Amido.SystemEx.IO.FileSystem.GetDirectoryName C# (CSharp) Method

        public string GetDirectoryName(string path)
        {
            if (string.IsNullOrEmpty(path))
                return null;

            char ending = path[path.Length - 1];

            if (ending == Path.DirectorySeparatorChar || ending == Path.AltDirectorySeparatorChar)
                path = path.Substring(0, path.Length - 1);

            return Path.GetDirectoryName(path);
        }