENAME);
            XElement root = doc.Root;
            XNamespace ns = root.GetDefaultNamespace();
            XElement body = root.Element(ns + "body");

            string newBodyStr = "<body><navMap></navMap></body>";
            XElement newBodyX = XElement.Parse(newBodyStr);

            XElement navMap = newBodyX.Element("navMap");

            int count = 1;


            foreach (XElement p in body.Descendants(ns + "p"))
            {
                string innerText = (string)p;

                XElement newNavPoint = new XElement("navPoint", new object[] {
                    new XAttribute("id", "navPoint-" + count.ToString("d2")),
                    new XAttribute("playOrder", count.ToString("d2")),
                    new XElement("navLabel", new XElement("text", innerText))
                });
                navMap.Add(newNavPoint);
                count++;

            }

            body.ReplaceWith(newBodyX);
            doc.Save(OUTPUT_FILENAME);
        }
    }
}

solved How do I create child XElement based on values in C#?