Encoding.IsSingleByte Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
When overridden in a derived class, gets a value indicating whether the current encoding uses single-byte code points.
public:
virtual property bool IsSingleByte { bool get(); };public virtual bool IsSingleByte { get; }[System.Runtime.InteropServices.ComVisible(false)]
public virtual bool IsSingleByte { get; }member this.IsSingleByte : bool[<System.Runtime.InteropServices.ComVisible(false)>]
member this.IsSingleByte : boolPublic Overridable ReadOnly Property IsSingleByte As BooleanProperty Value
true if the current Encoding uses single-byte code points; otherwise, false.
- Attributes
Examples
The following example checks the values of the Boolean properties of each encoding.
using namespace System;
using namespace System::Text;
int main()
{
// Print the header.
Console::Write( "CodePage identifier and name " );
Console::Write( "BrDisp BrSave " );
Console::Write( "MNDisp MNSave " );
Console::WriteLine( "1-Byte ReadOnly " );
// For every encoding, get the property values.
System::Collections::IEnumerator^ myEnum = Encoding::GetEncodings()->GetEnumerator();
while ( myEnum->MoveNext() )
{
EncodingInfo ^ ei = safe_cast<EncodingInfo ^>(myEnum->Current);
Encoding^ e = ei->GetEncoding();
Console::Write( "{0,-6} {1,-25} ", ei->CodePage, ei->Name );
Console::Write( "{0,-8} {1,-8} ", e->IsBrowserDisplay, e->IsBrowserSave );
Console::Write( "{0,-8} {1,-8} ", e->IsMailNewsDisplay, e->IsMailNewsSave );
Console::WriteLine( "{0,-8} {1,-8} ", e->IsSingleByte, e->IsReadOnly );
}
}
/*
This code produces the following output.
CodePage identifier and name BrDisp BrSave MNDisp MNSave 1-Byte ReadOnly
37 IBM037 False False False False True True
437 IBM437 False False False False True True
500 IBM500 False False False False True True
708 ASMO-708 True True False False True True
720 DOS-720 True True False False True True
737 ibm737 False False False False True True
775 ibm775 False False False False True True
850 ibm850 False False False False True True
852 ibm852 True True False False True True
855 IBM855 False False False False True True
857 ibm857 False False False False True True
858 IBM00858 False False False False True True
860 IBM860 False False False False True True
861 ibm861 False False False False True True
862 DOS-862 True True False False True True
863 IBM863 False False False False True True
864 IBM864 False False False False True True
865 IBM865 False False False False True True
866 cp866 True True False False True True
869 ibm869 False False False False True True
870 IBM870 False False False False True True
874 windows-874 True True True True True True
875 cp875 False False False False True True
932 shift_jis True True True True False True
936 gb2312 True True True True False True
949 ks_c_5601-1987 True True True True False True
950 big5 True True True True False True
1026 IBM1026 False False False False True True
1047 IBM01047 False False False False True True
1140 IBM01140 False False False False True True
1141 IBM01141 False False False False True True
1142 IBM01142 False False False False True True
1143 IBM01143 False False False False True True
1144 IBM01144 False False False False True True
1145 IBM01145 False False False False True True
1146 IBM01146 False False False False True True
1147 IBM01147 False False False False True True
1148 IBM01148 False False False False True True
1149 IBM01149 False False False False True True
1200 utf-16 False True False False False True
1201 unicodeFFFE False False False False False True
1250 windows-1250 True True True True True True
1251 windows-1251 True True True True True True
1252 Windows-1252 True True True True True True
1253 windows-1253 True True True True True True
1254 windows-1254 True True True True True True
1255 windows-1255 True True True True True True
1256 windows-1256 True True True True True True
1257 windows-1257 True True True True True True
1258 windows-1258 True True True True True True
1361 Johab False False False False False True
10000 macintosh False False False False True True
10001 x-mac-japanese False False False False False True
10002 x-mac-chinesetrad False False False False False True
10003 x-mac-korean False False False False False True
10004 x-mac-arabic False False False False True True
10005 x-mac-hebrew False False False False True True
10006 x-mac-greek False False False False True True
10007 x-mac-cyrillic False False False False True True
10008 x-mac-chinesesimp False False False False False True
10010 x-mac-romanian False False False False True True
