using System;

using System.IO;

using System.Xml;

using System.Text;

using Newtonsoft.Json;

using Newtonsoft.Json.Schema;

public class Program

{

    public static void Main()

    {

        var xmlMin = new XMLMinifier(XMLMinifierSettings.Aggressive);

        string Xml = @"<?xml version='1.0' standalone='no'?>

<root>

  <person id='1'>

  <name>Alan</name>

  <url>http://www.google.com</url>

  </person>

  <person id='2'>

  <name>Louis</name>

  <url>http://www.yahoo.com</url>

  </person>

</root>";

        Console.WriteLine(xmlMin.Minify(Xml));

    }

    public class XMLMinifier

{

    private XMLMinifierSettings _minifierSettings;

    public XMLMinifier(XMLMinifierSettings minifierSettings)

    {

        _minifierSettings = minifierSettings;

    }

    public string Minify(string xml)

    {

        var originalXmlDocument = new XmlDocument();

        originalXmlDocument.PreserveWhitespace = 

            !(_minifierSettings.RemoveWhitespaceBetweenElements || 

                _minifierSettings.RemoveEmptyLines);

        originalXmlDocument.Load(new MemoryStream(Encoding.UTF8.GetBytes(xml)));

        //remove comments first so we have less to compress later

        if (_minifierSettings.RemoveComments)

        {

            foreach (XmlNode comment in originalXmlDocument.SelectNodes("//comment()"))

            {

                comment.ParentNode.RemoveChild(comment);

            }

        }

        if (_minifierSettings.CloseEmptyTags)

        {

            foreach (XmlElement el in

                originalXmlDocument.SelectNodes("descendant::*[not(*) and not(normalize-space())]"))

            {

                el.IsEmpty = true;

            }

        }

        if (_minifierSettings.RemoveWhitespaceBetweenElements)

        {

            return originalXmlDocument.InnerXml;

        }

        else

        {

            var minified = new MemoryStream();

            originalXmlDocument.Save(minified);

            return Encoding.UTF8.GetString(minified.ToArray());

        }

    }

}

    public class XMLMinifierSettings

{

    public bool RemoveEmptyLines { get; set; }

    public bool RemoveWhitespaceBetweenElements { get; set; }

    public bool CloseEmptyTags { get; set; }

    public bool RemoveComments { get; set; }

    public static XMLMinifierSettings Aggressive

    {

        get

        {

            return new XMLMinifierSettings

            {

                RemoveEmptyLines = true,

                RemoveWhitespaceBetweenElements = true,

                CloseEmptyTags = true,

                RemoveComments = true

            };

        }

    }

    public static XMLMinifierSettings NoMinification

    {

        get

        {

            return new XMLMinifierSettings

            {

                RemoveEmptyLines = false,

                RemoveWhitespaceBetweenElements = false,

                CloseEmptyTags = false,

                RemoveComments = false

            };

        }

    }

}

}