Jon Skeet - <skeet@pobox.com>
http://www.pobox.com/~skeet   Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

Roger Frost
"Logic Is Syntax Independent"

<begin sample app>

using System;
using System.IO;

namespace ConsoleApplication1
{
   class Program
   {
       static void Main(string[] args)
       {

           //Running on Windows XP SP2

           //Visual C# 2008 Express Edition
           //.NET 3.5

           //In drive D:

           //New > Text Document
           //Rename to 'temp' (no extension)

           //New > Text Document
           //Rename to 'temp.file'

           //New > Folder
           //Rename to 'temp2'

           //New > Folder
           //Rename to 'temp.dir'

           //'NONE' Is known to not exist in the file system

           //class System.IO.File
           Console.WriteLine("File.Exists(\"D:\\\\temp\"): " +
File.Exists("D:\\temp")); //True
           Console.WriteLine("File.Exists(\"D:\\\\temp.file\"): " +
File.Exists("D:\\temp.file")); //True
           Console.WriteLine("File.Exists(\"D:\\\\temp2\"): " +
File.Exists("D:\\temp2")); //False
           Console.WriteLine("File.Exists(\"D:\\\\temp.dir\"): " +
File.Exists("D:\\temp.dir")); //False
           Console.WriteLine("File.Exists(\"D:\\\\NONE\"): " +
File.Exists("D:\\NONE")); //False

           Console.WriteLine();

           //class System.IO.Directory
           Console.WriteLine("Directory.Exists(\"D:\\\\temp\"): " +
Directory.Exists("D:\\temp")); //False
           Console.WriteLine("Directory.Exists(\"D:\\\\temp.file\"): " +
Directory.Exists("D:\\temp.file")); //False
           Console.WriteLine("Directory.Exists(\"D:\\\\temp2\"): " +
Directory.Exists("D:\\temp2")); //True
           Console.WriteLine("Directory.Exists(\"D:\\\\temp.dir\"): " +
Directory.Exists("D:\\temp.dir")); //True
           Console.WriteLine("Directory.Exists(\"D:\\\\NONE\"): " +
Directory.Exists("D:\\NONE")); //False

           Console.WriteLine();

           //Test it in Principle

           string path = "D:\\temp";

           if (File.Exists(path) == true)
           {
               Console.WriteLine(path + " is a file");
           }
           else if (Directory.Exists(path) == true)
           {
               Console.WriteLine(path + " is a directory");
           }
           else
           {
               Console.WriteLine(path + " does not exist");
           }

           //My Output: "D:\temp is a file"

           System.Threading.Thread.Sleep(System.Threading.Timeout.Infinite);

       }
   }
}

<end sample app>

HTH,

Kevin Spencer
Chicken Salad Surgeon
Microsoft MVP