BitConverter.ToBoolean Method

Definition

Overloads

ToBoolean(ReadOnlySpan<Byte>)

Converts a read-only byte span to a Boolean value.

ToBoolean(Byte[], Int32)

Returns a Boolean value converted from the byte at a specified position in a byte array.

ToBoolean(ReadOnlySpan<Byte>)

Converts a read-only byte span to a Boolean value.

public:
 static bool ToBoolean(ReadOnlySpan<System::Byte> value);
public static bool ToBoolean (ReadOnlySpan<byte> value);
static member ToBoolean : ReadOnlySpan<byte> -> bool
Public Shared Function ToBoolean (value As ReadOnlySpan(Of Byte)) As Boolean

Parameters

value
ReadOnlySpan<Byte>

A read-only span containing the bytes to convert.

Returns

A Boolean representing the converted bytes.

Exceptions

The length of value is less than 1.

Applies to

ToBoolean(Byte[], Int32)

Returns a Boolean value converted from the byte at a specified position in a byte array.

public:
 static bool ToBoolean(cli::array <System::Byte> ^ value, int startIndex);
public static bool ToBoolean (byte[] value, int startIndex);
static member ToBoolean : byte[] * int -> bool
Public Shared Function ToBoolean (value As Byte(), startIndex As Integer) As Boolean

Parameters

value
Byte[]

A byte array.

startIndex
Int32

The index of the byte within value to convert.

Returns

true if the byte at startIndex in value is nonzero; otherwise, false.

Exceptions

value is null.

startIndex is less than zero or greater than the length of value minus 1.

Examples

The following code example converts elements of Byte arrays to Boolean values with the ToBoolean method.

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

int main()
{
        // Define an array of byte values. 
        array<Byte>^ bytes = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 };

        Console::WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" );
        // Convert each array element to a Boolean value.
        for (int index = 0; index < bytes->Length; index++)
           Console::WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes[index], 
                             BitConverter::ToBoolean(bytes, index));
}
// The example displays the following output:
//     index   array element      bool
//     
//         0              00     False
//         1              01      True
//         2              02      True
//         3              04      True
//         4              08      True
//         5              10      True
//         6              20      True
//         7              40      True
//         8              80      True
//         9              FF      True
using System;

class Example
{
    public static void Main( )
    {
        // Define an array of byte values.
        byte[] bytes = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 };

        Console.WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" );
        // Convert each array element to a Boolean value.
        for (int index = 0; index < bytes.Length; index++)
           Console.WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes[index],
                             BitConverter.ToBoolean(bytes, index));
    }
}
// The example displays the following output:
//     index   array element      bool
//
//         0              00     False
//         1              01      True
//         2              02      True
//         3              04      True
//         4              08      True
//         5              10      True
//         6              20      True
//         7              40      True
//         8              80      True
//         9              FF      True
open System

// Define an array of byte values.
let bytes = [| 0uy; 1uy; 2uy; 4uy; 8uy; 16uy; 32uy; 64uy; 128uy; 255uy |]

printfn "%5s%16s%10s\n" "index" "array element" "bool"

// Convert each array element to a Boolean value.
for i = 0 to bytes.Length - 1 do
    printfn $"{i,5}{bytes[i],16:X2}{BitConverter.ToBoolean(bytes, i), 10}"


// The example displays the following output:
//     index   array element      bool
//
//         0              00     False
//         1              01      True
//         2              02      True
//         3              04      True
//         4              08      True
//         5              10      True
//         6              20      True
//         7              40      True
//         8              80      True
//         9              FF      True
Module Example
    Public Sub Main()
        ' Define an array of byte values. 
        Dim bytes() As Byte = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 }

        Console.WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" )
        ' Convert each array element to a Boolean value.
        For index As Integer = 0 To bytes.Length - 1
           Console.WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes(index), 
                             BitConverter.ToBoolean(bytes, index))
        Next                     
    End Sub 
End Module
' The example displays the following output:
'     index   array element      bool
'     
'         0              00     False
'         1              01      True
'         2              02      True
'         3              04      True
'         4              08      True
'         5              10      True
'         6              20      True
'         7              40      True
'         8              80      True
'         9              FF      True

Remarks

To convert a Boolean value to its byte representation, call the GetBytes(Boolean) method.

See also

Applies to