Get create/modified file date time in folder

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C#

filepath

FileIO

scanerio there is a folder where file is created in every 2 seconds and now i want when file is not created in 5 mint means delay time then i want alert that file not created
this code is for when any last file is create/modified in folder that file date time displayed in console and i am done with this ..

i want when ev
i try this

What I have tried:

public static void Main()
        {

            while (true)
            {
                try
                {
                    string path = @"C:\Users\Administrator\Desktop\New folder";

                    //if (!File.Exists(path))
                    //{
                    //    File.Create(path);
                    //}
                    //else
                    //{
                    //    File.SetLastWriteTime(path, DateTime.Now);
                    //}
                    DateTime dt = File.GetLastWriteTime(path);
                    Console.WriteLine("the last time {0}", dt);
                    //Console.ReadLine();
                }
                catch (Exception e)
                {
                    Console.WriteLine("The process failed: {0}", e.ToString());
                }

            }