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Char.IsPunctuation Method (String, Int32)

Indicates whether the character at the specified position in a specified string is categorized as a punctuation mark.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

public static bool IsPunctuation (
	string s,
	int index
)
public static boolean IsPunctuation (
	String s, 
	int index
)
public static function IsPunctuation (
	s : String, 
	index : int
) : boolean

Parameters

s

A string.

index

The character position in s.

Return Value

true if the character at position index in s is a punctuation mark; otherwise, false.

Exception typeCondition

ArgumentNullException

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

ArgumentOutOfRangeException

index is less than zero or greater than the last position in s.

Character positions in a string are indexed starting from zero.

Valid punctuation marks are members of the following categories in UnicodeCategory: ConnectorPunctuation, DashPunctuation, OpenPunctuation, ClosePunctuation, InititalQuotePunctuation, FinalQuotePunctuation, or OtherPunctuation.

The following code example demonstrates IsPunctuation.

using System;

public class IsPunctuationSample {
	public static void Main() {
		char ch = '.';

		Console.WriteLine(Char.IsPunctuation(ch));						// Output: "True"
		Console.WriteLine(Char.IsPunctuation("no punctuation", 3));		// Output: "False"
	}
}

import System.*;

public class IsPunctuationSample
{
    public static void main(String[] args)
    {
        char ch = '.';
        // Output: "True"
        Console.WriteLine(Char.IsPunctuation(ch));                        
        // Output: "False"
        Console.WriteLine(Char.IsPunctuation("no punctuation", 3));                
    } //main
}//IsPunctuationSample

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

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