using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var models = new List<Model>{ new Model("01", 1, new Sortable("joking"))

            , new Model("Player", 5, new Sortable("man"))

            , new Model("Dream", 7, new Sortable("tux"))

            , new Model("Vanity", 6, new Sortable("apple"))};

        var collectionObj = new CollectionObj(){

            Models = models

        };

        //change this as needed to try different sorts

        collectionObj.OrderByDynamic(m => m.SortObj);

        foreach(var model in collectionObj.Models)

            Console.WriteLine("Id:{0, 10}, Value:{1, 3}, SortId:{2}", model.Id, model.Value, model.SortObj.SortId);

    }

}

​

public class CollectionObj {

    public IEnumerable<Model> Models {get; set;}

​

    public void OrderByDynamic(Func<Model, object> orderByFunc)

    {

        Models = Models.OrderBy(orderByFunc);

    }

}

​

public class Model {

    public string Id {get; set;}    

    public int Value {get; set;}

    public Sortable SortObj {get; set;}

    public Model(string id, int val, Sortable sortObj) {

        this.Id = id;

        this.Value = val;

        this.SortObj = sortObj;

    }

}

​

public class Sortable : IComparable 

{

    public string SortId {get; set;}

    public Sortable(string str)

    {

        this.SortId = str;

    }

    public int CompareTo(object other)

    {

        if (!(other is Sortable))

            throw new ArgumentException();

        return this.SortId.CompareTo(((Sortable) other).SortId);

    }

}

​