using System;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

        Regex rexCsvSplitter = new Regex(@",(?=(?:[^""]*""[^""]*"")*(?![^""]*""))");

        string str1 = "\"\"|\"FAN100\"|\"\"|\"XXXXX XXXXX,XXX.\"|\"9999 XXXXXX,XXX XXXXX\"|\"\"|\"XXXXXXXXXXX\"|\"ON\"|\"X9X 9X9\"|\"XXX\"|\"99\"|\"XXX\"|\"999 999-9999\"|\"999 999-9999\"|\"XXXX XXXX\"|\"xxx@xxx.xxx\"|\"N\"|\"\"|\"0099\"|\"XXX\"|\"X\"|\"\"|\"\"";

        string str2 = "\"\"|\"FAN100\"|\"\"|\"XXXXX XXXXX,XXX.\"|\"XX XXXX 9999,XXXXXX XXXXXX \"\"X\"\"|\"\"|\"XXXXXX\"|\"ON\"|\"XXX XXX\"|\"XXX\"|\"99\"|\"XXX\"|\"999 999-9999\"|\"999 999-9999\"|\"XXXX XXXX\"|\"xxx@xxx.xxx\"|\"N\"|\"\"|\"0099\"|\"XXX\"|\"X\"|\"\"|\"\"";

        Console.WriteLine("Hello World: {0}, {1}",rexCsvSplitter.Split(str1).Length,rexCsvSplitter.Split(str2).Length);

    }

}