Encoding.WebName プロパティとは? わかりやすく解説

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Encoding.WebName プロパティ

派生クラスオーバーライドされた場合現在のエンコーディングIANA (Internet Assigned Numbers Authority) に登録されている名前を取得します

名前空間: System.Text
アセンブリ: mscorlib (mscorlib.dll 内)
構文構文

解説解説
使用例使用例

次のコード例は、HTML ヘッダーWebName挿入してます。

Imports System
Imports System.IO
Imports System.Text
Imports System.Web

Namespace WebNameExample
   Public Class ExampleClass
      
      Public Overloads Shared
 Sub Main()
         ' Use UTF8 encoding.
         Dim encoding As Encoding = Encoding.UTF8
         Dim writer As New
 StreamWriter("Encoding.html", False,
 encoding)
         
         writer.WriteLine("<html><head>")
         
         ' Write charset attribute to the html file.
         writer.Write("<META HTTP-EQUIV=""Content-Type""
 CONTENT=""text/html;")
         writer.WriteLine(" charset=" + encoding.WebName
 + """>")
         
         writer.WriteLine("</head><body>")
         writer.WriteLine("<p>" + HttpUtility.HtmlEncode(encoding.EncodingName)
 + "</p>")
         writer.WriteLine("</body></html>")
         writer.Flush()
         writer.Close()
      End Sub
   End Class
End Namespace
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);
             
     writer.WriteLine("<html><head>");

     // 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("</head><body>");
     writer.WriteLine("<p>" + HttpUtility.HtmlEncode(encoding.EncodingName)
 + "</p>");
     writer.WriteLine("</body></html>");
     writer.Flush();
     writer.Close();
      }
   }
}
#using <System.dll>
#using <System.Web.dll>

using namespace System;
using namespace System::IO;
using namespace System::Text;
using namespace System::Web;
int main()
{
   
   // Use UTF8 encoding.
   Encoding^ encoding = Encoding::UTF8;
   StreamWriter^ writer = gcnew StreamWriter( "Encoding.html",false,encoding
 );
   writer->WriteLine( "<html><head>" );
   
   // Write charset attribute to the html file.
   // writer -> WriteLine(S"<META HTTP-EQUIV=\"Content-Type\S"
 CONTENT=\"text/html; charset=S {0}", encoding.WebName +"\S">");
   writer->WriteLine( String::Concat( "<META HTTP-EQUIV=\"Content-Type\"
 CONTENT=\"text/html; charset=", encoding->WebName, "\">"
 ) );
   writer->WriteLine( "</head><body>" );
   writer->WriteLine( "<p>{0}</p>", HttpUtility::HtmlEncode(
 encoding->EncodingName ) );
   writer->WriteLine( "</body></html>" );
   writer->Flush();
   writer->Close();
}

package WebNameExample; 

import System.*;
import System.IO.*;
import System.Text.*;
import System.Web.*;

public class ExampleClass
{
    public static void main(String[]
 args)
    {
        // Use UTF8 encoding.
        Encoding encoding = Encoding.get_UTF8();
        StreamWriter writer = new 
            StreamWriter("Encoding.html", false, encoding);
        writer.WriteLine("<html><head>");

        // 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.get_WebName()
 + "\">"));
        writer.WriteLine("</head><body>");
        writer.WriteLine(("<p>" + 
            HttpUtility.HtmlEncode(encoding.get_EncodingName()) + "</p>"));
        writer.WriteLine("</body></html>");
        writer.Flush();
        writer.Close();
    } //mail
} //ExampleClass

次のコード例は、各エンコーディングさまざまな名前取得し、EncodingInfo.Name と異なる名前を少なくとも 1 つ持つエンコーディング表示します。EncodingName が表示されますが、これに対して照合行われません。

Imports System
Imports System.Text

Public Class SamplesEncoding   

   Public Shared Sub 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.
      Dim ei As EncodingInfo
      For Each ei In  Encoding.GetEncodings()
         Dim e As Encoding = ei.GetEncoding()
         
         If ei.Name <> e.BodyName OrElse
 ei.Name <> e.HeaderName OrElse ei.Name <> e.WebName
 Then
            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)
         End If

      Next ei 

   End Sub 'Main

End Class 'SamplesEncoding 


'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)

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)

*/

using namespace System;
using namespace System::Text;
int 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.
   System::Collections::IEnumerator^ myEnum = Encoding::GetEncodings()->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      EncodingInfo ^ ei = safe_cast<EncodingInfo ^>(myEnum->Current);
      Encoding^ e = ei->GetEncoding();
      if (  !ei->Name->Equals( e->BodyName ) ||  !ei->Name->Equals(
 e->HeaderName ) ||  !ei->Name->Equals( 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)

*/
import System.*;
import System.Text.*;

public class SamplesEncoding
{
    public static void main(String[]
 args)
    {
        // Print the header.
        Console.Write("Name               ");
        Console.Write("CodePage  ");
        Console.Write("BodyName           ");
        Console.Write("HeaderName         ");
        Console.Write("WebName            ");
        Console.WriteLine("Encoding.EncodingName");
        EncodingInfo ei[] = Encoding.GetEncodings();
        for(int iCtr = 0; iCtr < ei.length;
 iCtr++) {
            Encoding e = ei[iCtr].GetEncoding();
            if(!(ei[iCtr].get_Name().equalsIgnoreCase(e.get_BodyName()))
 
                || !(ei[iCtr].get_Name().equalsIgnoreCase(e.get_HeaderName()))
                || !(ei[iCtr].get_Name().equalsIgnoreCase(e.get_WebName()))) {
                Console.Write("{0,-18} ", ei[iCtr].get_Name());
                Console.Write("{0,-9} ", String.valueOf(e.get_CodePage()));
                Console.Write("{0,-18} ", e.get_BodyName());
                Console.Write("{0,-18} ", e.get_HeaderName());
                Console.Write("{0,-18} ", e.get_WebName());
                Console.WriteLine("{0} ", e.get_EncodingName());
            }
        }
    } //main
} //SamplesEncoding

/* 
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)

*/

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バージョン情報バージョン情報
参照参照
関連項目
Encoding クラス
Encoding メンバ
System.Text 名前空間
EncodingInfo.Name
Encoding.BodyName プロパティ
Encoding.EncodingName プロパティ
Encoding.HeaderName プロパティ



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