Add "date condition" to search files

[Ant6729]

Hello!
My code looks for txt files and prints lines containing the values of regular expressions specified in this code to the console.


I would like to add a condition that allows me to search files for a specific date.


I commented out my attempt..

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Text.RegularExpressions;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            string rootFolder = @"C:\Users\Anton\Desktop\?#folder";
            string pattern = @"\b(Nina|Ira|Sveta)\b";

            foreach (var file in Directory.EnumerateFiles(rootFolder, "*.txt", SearchOption.AllDirectories))
            {
                using (StreamReader sr = new StreamReader(file, System.Text.Encoding.Default))
                {
                    string line;

                    while ((line = sr.ReadLine()) != null)
                    {
                        if (Regex.IsMatch(line, pattern, RegexOptions.IgnoreCase))
                            Console.WriteLine(file + " " + line);
                    }
                }
            }

            Console.ReadKey();
        }
    }
}

Could you help me to add a search "date condition" in this code?

 

[jmcilhinney]

I have edited your code to remove huge wads of whitespace and some lines that were commented out. Please don't include that sort of stuff in a post that just makes the whole thing harder to read. I have also aligned the braces so that the code makes sense.