Null string ToLower exception

CSharp · Console

/Program.cs

using System;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Linq;
					
public class Program
{
	public static void Main()
	{	
		var Names = new List<string> { "John", "Andrew", "Mike" ,"Steve" ,"Jason" };
		string nullString = null;
		var results = Names.Contains(nullString.ToLower());
	}
}