using System;
using System.IO;
public class MainClass
{
public static void Main()
{
string filename;
filename = ExtractFilename(@"C:\temp\notafile.txt");
Console.WriteLine("{0}", String.IsNullOrEmpty(filename) ? "<none>" : filename);
}
public static string ExtractFilename(string filepath)
{
if (filepath.Trim().EndsWith(@"\"))
return String.Empty;
int position = filepath.LastIndexOf('\\');
if (position == -1)
{
if (File.Exists(Environment.CurrentDirectory + Path.DirectorySeparatorChar + filepath))
return filepath;
else
return String.Empty;
}
else
{
if (File.Exists(filepath))
return filepath.Substring(position + 1);
else
return String.Empty;
}
}
}
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