using System;

public class Program

{

    public static void Main()

    {

        string toCheck = null; // Change this to see how it works

        int? myVal = int.TryParse(toCheck, out int tmp) ? (int?)tmp : null;

        if(myVal == null){

            Console.WriteLine("Value is: null");

        }else{

            Console.WriteLine("Value is: " + myVal);

        }

    }

}