Encoding::UTF32 Property

Gets an encoding for the UTF-32 format using the little endian byte order.

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

public:
static property Encoding^ UTF32 {
	Encoding^ get ();
}

Property Value

Type: System.Text::Encoding
An encoding object for the UTF-32 format using the little endian byte order.

The UTF32Encoding object that is returned by this property may not have the appropriate behavior for your application. It uses replacement fallback to replace each string that it cannot encode and each byte that it cannot decode with the Unicode REPLACEMENT CHARACTER (U+FFFE). Instead, you can call the UTF32Encoding::UTF32Encoding(Boolean, Boolean, Boolean) constructor to instantiate a UTF32Encoding object whose fallback is either an EncoderFallbackException or a DecoderFallbackException, as the following example illustrates.

No code example is currently available or this language may not be supported.

For a discussion of little endian byte order, see the Encoding class topic.

For information about the encodings supported by the .NET Framework and a discussion of which Unicode encoding to use, see Character Encoding in the .NET Framework.

The following example determines the number of bytes required to encode a character array, encodes the characters, and displays the resulting bytes.

using namespace System;
using namespace System::Text;
void PrintCountsAndBytes( array<Char>^chars, Encoding^ enc );
void PrintHexBytes( array<Byte>^bytes );
int main()
{

   // The characters to encode: 
   //    Latin Small Letter Z (U+007A) 
   //    Latin Small Letter A (U+0061) 
   //    Combining Breve (U+0306) 
   //    Latin Small Letter AE With Acute (U+01FD) 
   //    Greek Small Letter Beta (U+03B2) 
   //    a high-surrogate value (U+D8FF) 
   //    a low-surrogate value (U+DCFF) 
   array<Char>^myChars = gcnew array<Char>{
      L'z','a',L'\u0306',L'\u01FD',L'\u03B2',L'\xD8FF',L'\xDCFF'
   };

   // Get different encodings.
   Encoding^ u7 = Encoding::UTF7;
   Encoding^ u8 = Encoding::UTF8;
   Encoding^ u16LE = Encoding::Unicode;
   Encoding^ u16BE = Encoding::BigEndianUnicode;
   Encoding^ u32 = Encoding::UTF32;

   // Encode the entire array, and print out the counts and the resulting bytes.
   PrintCountsAndBytes( myChars, u7 );
   PrintCountsAndBytes( myChars, u8 );
   PrintCountsAndBytes( myChars, u16LE );
   PrintCountsAndBytes( myChars, u16BE );
   PrintCountsAndBytes( myChars, u32 );
}

void PrintCountsAndBytes( array<Char>^chars, Encoding^ enc )
{

   // Display the name of the encoding used.
   Console::Write( "{0,-30} :", enc );

   // Display the exact byte count. 
   int iBC = enc->GetByteCount( chars );
   Console::Write( " {0,-3}", iBC );

   // Display the maximum byte count. 
   int iMBC = enc->GetMaxByteCount( chars->Length );
   Console::Write( " {0,-3} :", iMBC );

   // Encode the array of chars. 
   array<Byte>^bytes = enc->GetBytes( chars );

   // Display all the encoded bytes.
   PrintHexBytes( bytes );
}

void PrintHexBytes( array<Byte>^bytes )
{
   if ( (bytes == nullptr) || (bytes->Length == 0) )
      Console::WriteLine( "<none>" );
   else
   {
      for ( int i = 0; i < bytes->Length; i++ )
         Console::Write( "{0:X2} ", bytes[ i ] );
      Console::WriteLine();
   }
}

/* 
This code produces the following output.

System.Text.UTF7Encoding       : 18  23  :7A 61 2B 41 77 59 42 2F 51 4F 79 32 50 2F 63 2F 77 2D
System.Text.UTF8Encoding       : 12  24  :7A 61 CC 86 C7 BD CE B2 F1 8F B3 BF
System.Text.UnicodeEncoding    : 14  16  :7A 00 61 00 06 03 FD 01 B2 03 FF D8 FF DC
System.Text.UnicodeEncoding    : 14  16  :00 7A 00 61 03 06 01 FD 03 B2 D8 FF DC FF
System.Text.UTF32Encoding      : 24  32  :7A 00 00 00 61 00 00 00 06 03 00 00 FD 01 00 00 B2 03 00 00 FF FC 04 00

*/

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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