Char.IsWhiteSpace Method

Definition

Namespace:
System
Assembly:
System.Runtime.dll
Assemblies:
mscorlib.dll, System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Indicates whether a Unicode character is categorized as white space.

Overloads

IsWhiteSpace(Char)

Indicates whether the specified Unicode character is categorized as white space.
IsWhiteSpace(String, Int32)

Indicates whether the character at the specified position in a specified string is categorized as white space.

Examples

The following example demonstrates the IsWhiteSpace(Char) method.

using namespace System;
int main()
{
   String^ str =  "black matter";
   Console::WriteLine( Char::IsWhiteSpace( 'A' ) ); // Output: "False"
   Console::WriteLine( Char::IsWhiteSpace( str, 5 ) ); // Output: "True"
}

using System;

public class IsWhiteSpaceSample {
    public static void Main() {
        string str = "black matter";

        Console.WriteLine(Char.IsWhiteSpace('A'));		// Output: "False"
        Console.WriteLine(Char.IsWhiteSpace(str, 5));	// Output: "True"
    }
}

Module IsWhiteSpaceSample

    Sub Main()

        Dim str As String
        str = "black matter"

        Console.WriteLine(Char.IsWhiteSpace("A"c))      ' Output: "False"
        Console.WriteLine(Char.IsWhiteSpace(str, 5))    ' Output: "True"

    End Sub

End Module

Remarks

White space characters are the following Unicode characters:

  • Members of the UnicodeCategory.SpaceSeparator category, which includes the characters SPACE (U+0020), NO-BREAK SPACE (U+00A0), OGHAM SPACE MARK (U+1680), EN QUAD (U+2000), EM QUAD (U+2001), EN SPACE (U+2002), EM SPACE (U+2003), THREE-PER-EM SPACE (U+2004), FOUR-PER-EM SPACE (U+2005), SIX-PER-EM SPACE (U+2006), FIGURE SPACE (U+2007), PUNCTUATION SPACE (U+2008), THIN SPACE (U+2009), HAIR SPACE (U+200A), NARROW NO-BREAK SPACE (U+202F), MEDIUM MATHEMATICAL SPACE (U+205F), and IDEOGRAPHIC SPACE (U+3000).

  • Members of the UnicodeCategory.LineSeparator category, which consists solely of the LINE SEPARATOR character (U+2028).

  • Members of the UnicodeCategory.ParagraphSeparator category, which consists solely of the PARAGRAPH SEPARATOR character (U+2029).

  • The characters CHARACTER TABULATION (U+0009), LINE FEED (U+000A), LINE TABULATION (U+000B), FORM FEED (U+000C), CARRIAGE RETURN (U+000D), and NEXT LINE (U+0085).

IsWhiteSpace(Char)

Indicates whether the specified Unicode character is categorized as white space.

public:
 static bool IsWhiteSpace(char c);
public static bool IsWhiteSpace (char c);
static member IsWhiteSpace : char -> bool
Public Shared Function IsWhiteSpace (c As Char) As Boolean

Parameters

c
Char

The Unicode character to evaluate.

Returns

Boolean

true if c is white space; otherwise, false.

Remarks

White space characters are the following Unicode characters:

  • Members of the UnicodeCategory.SpaceSeparator category, which includes the characters SPACE (U+0020), NO-BREAK SPACE (U+00A0), OGHAM SPACE MARK (U+1680), EN QUAD (U+2000), EM QUAD (U+2001), EN SPACE (U+2002), EM SPACE (U+2003), THREE-PER-EM SPACE (U+2004), FOUR-PER-EM SPACE (U+2005), SIX-PER-EM SPACE (U+2006), FIGURE SPACE (U+2007), PUNCTUATION SPACE (U+2008), THIN SPACE (U+2009), HAIR SPACE (U+200A), NARROW NO-BREAK SPACE (U+202F), MEDIUM MATHEMATICAL SPACE (U+205F), and IDEOGRAPHIC SPACE (U+3000).

  • Members of the UnicodeCategory.LineSeparator category, which consists solely of the LINE SEPARATOR character (U+2028).

  • Members of the UnicodeCategory.ParagraphSeparator category, which consists solely of the PARAGRAPH SEPARATOR character (U+2029).

  • The characters CHARACTER TABULATION (U+0009), LINE FEED (U+000A), LINE TABULATION (U+000B), FORM FEED (U+000C), CARRIAGE RETURN (U+000D), and NEXT LINE (U+0085).

See also

Applies to

IsWhiteSpace(String, Int32)

Indicates whether the character at the specified position in a specified string is categorized as white space.

public:
 static bool IsWhiteSpace(System::String ^ s, int index);
public static bool IsWhiteSpace (string s, int index);
static member IsWhiteSpace : string * int -> bool
Public Shared Function IsWhiteSpace (s As String, index As Integer) As Boolean

Parameters

s
String

A string.

index
Int32

The position of the character to evaluate in s.

Returns

Boolean

true if the character at position index in s is white space; otherwise, false.

Exceptions

ArgumentNullException

s is null.

ArgumentOutOfRangeException

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

Remarks

Character positions in a string are indexed starting from zero.

White space characters are the following Unicode characters:

  • Members of the UnicodeCategory.SpaceSeparator category, which includes the characters SPACE (U+0020), NO-BREAK SPACE (U+00A0), OGHAM SPACE MARK (U+1680), EN QUAD (U+2000), EM QUAD (U+2001), EN SPACE (U+2002), EM SPACE (U+2003), THREE-PER-EM SPACE (U+2004), FOUR-PER-EM SPACE (U+2005), SIX-PER-EM SPACE (U+2006), FIGURE SPACE (U+2007), PUNCTUATION SPACE (U+2008), THIN SPACE (U+2009), HAIR SPACE (U+200A), NARROW NO-BREAK SPACE (U+202F), MEDIUM MATHEMATICAL SPACE (U+205F), and IDEOGRAPHIC SPACE (U+3000).

  • Members of the UnicodeCategory.LineSeparator category, which consists solely of the LINE SEPARATOR character (U+2028).

  • Members of the UnicodeCategory.ParagraphSeparator category, which consists solely of the PARAGRAPH SEPARATOR character (U+2029).

  • The characters CHARACTER TABULATION (U+0009), LINE FEED (U+000A), LINE TABULATION (U+000B), FORM FEED (U+000C), CARRIAGE RETURN (U+000D), and NEXT LINE (U+0085).

See also

Applies to