Encoder.GetByteCount Method (array<Char[], Int32, Int32, Boolean)

Parameters

• chars
  Type: array<System.Char[]
  The character array containing the set of characters to encode.

• index
  Type: System.Int32
  The zero-based index of the first character to encode.

• count
  Type: System.Int32
  The number of characters to encode.

• flush
  Type: System.Boolean
  true to simulate clearing the internal state of the encoder after the calculation; otherwise, false.

Return Value

Type: System.Int32
The number of bytes produced by encoding the specified characters and any characters in the internal buffer.

Imports System.Text
Imports Microsoft.VisualBasic.Strings

Class Example

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      ' Unicode characters.
      ' ChrW(35)  = #
      ' ChrW(37)  = %
      ' ChrW(928) = Pi
      ' ChrW(931) = Sigma
      Dim chars() As Char = {ChrW(35), ChrW(37), ChrW(928), ChrW(931)}

      Dim uniEncoder As Encoder = Encoding.Unicode.GetEncoder()
      Dim byteCount As Integer = _
          uniEncoder.GetByteCount(chars, 0, chars.Length, True)
      outputBlock.Text += String.Format("{0} bytes needed to encode characters.", byteCount) & vbCrLf
   End Sub 'Main
End Class 'EncoderExample

using System;
using System.Text;

class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      // Unicode characters.
      Char[] chars = new Char[] {
            '\u0023', // #
            '\u0025', // %
            '\u03a0', // Pi
            '\u03a3'  // Sigma
        };

      Encoder uniEncoder = Encoding.Unicode.GetEncoder();
      int byteCount = uniEncoder.GetByteCount(chars, 0, chars.Length, true);
      outputBlock.Text += String.Format(
          "{0} bytes needed to encode characters.", byteCount
      ) + "\n";
   }
}