10017 x-mac-ukrainian False False False False True True
10021 x-mac-thai False False False False True True
10029 x-mac-ce False False False False True True
10079 x-mac-icelandic False False False False True True
10081 x-mac-turkish False False False False True True
10082 x-mac-croatian False False False False True True
12000 utf-32 False False False False False True
12001 utf-32BE False False False False False True
20000 x-Chinese-CNS False False False False False True
20001 x-cp20001 False False False False False True
20002 x-Chinese-Eten False False False False False True
20003 x-cp20003 False False False False False True
20004 x-cp20004 False False False False False True
20005 x-cp20005 False False False False False True
20105 x-IA5 False False False False True True
20106 x-IA5-German False False False False True True
20107 x-IA5-Swedish False False False False True True
20108 x-IA5-Norwegian False False False False True True
20127 us-ascii False False True True True True
20261 x-cp20261 False False False False False True
20269 x-cp20269 False False False False True True
20273 IBM273 False False False False True True
20277 IBM277 False False False False True True
20278 IBM278 False False False False True True
20280 IBM280 False False False False True True
20284 IBM284 False False False False True True
20285 IBM285 False False False False True True
20290 IBM290 False False False False True True
20297 IBM297 False False False False True True
20420 IBM420 False False False False True True
20423 IBM423 False False False False True True
20424 IBM424 False False False False True True
20833 x-EBCDIC-KoreanExtended False False False False True True
20838 IBM-Thai False False False False True True
20866 koi8-r True True True True True True
20871 IBM871 False False False False True True
20880 IBM880 False False False False True True
20905 IBM905 False False False False True True
20924 IBM00924 False False False False True True
20932 EUC-JP False False False False False True
20936 x-cp20936 False False False False False True
20949 x-cp20949 False False False False False True
21025 cp1025 False False False False True True
21866 koi8-u True True True True True True
28591 iso-8859-1 True True True True True True
28592 iso-8859-2 True True True True True True
28593 iso-8859-3 False False True True True True
28594 iso-8859-4 True True True True True True
28595 iso-8859-5 True True True True True True
28596 iso-8859-6 True True True True True True
28597 iso-8859-7 True True True True True True
28598 iso-8859-8 True True False False True True
28599 iso-8859-9 True True True True True True
28603 iso-8859-13 False False True True True True
28605 iso-8859-15 False True True True True True
29001 x-Europa False False False False True True
38598 iso-8859-8-i True True True True True True
50220 iso-2022-jp False False True True False True
50221 csISO2022JP False True True True False True
50222 iso-2022-jp False False False False False True
50225 iso-2022-kr False False True False False True
50227 x-cp50227 False False False False False True
51932 euc-jp True True True True False True
51936 EUC-CN False False False False False True
51949 euc-kr False False True True False True
52936 hz-gb-2312 True True True True False True
54936 GB18030 True True True True False True
57002 x-iscii-de False False False False False True
57003 x-iscii-be False False False False False True
57004 x-iscii-ta False False False False False True
57005 x-iscii-te False False False False False True
57006 x-iscii-as False False False False False True
57007 x-iscii-or False False False False False True
57008 x-iscii-ka False False False False False True
57009 x-iscii-ma False False False False False True
57010 x-iscii-gu False False False False False True
57011 x-iscii-pa False False False False False True
65001 utf-8 True True True True False True
*/
using System;
using System.Text;
public class SamplesEncoding {
public static void Main() {
// Print the header.
Console.Write( "CodePage identifier and name " );
Console.Write( "BrDisp BrSave " );
Console.Write( "MNDisp MNSave " );
Console.WriteLine( "1-Byte ReadOnly " );
// For every encoding, get the property values.
foreach( EncodingInfo ei in Encoding.GetEncodings() ) {
Encoding e = ei.GetEncoding();
Console.Write( "{0,-6} {1,-25} ", ei.CodePage, ei.Name );
Console.Write( "{0,-8} {1,-8} ", e.IsBrowserDisplay, e.IsBrowserSave );
Console.Write( "{0,-8} {1,-8} ", e.IsMailNewsDisplay, e.IsMailNewsSave );
Console.WriteLine( "{0,-8} {1,-8} ", e.IsSingleByte, e.IsReadOnly );
}
}
}
/*
This code produces the following output.
