Artikel
11/18/2011

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

c
Type: System.Char
A Unicode character.

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.

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