using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

// https://stackoverflow.com/questions/60256958/how-to-pass-search-parameter-into-function-that-will-search-a-c-sharp-collectio#60256958

​

public class Program

{

    public static void Main()

    {

        var myMembers = new List<Member>

        {

            new Member{ID=1,FirstName="John",LastName="Doe"},

            new Member{ID=3,FirstName="Allan",LastName="Jones"},

            new Member{ID=2,FirstName="Martin",LastName="Moe"},

            new Member{ID=4,FirstName="Ludwig",LastName="Issac"}

        };

        foreach (var item in sortCollection(p => p.ID, myMembers))

        {

            Console.WriteLine(item.LastName);

        }

    }

    public static IEnumerable<Member> sortCollection(Func<Member, object> keySelector, List<Member> myCollection)

    {

        return myCollection.OrderBy(keySelector);

    }

}

​

public class Member

{

    public int ID { get; set; }

​

    public string FirstName { get; set; }

​

    public string LastName { get; set; }

}