CodePage identifier and name BrDisp BrSave MNDisp MNSave 1-Byte ReadOnly
37 IBM037 False False False False True True
437 IBM437 False False False False True True
500 IBM500 False False False False True True
708 ASMO-708 True True False False True True
720 DOS-720 True True False False True True
737 ibm737 False False False False True True
775 ibm775 False False False False True True
850 ibm850 False False False False True True
852 ibm852 True True False False True True
855 IBM855 False False False False True True
857 ibm857 False False False False True True
858 IBM00858 False False False False True True
860 IBM860 False False False False True True
861 ibm861 False False False False True True
862 DOS-862 True True False False True True
863 IBM863 False False False False True True
864 IBM864 False False False False True True
865 IBM865 False False False False True True
866 cp866 True True False False True True
869 ibm869 False False False False True True
870 IBM870 False False False False True True
874 windows-874 True True True True True True
875 cp875 False False False False True True
932 shift_jis True True True True False True
936 gb2312 True True True True False True
949 ks_c_5601-1987 True True True True False True
950 big5 True True True True False True
1026 IBM1026 False False False False True True
1047 IBM01047 False False False False True True
1140 IBM01140 False False False False True True
1141 IBM01141 False False False False True True
1142 IBM01142 False False False False True True
1143 IBM01143 False False False False True True
1144 IBM01144 False False False False True True
1145 IBM01145 False False False False True True
1146 IBM01146 False False False False True True
1147 IBM01147 False False False False True True
1148 IBM01148 False False False False True True
1149 IBM01149 False False False False True True
1200 utf-16 False True False False False True
1201 unicodeFFFE False False False False False True
1250 windows-1250 True True True True True True
1251 windows-1251 True True True True True True
1252 Windows-1252 True True True True True True
1253 windows-1253 True True True True True True
1254 windows-1254 True True True True True True
1255 windows-1255 True True True True True True
1256 windows-1256 True True True True True True
1257 windows-1257 True True True True True True
1258 windows-1258 True True True True True True
1361 Johab False False False False False True
10000 macintosh False False False False True True
10001 x-mac-japanese False False False False False True
10002 x-mac-chinesetrad False False False False False True
10003 x-mac-korean False False False False False True
10004 x-mac-arabic False False False False True True
10005 x-mac-hebrew False False False False True True
10006 x-mac-greek False False False False True True
10007 x-mac-cyrillic False False False False True True
10008 x-mac-chinesesimp False False False False False True
10010 x-mac-romanian False False False False True True
10017 x-mac-ukrainian False False False False True True
10021 x-mac-thai False False False False True True
10029 x-mac-ce False False False False True True
10079 x-mac-icelandic False False False False True True
10081 x-mac-turkish False False False False True True
10082 x-mac-croatian False False False False True True
12000 utf-32 False False False False False True
12001 utf-32BE False False False False False True
20000 x-Chinese-CNS False False False False False True
20001 x-cp20001 False False False False False True
20002 x-Chinese-Eten False False False False False True
20003 x-cp20003 False False False False False True
20004 x-cp20004 False False False False False True
20005 x-cp20005 False False False False False True
20105 x-IA5 False False False False True True
20106 x-IA5-German False False False False True True
20107 x-IA5-Swedish False False False False True True
20108 x-IA5-Norwegian False False False False True True
20127 us-ascii False False True True True True
20261 x-cp20261 False False False False False True
20269 x-cp20269 False False False False True True
20273 IBM273 False False False False True True
20277 IBM277 False False False False True True
20278 IBM278 False False False False True True
20280 IBM280 False False False False True True
20284 IBM284 False False False False True True
20285 IBM285 False False False False True True
20290 IBM290 False False False False True True
20297 IBM297 False False False False True True
20420 IBM420 False False False False True True
20423 IBM423 False False False False True True
20424 IBM424 False False False False True True
20833 x-EBCDIC-KoreanExtended False False False False True True
20838 IBM-Thai False False False False True True
20866 koi8-r True True True True True True
20871 IBM871 False False False False True True
20880 IBM880 False False False False True True
20905 IBM905 False False False False True True
20924 IBM00924 False False False False True True
20932 EUC-JP False False False False False True
20936 x-cp20936 False False False False False True
20949 x-cp20949 False False False False False True
21025 cp1025 False False False False True True
21866 koi8-u True True True True True True
28591 iso-8859-1 True True True True True True
28592 iso-8859-2 True True True True True True
28593 iso-8859-3 False False True True True True
28594 iso-8859-4 True True True True True True
28595 iso-8859-5 True True True True True True
28596 iso-8859-6 True True True True True True
28597 iso-8859-7 True True True True True True
28598 iso-8859-8 True True False False True True
28599 iso-8859-9 True True True True True True
28603 iso-8859-13 False False True True True True
28605 iso-8859-15 False True True True True True
29001 x-Europa False False False False True True
38598 iso-8859-8-i True True True True True True
50220 iso-2022-jp False False True True False True
50221 csISO2022JP False True True True False True
50222 iso-2022-jp False False False False False True
50225 iso-2022-kr False False True False False True
50227 x-cp50227 False False False False False True
51932 euc-jp True True True True False True
51936 EUC-CN False False False False False True
51949 euc-kr False False True True False True
52936 hz-gb-2312 True True True True False True
54936 GB18030 True True True True False True
57002 x-iscii-de False False False False False True
57003 x-iscii-be False False False False False True
57004 x-iscii-ta False False False False False True
57005 x-iscii-te False False False False False True
57006 x-iscii-as False False False False False True
57007 x-iscii-or False False False False False True
57008 x-iscii-ka False False False False False True
57009 x-iscii-ma False False False False False True
57010 x-iscii-gu False False False False False True
57011 x-iscii-pa False False False False False True
65001 utf-8 True True True True False True
*/
Imports System.Text
Public Class SamplesEncoding
Public Shared Sub Main()
' Print the header.
