Is Match successful

   


using System;
using System.Text.RegularExpressions;

public class EntryPoint
{
    static void Main( string[] args ) {
        // Create regex to search for IP address pattern.
        string pattern = @"([01]?dd?|2[0-4]d|25[0-5])." +
                         @"([01]?dd?|2[0-4]d|25[0-5])." +
                         @"([01]?dd?|2[0-4]d|25[0-5])." +
                         @"([01]?dd?|2[0-4]d|25[0-5])";
        Regex regex = new Regex( pattern );
        Match match = regex.Match( "192.168.169.1" );
        while( match.Success ) {
            Console.WriteLine( "IP Address found at {0} with " +
                               "value of {1}",
                               match.Index,
                               match.Value );
            Console.WriteLine( "Groups are:" );
            foreach( Group g in match.Groups ) {
                Console.WriteLine( "	{0} at {1}",
                                   g.Value,
                                   g.Index );
            }
            match = match.NextMatch();            
        }
    }
}