BitConverter.ToBoolean Method

Parameters

• value
  Type: array<System.Byte[]
  An array of bytes.

• startIndex
  Type: System.Int32
  The starting position within value.

Return Value

Type: System.Boolean
true if the byte at startIndex in value is nonzero; otherwise, false.

' Example of the BitConverter.ToBoolean method.

Module Example

   Const formatter As String = "{0,5}{1,16}{2,10}"

   ' Convert a Byte array element to Boolean and display it.
   Sub BAToBool(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal bytes() As Byte, ByVal index As Integer)

      Dim value As Boolean = BitConverter.ToBoolean(bytes, index)

      outputBlock.Text &= String.Format(formatter, index, _
          BitConverter.ToString(bytes, index, 1), value) & vbCrLf
   End Sub

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Dim byteArray As Byte() = _
          {0, 1, 2, 4, 8, 16, 32, 64, 128, 255}

      outputBlock.Text &= String.Format( _
          "This example of the BitConverter.ToBoolean( Byte( ), " & _
          "Integer ) " & vbCrLf & "method generates the " & _
          "following output. It converts elements of " & vbCrLf & _
          "a Byte array to Boolean values." & vbCrLf) & vbCrLf
      outputBlock.Text &= "initial Byte array" & vbCrLf
      outputBlock.Text &= "------------------" & vbCrLf
      outputBlock.Text &= BitConverter.ToString(byteArray) & vbCrLf
      outputBlock.Text &= vbCrLf
      outputBlock.Text &= String.Format(formatter, "index", "array element", "Boolean") & vbCrLf
      outputBlock.Text &= String.Format(formatter, "-----", "-------------", "-------") & vbCrLf

      ' Convert Byte array elements to Boolean values.
      BAToBool(outputBlock, byteArray, 0)
      BAToBool(outputBlock, byteArray, 1)
      BAToBool(outputBlock, byteArray, 3)
      BAToBool(outputBlock, byteArray, 5)
      BAToBool(outputBlock, byteArray, 8)
      BAToBool(outputBlock, byteArray, 9)
   End Sub
End Module

' This example of the BitConverter.ToBoolean( Byte( ), Integer )
' method generates the following output. It converts elements of
' a Byte array to Boolean values.
' 
' initial Byte array
' ------------------
' 00-01-02-04-08-10-20-40-80-FF
' 
' index   array element   Boolean
' -----   -------------   -------
'     0              00     False
'     1              01      True
'     3              04      True
'     5              10      True
'     8              80      True
'     9              FF      True

// Example of the BitConverter.ToBoolean method.
using System;

class Example
{
   const string formatter = "{0,5}{1,16}{2,10}";

   // Convert a byte array element to bool and display it.
   public static void BAToBool(System.Windows.Controls.TextBlock outputBlock, byte[] bytes, int index)
   {
      bool value = BitConverter.ToBoolean(bytes, index);

      outputBlock.Text += String.Format(formatter, index,
          BitConverter.ToString(bytes, index, 1), value) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      byte[] byteArray = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 };

      outputBlock.Text += String.Format(
          "This example of the BitConverter.ToBoolean( byte[ ], " +
          "int ) \nmethod generates the following output. It " +
          "converts elements \nof a byte array to bool values.\n") + "\n";
      outputBlock.Text += "initial byte array" + "\n";
      outputBlock.Text += "------------------" + "\n";
      outputBlock.Text += BitConverter.ToString(byteArray) + '\n' + "\n";
      outputBlock.Text += String.Format(formatter, "index", "array element", "bool") + "\n";
      outputBlock.Text += String.Format(formatter, "-----", "-------------", "----") + "\n";

      // Convert byte array elements to bool values.
      BAToBool(outputBlock, byteArray, 0);
      BAToBool(outputBlock, byteArray, 1);
      BAToBool(outputBlock, byteArray, 3);
      BAToBool(outputBlock, byteArray, 5);
      BAToBool(outputBlock, byteArray, 8);
      BAToBool(outputBlock, byteArray, 9);
   }
}

/*
This example of the BitConverter.ToBoolean( byte[ ], int )
method generates the following output. It converts elements
of a byte array to bool values.

initial byte array
------------------
00-01-02-04-08-10-20-40-80-FF

index   array element      bool
-----   -------------      ----
    0              00     False
    1              01      True
    3              04      True
    5              10      True
    8              80      True
    9              FF      True
*/