Question

How to convert byte array to a hex string in VB.NET

Answer 1

Imports System

Public Class Program
    Public Shared Sub Main()
        Dim bytes As Byte() = {0, 1, 2, 3, 4, 5, 10, 20, 254, 255}
        
        Dim hexString As String = BitConverter.ToString(bytes).Replace("-", " ")
        
        Console.WriteLine(hexString)
    End Sub
End Class




' run:
'
' 00 01 02 03 04 05 0A 14 FE FF
'

 

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Answer 2

Imports System
Imports System.Text

Public Class Program
    Public Shared Function ByteArrayToString(ByVal ba As Byte()) As String
        Dim hex As StringBuilder = New StringBuilder(ba.Length * 2)

        For Each b As Byte In ba
            hex.AppendFormat("{0:X2} ", b)
        Next

        Return hex.ToString()
    End Function

    Public Shared Sub Main()
        Dim bytes As Byte() = {0, 1, 2, 3, 4, 5, 10, 20, 254, 255}
        
        Dim hexString As String = ByteArrayToString(bytes)
        
        Console.WriteLine(hexString)
    End Sub
End Class




' run:
'
' 00 01 02 03 04 05 0A 14 FE FF 
'

 

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