Take a backup copy of a speciifc folder automatically

Hello Akhil

Thanks for the help. Well, I am interested in FileSystemWatcher Class to use, and therefore, I've checked and then wrote the following function.

But, it executes only the first if condition (in Bold) and skips the rest, Why is that?

and also, where to call the run Watcher method to keep checking on the files (inside a folder) without running my application each time manually?
See where I've tried to call in my code.

private void GetBackup_Click(object sender, EventArgs e)
        {
          
            if (!System.IO.Directory.Exists(targetPath))
            {
                System.IO.Directory.CreateDirectory(targetPath);
            }
          
           
            if(System.IO.Directory.Exists(sourcePath))
            {
            string[] files = System.IO.Directory.GetFiles(sourcePath);
               
                foreach (string s in files)
                {
                    fileName = System.IO.Path.GetFileName(s);
                    destFile = System.IO.Path.Combine(targetPath,fileName);
                    System.IO.File.Copy(s,destFile,true);
                }
                MessageBox.Show("Backup process is complete!", "Taking a backup copy", MessageBoxButtons.OK);
  runWatcher();
            }
            else
            {
                Console.WriteLine("Source path does not exist!");
            }

        }

 private void runWatcher()
        {
            string[] args = System.Environment.GetCommandLineArgs();

            //if a directory is not specified, exit program.
            if (args.Length != 2)
            {
                //Display the proper way to call the program.
                Console.WriteLine("Usage: Watcher.exe(directory)");
                return;
            }

            //create a new FileSystemWatcher and set its properties:
            FileSystemWatcher watcher = new FileSystemWatcher();
            watcher.Path = args[1];
            //Watch for changes in the lastAccess and LastWrite times and the renaming of files or directoreis//

            watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;

            // Only watch text files..
            watcher.Filter = "*.txt";

            //add event handlers:
            watcher.Changed += new FileSystemEventHandler(OnChanged);
            watcher.Created += new FileSystemEventHandler(OnChanged);
            watcher.Deleted += new FileSystemEventHandler(OnChanged);
            watcher.Renamed += new RenamedEventHandler(OnRenamed);

            //begin watching
            watcher.EnableRaisingEvents = true;

            //watif for the user to quite the program.
            Console.WriteLine("press \'q\' to quite the sample. ");
            while (Console.Read() != 'q') ;
        }

        //Define the event hanlders.
    private static void OnChanged(object source, FileSystemEventArgs e)
    {
        // Specify what is done when a file is changed, created, or deleted.
       Console.WriteLine("File: " +  e.FullPath + " " + e.ChangeType);
    }

        private static void OnRenamed(object source, RenamedEventArgs e)
    {
        // Specify what is done when a file is renamed.
        Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath);
    }
   
           
    }