列表比较不起作用

我正在尝试制作一个应用程序，读取两个文本文件，获取这两个文件，并将它们合并到一个列表中。然后取所述列表，并将其与另一个列表（来自另一个文本文件）进行比较。问题是，无论我做什么，我的程序都会转到else（见上面写着的行

if (BoysAndGirlsList.Contains(NameEntered) && MostPopularNamesList.Contains(NameEntered))

)。我不知道它为什么会这样。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Linq; //Needed for concat.
namespace Name_Search
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string BoyNames = System.IO.File.ReadAllText(@"D:'Google Drive'Course Work'C# Intro'Student Sample Programs'Chap07'BoyNames.txt"); //Reads BoyNames txt file.
            List<string> BoyNamesList = BoyNames.Split(''n').ToList(); //Converts it to a list.
            //BoyNamesList.ForEach(Console.WriteLine); <-Testing to make sure that the list is working properly.
            string GirlNames = System.IO.File.ReadAllText(@"D:'Google Drive'Course Work'C# Intro'Student Sample Programs'Chap07'GirlNames.txt"); //Reads GirlNames txt file.
            List<string> GirlNamesList = GirlNames.Split(''n').ToList(); //Converts it to a list.
            List<string> BoysAndGirlsList;
            BoysAndGirlsList = BoyNamesList.Concat(GirlNamesList).ToList(); //Adds the lists together.
            //BoysAndGirlsList.ForEach(Console.WriteLine); <-Again just testing that the list is working.
            string MostPopularNames = System.IO.File.ReadAllText(@"D:'Google Drive'Course Work'C# Intro'Student Sample Programs'Chap07'MostPopularBoyAndGirlNames.txt"); //Reads MostPopularBoyAndGirlNames txt file. Compiled from http://goo.gl/1crLcY.)
            List<string> MostPopularNamesList = MostPopularNames.Split(''n').ToList(); //Converts it to a list.
            string NameEntered = nameInput.Text;
            if (BoysAndGirlsList.Contains(NameEntered) && MostPopularNamesList.Contains(NameEntered))
            {
                MessageBox.Show("This name is one the most popular names!");
            }
            else
            {
                MessageBox.Show("This is not one of the most popular names.");
            }
        }
    }
}

什么东西在这里不能正常工作？我试过放一个休息时间，当我这样做的时候，值对我来说很好。