using System;

using System.Data;

using System.Linq;

using System.Collections;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var list = new List<DataInfo>();

        list.Add(new DataInfo(){ Name = "2", SortIndex = 2});

        list.Add(new DataInfo(){ Name = "1", SortIndex = 1});

        var m = list.Min(d => d);

        Console.WriteLine(m.Name);

        Console.WriteLine("Hello World");

    }

}

​

public class DataInfo: IComparable<DataInfo>

{

    public int CompareTo(DataInfo other)

    {

        return this.SortIndex.CompareTo(other.SortIndex);

    }

    public string Name;

    public int SortIndex;

}