Console.Write("CodePage identifier and name ")
Console.Write("BrDisp BrSave ")
Console.Write("MNDisp MNSave ")
Console.WriteLine("1-Byte ReadOnly ")
' For every encoding, get the property values.
Dim ei As EncodingInfo
For Each ei In Encoding.GetEncodings()
Dim e As Encoding = ei.GetEncoding()
Console.Write("{0,-6} {1,-25} ", ei.CodePage, ei.Name)
Console.Write("{0,-8} {1,-8} ", e.IsBrowserDisplay, e.IsBrowserSave)
Console.Write("{0,-8} {1,-8} ", e.IsMailNewsDisplay, e.IsMailNewsSave)
Console.WriteLine("{0,-8} {1,-8} ", e.IsSingleByte, e.IsReadOnly)
Next ei
End Sub
End Class
'This code produces the following output.
'
'CodePage identifier and name BrDisp BrSave MNDisp MNSave 1-Byte ReadOnly
'37 IBM037 False False False False True True
'437 IBM437 False False False False True True
'500 IBM500 False False False False True True
'708 ASMO-708 True True False False True True
'720 DOS-720 True True False False True True
'737 ibm737 False False False False True True
'775 ibm775 False False False False True True
'850 ibm850 False False False False True True
'852 ibm852 True True False False True True
'855 IBM855 False False False False True True
'857 ibm857 False False False False True True
'858 IBM00858 False False False False True True
'860 IBM860 False False False False True True
'861 ibm861 False False False False True True
'862 DOS-862 True True False False True True
'863 IBM863 False False False False True True
'864 IBM864 False False False False True True
'865 IBM865 False False False False True True
'866 cp866 True True False False True True
'869 ibm869 False False False False True True
'870 IBM870 False False False False True True
'874 windows-874 True True True True True True
'875 cp875 False False False False True True
'932 shift_jis True True True True False True
'936 gb2312 True True True True False True
'949 ks_c_5601-1987 True True True True False True
'950 big5 True True True True False True
'1026 IBM1026 False False False False True True
'1047 IBM01047 False False False False True True
'1140 IBM01140 False False False False True True
'1141 IBM01141 False False False False True True
'1142 IBM01142 False False False False True True
'1143 IBM01143 False False False False True True
'1144 IBM01144 False False False False True True
'1145 IBM01145 False False False False True True
'1146 IBM01146 False False False False True True
'1147 IBM01147 False False False False True True
'1148 IBM01148 False False False False True True
'1149 IBM01149 False False False False True True
'1200 utf-16 False True False False False True
'1201 unicodeFFFE False False False False False True
'1250 windows-1250 True True True True True True
'1251 windows-1251 True True True True True True
'1252 Windows-1252 True True True True True True
'1253 windows-1253 True True True True True True
'1254 windows-1254 True True True True True True
'1255 windows-1255 True True True True True True
'1256 windows-1256 True True True True True True
'1257 windows-1257 True True True True True True
'1258 windows-1258 True True True True True True
'1361 Johab False False False False False True
'10000 macintosh False False False False True True
'10001 x-mac-japanese False False False False False True
'10002 x-mac-chinesetrad False False False False False True
'10003 x-mac-korean False False False False False True
'10004 x-mac-arabic False False False False True True
'10005 x-mac-hebrew False False False False True True
'10006 x-mac-greek False False False False True True
'10007 x-mac-cyrillic False False False False True True
'10008 x-mac-chinesesimp False False False False False True
'10010 x-mac-romanian False False False False True True
'10017 x-mac-ukrainian False False False False True True
'10021 x-mac-thai False False False False True True
'10029 x-mac-ce False False False False True True
'10079 x-mac-icelandic False False False False True True
'10081 x-mac-turkish False False False False True True
'10082 x-mac-croatian False False False False True True
'12000 utf-32 False False False False False True
'12001 utf-32BE False False False False False True
