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Regex.IsMatch Method (String, Int32)

Indicates whether the regular expression specified in the Regex constructor finds a match in the input string beginning at the specified starting position in the string.

Namespace: System.Text.RegularExpressions
Assembly: System (in system.dll)

public bool IsMatch (
	string input,
	int startat
public boolean IsMatch (
	String input, 
	int startat
public function IsMatch (
	input : String, 
	startat : int
) : boolean



The string to search for a match.


The character position at which to start the search.

Return Value

true if the regular expression finds a match; otherwise, false.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0