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Encoding.WebName Property

When overridden in a derived class, gets the name registered with the Internet Assigned Numbers Authority (IANA) for the current encoding.

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

public virtual string WebName { get; }

Property Value

Type: System.String
The IANA name for the current Encoding.

The WebName property is the same as the Name property.

Note that WebName returns an IANA-registered name for the encoding. The HeaderName property defines a different encoding that might work better for e-mail headers. However, most applications should use WebName instead.

For more information on the IANA, go to

The following example includes the WebName in an HTML header.

using System;
using System.IO;
using System.Text;
using System.Web;

namespace WebNameExample 
   public class ExampleClass 
      public static void Main(string[] args) 
         // Use UTF8 encoding.
	 Encoding encoding = Encoding.UTF8;
	 StreamWriter writer = new StreamWriter("Encoding.html", false, encoding);

	 // Write charset attribute to the html file. 
	 // The value of charset is returned by the WebName property.
	 writer.WriteLine("<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=" +
                           encoding.WebName +"\">");
	 writer.WriteLine("<p>" + HttpUtility.HtmlEncode(encoding.EncodingName) + "</p>");

This code produces the following output in an HTML file.

<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<p>Unicode (UTF-8)</p>


The following example retrieves the different names for each encoding and displays the encodings with one or more names that are different from EncodingInfo.Name. It displays EncodingName but does not compare against it.

using System;
using System.Text;

public class SamplesEncoding  {

   public static void Main()  {

      // Print the header.
      Console.Write( "Name               " );
      Console.Write( "CodePage  " );
      Console.Write( "BodyName           " );
      Console.Write( "HeaderName         " );
      Console.Write( "WebName            " );
      Console.WriteLine( "Encoding.EncodingName" );

      // For every encoding, compare the name properties with EncodingInfo.Name. 
      // Display only the encodings that have one or more different names. 
      foreach( EncodingInfo ei in Encoding.GetEncodings() )  {
         Encoding e = ei.GetEncoding();

         if (( ei.Name != e.BodyName ) || ( ei.Name != e.HeaderName ) || ( ei.Name != e.WebName ))  {
            Console.Write( "{0,-18} ", ei.Name );
            Console.Write( "{0,-9} ",  e.CodePage );
            Console.Write( "{0,-18} ", e.BodyName );
            Console.Write( "{0,-18} ", e.HeaderName );
            Console.Write( "{0,-18} ", e.WebName );
            Console.WriteLine( "{0} ", e.EncodingName );




This code produces the following output.

Name               CodePage  BodyName           HeaderName         WebName            Encoding.EncodingName
shift_jis          932       iso-2022-jp        iso-2022-jp        shift_jis          Japanese (Shift-JIS)
windows-1250       1250      iso-8859-2         windows-1250       windows-1250       Central European (Windows)
windows-1251       1251      koi8-r             windows-1251       windows-1251       Cyrillic (Windows)
Windows-1252       1252      iso-8859-1         Windows-1252       Windows-1252       Western European (Windows)
windows-1253       1253      iso-8859-7         windows-1253       windows-1253       Greek (Windows)
windows-1254       1254      iso-8859-9         windows-1254       windows-1254       Turkish (Windows)
csISO2022JP        50221     iso-2022-jp        iso-2022-jp        csISO2022JP        Japanese (JIS-Allow 1 byte Kana)
iso-2022-kr        50225     iso-2022-kr        euc-kr             iso-2022-kr        Korean (ISO)


Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0