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Regex.Replace Method (String, String, Int32, Int32)

Within a specified input substring, replaces a specified maximum number of strings that match a regular expression pattern with a specified replacement string.

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

public string Replace (
	string input,
	string replacement,
	int count,
	int startat
)
public String Replace (
	String input, 
	String replacement, 
	int count, 
	int startat
)
public function Replace (
	input : String, 
	replacement : String, 
	count : int, 
	startat : int
) : String
Not applicable.

Parameters

input

The string to search for a match.

replacement

The replacement string.

count

Maximum number of times the replacement can occur.

startat

The character position in the input string where the search begins.

Return Value

A new string that is identical to the input string, except that a replacement string takes the place of each matched string.

Exception typeCondition

ArgumentNullException

input is a null reference (Nothing in Visual Basic).

-or-

replacement is a null reference (Nothing in Visual Basic).

The search for matches starts in the input parameter string at the position specified by the startat parameter. The regular expression is the pattern defined by the constructor for the current Regex object. If count is negative, replacements continue to the end of the string.

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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