using System;

using System.Xml.Serialization;

public class Program

{

    public static void Main()

    {

        var album = new Album

        {

            Title = "Album Title",

            Description = "Some explanation.",

            CoverImgIndx = 2,

            Images = new Image[] {

                new Image { indx = 0, filepath = @"C:\Images\file1.jpg" },

                new Image { indx = 1, filepath = @"C:\Images\file2.png" },

                new Image { indx = 2, filepath = @"C:\Images\file3.jpg" }

            }

        };

        XmlSerializerNamespaces ns = new XmlSerializerNamespaces();

        ns.Add("","");

        XmlSerializer serializer = new XmlSerializer(typeof(Album));

        serializer.Serialize(Console.Out, album, ns);

    }

}

​

[XmlRoot]

public class Album

{

    public string Title { get; set; }

    public string Description { get; set;}

    public int CoverImgIndx { get; set; }

    public Image[] Images { get; set; }

}

​

public class Image

{

    public int indx { get; set; }

    public string filepath { get; set; }

}