Encoding.HeaderName 属性
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
在派生类中重写时，获取可与邮件代理头标记一起使用的当前编码的名称。
public:
virtual property System::String ^ HeaderName { System::String ^ get(); };public virtual string HeaderName { get; }member this.HeaderName : stringPublic Overridable ReadOnly Property HeaderName As String属性值
与邮件代理头标记一起使用的当前 Encoding 的名称。
- 或 -
如果当前 Encoding 无法使用，则为空字符串 ("")。
示例
下面的示例检索每个编码的不同名称，并显示一个或多个名称不同于的编码 EncodingInfo.Name 。 它将显示， EncodingName 但不会对其进行比较。
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)
*/
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)
*/
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
End Class
'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)
注解
如果需要标头名称的编码，则应 GetEncoding 使用属性调用方法 HeaderName 。 通常，方法从调用中提供的测试编码检索不同的编码。 通常，只有电子邮件应用程序需要检索这种编码。
在某些情况下，属性的值 BodyName 对应于定义该编码的国际标准。 这并不意味着实现完全符合该标准。
请注意， WebName 返回用于描述编码的名称。 此 HeaderName 属性定义了一个可能更适用于电子邮件应用程序的不同编码，例如。 但是，不建议使用属性来定义编码。