Export (0) Print
Expand All

Encoding.GetChars Method (Byte[])

When overridden in a derived class, decodes all the bytes in the specified byte array into a set of characters.

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

public virtual char[] GetChars (
	byte[] bytes
)
public char[] GetChars (
	byte[] bytes
)
public function GetChars (
	bytes : byte[]
) : char[]

Parameters

bytes

The byte array containing the sequence of bytes to decode.

Return Value

A character array containing the results of decoding the specified sequence of bytes.

Exception typeCondition

ArgumentNullException

bytes is a null reference (Nothing in Visual Basic).

If the data to be converted is available only in sequential blocks (such as data read from a stream) or if the amount of data is so large that it needs to be divided into smaller blocks, use the Decoder or the Encoder provided by the GetDecoder method or the GetEncoder method, respectively, of a derived class.

The following code example encodes a string into an array of bytes, and then decodes the bytes into an array of characters.

using System;
using System.Text;

public class SamplesEncoding  {

   public static void Main()  {

      // Create two instances of UTF32Encoding: one with little-endian byte order and one with big-endian byte order.
      Encoding u32LE = Encoding.GetEncoding( "utf-32" );
      Encoding u32BE = Encoding.GetEncoding( "utf-32BE" );

      // Use a string containing the following characters:
      //    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)
      String myStr = "za\u0306\u01FD\u03B2";

      // Encode the string using the big-endian byte order.
      byte[] barrBE = new byte[u32BE.GetByteCount( myStr )];
      u32BE.GetBytes( myStr, 0, myStr.Length, barrBE, 0 );

      // Encode the string using the little-endian byte order.
      byte[] barrLE = new byte[u32LE.GetByteCount( myStr )];
      u32LE.GetBytes( myStr, 0, myStr.Length, barrLE, 0 );

      // Get the char counts, and decode the byte arrays.
      Console.Write( "BE array with BE encoding : " );
      PrintCountsAndChars( barrBE, u32BE );
      Console.Write( "LE array with LE encoding : " );
      PrintCountsAndChars( barrLE, u32LE );

   }


   public static void PrintCountsAndChars( byte[] bytes, Encoding enc )  {

      // Display the name of the encoding used.
      Console.Write( "{0,-25} :", enc.ToString() );

      // Display the exact character count.
      int iCC  = enc.GetCharCount( bytes );
      Console.Write( " {0,-3}", iCC );

      // Display the maximum character count.
      int iMCC = enc.GetMaxCharCount( bytes.Length );
      Console.Write( " {0,-3} :", iMCC );

      // Decode the bytes and display the characters.
      char[] chars = enc.GetChars( bytes );
      Console.WriteLine( chars );

   }

}


/* 
This code produces the following output.  The question marks take the place of characters that cannot be displayed at the console.

BE array with BE encoding : System.Text.UTF32Encoding : 5   12  :za??
LE array with LE encoding : System.Text.UTF32Encoding : 5   12  :za??

*/


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

public class SamplesEncoding
{
    public static void main(String[] args)
    {
        // Create two instances of UTF32Encoding: one with little-endian
        // byte order and one with big-endian byte order.
        Encoding u32LE = Encoding.GetEncoding("utf-32");
        Encoding u32BE = Encoding.GetEncoding("utf-32BE");

        // Use a string containing the following characters:
        //    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)
        String myStr = "za\u0306\u01FD\u03B2";

        // Encode the string using the big-endian byte order.
        ubyte barrBE[] = new ubyte[u32BE.GetByteCount(myStr)];
        u32BE.GetBytes(myStr, 0, myStr.get_Length(), barrBE, 0);

        // Encode the string using the little-endian byte order.
        ubyte barrLE[] = new ubyte[u32LE.GetByteCount(myStr)];
        u32LE.GetBytes(myStr, 0, myStr.get_Length(), barrLE, 0);

        // Get the char counts, and decode the byte arrays.
        Console.Write("BE array with BE encoding : ");
        PrintCountsAndChars(barrBE, u32BE);
        Console.Write("LE array with LE encoding : ");
        PrintCountsAndChars(barrLE, u32LE);
    } //main

    public static void PrintCountsAndChars(ubyte bytes[], Encoding enc)
    {
        // Display the name of the encoding used.
        Console.Write("{0,-25} :", enc.ToString());

        // Display the exact character count.
        int iCC = enc.GetCharCount(bytes);
        Console.Write(" {0,-3}", String.valueOf(iCC));

        // Display the maximum character count.
        int iMCC = enc.GetMaxCharCount(bytes.length);
        Console.Write(" {0,-3} :", String.valueOf(iMCC));

        // Decode the bytes and display the characters.
        char chars[] = enc.GetChars(bytes);
        Console.WriteLine(chars);
    } //PrintCountsAndChars
} //SamplesEncoding 

/* 
This code produces the following output.  The question marks take the place
 of characters that cannot be displayed at the console.

BE array with BE encoding : System.Text.UTF32Encoding : 5   12  :za??
LE array with LE encoding : System.Text.UTF32Encoding : 5   12  :za??

*/


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft