String - IsMatch

Indicates whether the specified regular expression finds a match in the specified input string.

public static void Main()
{
	string[] partNumbers= { "1298-673-4192", "A08Z-931-468A", 
                          "_A90-123-129X", "12345-KKA-1230", 
                          "0919-2893-1256" };
  	string pattern = @"^[a-zA-Z0-9]\d{2}[a-zA-Z0-9](-\d{3}){2}[A-Za-z0-9]$";
	
  	foreach (string partNumber in partNumbers)
  	{
	  	// C# Extension Method: String - IsMatch
	  	var result = partNumber.IsMatch(pattern);
		
      	Console.WriteLine("{0} {1} a valid part number.", partNumber, result ? "is" : "is not");
  	}
}

View Source

using System;
using System.Text.RegularExpressions;

public static partial class Extensions
{
    /// <summary>
    ///     Indicates whether the specified regular expression finds a match in the specified input string.
    /// </summary>
    /// <param name="input">The string to search for a match.</param>
    /// <param name="pattern">The regular expression pattern to match.</param>
    /// <returns>true if the regular expression finds a match; otherwise, false.</returns>
    public static Boolean IsMatch(this String input, String pattern)
    {
        return Regex.IsMatch(input, pattern);
    }

    /// <summary>
    ///     Indicates whether the specified regular expression finds a match in the specified input string, using the
    ///     specified matching options.
    /// </summary>
    /// <param name="input">The string to search for a match.</param>
    /// <param name="pattern">The regular expression pattern to match.</param>
    /// <param name="options">A bitwise combination of the enumeration values that provide options for matching.</param>
    /// <returns>true if the regular expression finds a match; otherwise, false.</returns>
    public static Boolean IsMatch(this String input, String pattern, RegexOptions options)
    {
        return Regex.IsMatch(input, pattern, options);
    }
}