using System;
using System.Text.RegularExpressions;
 
namespace RegExTest
{
	class MainClass
	{
		public static void Main(string[] args)
		{
			string mystring = "<@faxcode>vorname#nachname#xxx#xxx</@faxcode>";
			string pattern = "(?<=<(\\@faxcode)>).*(?=</\\@faxcode>)";
			string[] items = null;
			Match match = null;
			Regex regex = new Regex(pattern);
			MatchCollection matches = regex.Matches(mystring);
 
			if (!(matches.Count > 0)) {
				Console.WriteLine ("<@faxcode> nicht gefunden!");
				return;
			}
 
			match = matches[0];
			Console.WriteLine ("before split: " + match.Value );
			items = match.Value.Split ( new char [] {'#'});
			foreach (string item in items) {
				Console.WriteLine (item);
			}
		}
	}
}