Month: October 2008

using System; using System.Text.RegularExpressions; class RegexSubstitution { public static void Main() { string text = “124”; if ( !Regex.Match(text,@”^[1-9]\d{2}-[1-9]\d{2}-\d{4}$” ).Success ) { Console.WriteLine( “Invalid phone number”); } } } Validate Phone Number public bool IsValidUSPhone(string number) { return Regex.IsMatch(number, @”\(\d{3}\)\s\d{3}-\d{4}”); } Matching and Grouping Regular Expressions using Regex in C#