using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;

namespace ScratchPad
{
    class Program
    {
        static void RemoveLocalFiles1(List<string> LocalFiles)
        {
            // Ensure there is something to process
            if (LocalFiles != null && LocalFiles.Count > 0)
            {
                foreach (string file in LocalFiles)
                {
                    try { File.Delete(file); }
                    catch { }
                }
            }
        }

        // Option 2: Check for the existence of the file before delting
        static void RemoveLocalFiles2(List<string> LocalFiles)
        {
            // Ensure there is something to process
            if (LocalFiles != null && LocalFiles.Count > 0)
            {
                foreach (string file in LocalFiles)
                {
                    if (File.Exists(file) == true)
                        File.Delete(file);
                }
            }
        }

        static void Main(string[] args)
        {
            List<string> files;
            string filePath;
            Stopwatch swatch = new Stopwatch();
            int numFiles = 10000;

            files = new List<string>();
            for (int i = 0; i < numFiles; i++)
            {
                filePath = string.Format("file" + i + ".tmp");
                files.Add(filePath);
            }
            swatch.Reset();
            swatch.Start();
            RemoveLocalFiles1(files);
            swatch.Stop();
            Console.WriteLine("RemoveLocalFiles1 (try/catch) : " + swatch.ElapsedMilliseconds);

            files = new List<string>();
            for (int i = 0; i < numFiles; i++)
            {
                filePath = string.Format("file" + i + ".tmp");
                files.Add(filePath);
            }
            swatch.Reset();
            swatch.Start();
            RemoveLocalFiles2(files);
            swatch.Stop();
            Console.WriteLine("RemoveLocalFiles2 (try/catch) : " + swatch.ElapsedMilliseconds);

            Console.ReadLine();
        }
    }
}