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Char.IsPunctuation Method (Char)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Indicates whether the specified Unicode character is categorized as a punctuation mark.

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

Syntax

'Declaration
Public Shared Function IsPunctuation ( _
    c As Char _
) As Boolean

public static bool IsPunctuation(
    char c
)

Parameters

Return Value

Type: System.Boolean
true if c is a punctuation mark; otherwise, false.

Remarks

Valid punctuation marks are members of the following categories in UnicodeCategory: ConnectorPunctuation, DashPunctuation, OpenPunctuation, ClosePunctuation, InititalQuotePunctuation, FinalQuotePunctuation, or OtherPunctuation. They include characters with the Unicode code points listed in the following table.

U+0021 to U+0023

U+060C and U+060D

U+1800 to U+180A

U+3014 to U+301F

U+0025 to U+002A

U+061B

U+1944 and U+1945

U+3030

U+002C to U+002F

U+061E and U+061F

U+19DE and U+19DF

U+303D

U+003A and U+003B

U+066A to U+066D

U+1A1E and U+1A1F

U+30A0

U+003F and U+0040

U+06D4

U+1B5A to U+1B60

U+30FB

U+005B to U+005D

U+0700 to U+070D

U+2010 to U+2027

U+A874 to U+A877

U+005F

U+07F7 to U+07F9

U+2030 to U+2043

U+FD3E and U+FD3F

U+007B

U+0964 and U+0965

U+2045 to U+2051

U+FE10 to U+FE19

U+007D

U+0970

U+2053 to U+205E

U+FE30 to U+FE52

U+00A1

U+0DF4

U+207D and U+207E

U+FE54 to U+FE61

U+00AB

U+0E4F to U+0E5B

U+208D and U+208E

U+FE63

U+00AD

U+0F04 to U+0F12

U+2329 and U+232A

U+FE68

U+00B7

U+0F3A to U+0F3D

U+2768 to U+2775

U+FE6A and U+FE6B

U+00BB

U+0F85

U+27C5 to U+27C6

U+FF01 to U+FF03

U+00BF

U+0FD0 and U+0FD1

U+27E6 to U+27EB

U+FF05 to U+FF0A

U+037E

U+104A to U+104F

U+2983 to U+2998

U+FF0C to U+FF0F

U+0387

U+10FB

U+29D8 to U+29DB

U+FF1A and U+FF1B

U+055A to U+055F

U+1361 to U+1368

U+29FC and U+29FD

U+FF1F and U+FF20

U+0589 and U+058A

U+166D and U+166E

U+2CF9 to U+2CFC

U+FF3B to U+FF3D

U+05BE

U+169B and U+169C

U+2CFE and U+2CFF

U+FF3F

U+05C0

U+16EB to U+16ED

U+2E00 to U+2E17

U+FF5B

U+05C3

U+1735 and U+1736

U+2E1C and U+2E1D

U+FF5D

U+05C6

U+17D4 to U+17D6

U+3001 to U+3003

U+FF5F to U+FF65

U+05F3 and U+05F4

U+17D8 to U+17DA

U+3008 to U+3011

Examples

The following example demonstrates IsPunctuation.


Module Example

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      Dim ch As Char
      ch = "."c

      outputBlock.Text &= Char.IsPunctuation(ch) & vbCrLf                   ' Output: "True"
      outputBlock.Text += String.Format(Char.IsPunctuation("no punctuation", 3)) & vbCrLf  ' Output: "False"

   End Sub

End Module

using System;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      char ch = '.';

      outputBlock.Text += Char.IsPunctuation(ch).ToString() + "\n";                   
      outputBlock.Text += Char.IsPunctuation("no punctuation", 3).ToString();    
   }
}
// This example produces the following output:
//       True 
//       False

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.