'20000 x-Chinese-CNS False False False False False True
'20001 x-cp20001 False False False False False True
'20002 x-Chinese-Eten False False False False False True
'20003 x-cp20003 False False False False False True
'20004 x-cp20004 False False False False False True
'20005 x-cp20005 False False False False False True
'20105 x-IA5 False False False False True True
'20106 x-IA5-German False False False False True True
'20107 x-IA5-Swedish False False False False True True
'20108 x-IA5-Norwegian False False False False True True
'20127 us-ascii False False True True True True
'20261 x-cp20261 False False False False False True
'20269 x-cp20269 False False False False True True
'20273 IBM273 False False False False True True
'20277 IBM277 False False False False True True
'20278 IBM278 False False False False True True
'20280 IBM280 False False False False True True
'20284 IBM284 False False False False True True
'20285 IBM285 False False False False True True
'20290 IBM290 False False False False True True
'20297 IBM297 False False False False True True
'20420 IBM420 False False False False True True
'20423 IBM423 False False False False True True
'20424 IBM424 False False False False True True
'20833 x-EBCDIC-KoreanExtended False False False False True True
'20838 IBM-Thai False False False False True True
'20866 koi8-r True True True True True True
'20871 IBM871 False False False False True True
'20880 IBM880 False False False False True True
'20905 IBM905 False False False False True True
'20924 IBM00924 False False False False True True
'20932 EUC-JP False False False False False True
'20936 x-cp20936 False False False False False True
'20949 x-cp20949 False False False False False True
'21025 cp1025 False False False False True True
'21866 koi8-u True True True True True True
'28591 iso-8859-1 True True True True True True
'28592 iso-8859-2 True True True True True True
'28593 iso-8859-3 False False True True True True
'28594 iso-8859-4 True True True True True True
'28595 iso-8859-5 True True True True True True
'28596 iso-8859-6 True True True True True True
'28597 iso-8859-7 True True True True True True
'28598 iso-8859-8 True True False False True True
'28599 iso-8859-9 True True True True True True
'28603 iso-8859-13 False False True True True True
'28605 iso-8859-15 False True True True True True
'29001 x-Europa False False False False True True
'38598 iso-8859-8-i True True True True True True
'50220 iso-2022-jp False False True True False True
'50221 csISO2022JP False True True True False True
'50222 iso-2022-jp False False False False False True
'50225 iso-2022-kr False False True False False True
'50227 x-cp50227 False False False False False True
'51932 euc-jp True True True True False True
'51936 EUC-CN False False False False False True
'51949 euc-kr False False True True False True
'52936 hz-gb-2312 True True True True False True
'54936 GB18030 True True True True False True
'57002 x-iscii-de False False False False False True
'57003 x-iscii-be False False False False False True
'57004 x-iscii-ta False False False False False True
'57005 x-iscii-te False False False False False True
'57006 x-iscii-as False False False False False True
'57007 x-iscii-or False False False False False True
'57008 x-iscii-ka False False False False False True
'57009 x-iscii-ma False False False False False True
'57010 x-iscii-gu False False False False False True
'57011 x-iscii-pa False False False False False True
'65001 utf-8 True True True True False True
'
Remarks
For a single-byte encoding, for example, ASCIIEncoding, this property retrieves true.
Caution
You should be careful in what your application does with the value for IsSingleByte. An assumption of how an Encoding will proceed may still be wrong. For example, Windows-1252 has a value of true for Encoding.IsSingleByte, but Encoding.GetMaxByteCount(1) returns 2. This is because the method considers potential leftover surrogates from a previous decoder operation.
Applies to
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