using System;

using System.Xml.Serialization;

using System.Collections.Generic;

using System.IO;

​

public class Program

{

    public static void Main()

    {

        var xml = "<Job Name=\"test\"><Pages><MainPage Name=\"page1\"></MainPage></Pages></Job>";

        MemoryStream str = new MemoryStream();

        StreamWriter writer = new StreamWriter(str);

        writer.Write(xml);

        writer.Flush();

        str.Position = 0;

        var serializer = new XmlSerializer(typeof(Job));

        var job = (Job)serializer.Deserialize(str);

        Console.WriteLine(job.Pages[0].GetType().Name);

    }

}

​

public class Job

{

    [XmlAttribute]

    public string Name { get; set; }

    [XmlElement]

    public List<PageBase> Pages { get; set; }

}

​

[XmlInclude(typeof(MainPage))]

[XmlInclude(typeof(SubPage))]

 public abstract class PageBase

{

    [XmlAttribute]

    public string Name { get; set; }        

}

​

public class MainPage : PageBase

{

}

​

public class SubPage : PageBase

{

​

}