Regex.Matches Method (String, String)
Updated: September 2010
Searches the specified input string for all occurrences of the regular expression specified in the pattern parameter.
Assembly: System (in System.dll)
public static function Matches( input : String, pattern : String ) : MatchCollection
- Type: System.String
The string to search for a match.
- Type: System.String
The regular expression pattern to match.
The method is similar to the Match method, except that it returns information about all the matches, instead of a single match, found in the input string. It is equivalent to the following code:
The collection includes only successful matches and terminates at the first unsuccessful match.
The static Matches methods are equivalent to constructing a Regex object with the specified regular expression pattern and calling the instance Matches method.
The pattern parameter consists of various regular expression language elements that symbolically describe the string to match. For more information about regular expressions, see .NET Framework Regular Expressions and Regular Expression Language - Quick Reference.
The Matches method uses lazy evaluation to populate the returned MatchCollection object. Accessing such members of this collection as MatchCollection.Count and MatchCollection.CopyTo causes the collection to be populated immediately. To take advantage of lazy evaluation, you should iterate the collection by using a construct such as foreach in C# and For Each…Next in Visual Basic.
The following example uses the method to identify any word in a sentence that ends in "es".
The regular expression pattern \b\w+es\b is defined as shown in the following table.
Begin the match at a word boundary.
Match one or more word characters.
Match the literal string "es".
End the match at a word boundary.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.