using System;

using System.Collections.Generic;

using System.Reflection;

public class Program

{

    public static void Main()

    {

        temp temps = new temp();

        temps.association = new List<object>();

        Type s = temps.GetType();

        PropertyInfo e = s.GetProperty("liassociationst");

        if(e == null){

        Console.WriteLine("Hello World");

        }

        else

        {

            var val = e.GetValue(temps);

            Console.WriteLine(val);

        }

    }

}

​

public class temp

{

    public List<object> association = new List<object>();

}