using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
public class Utils
{
public static string GetFileType(string pathFilename)
{
string rc = "";
int start = pathFilename.LastIndexOf('.');
if ((start > -1) && ((start + 1) < pathFilename.Length))
rc = pathFilename.Substring(start + 1);
return rc;
}
}