Parse string to Byte as System.Globalization.NumberStyles.HexNumber
Imports System Module Example Sub Main() Dim string2 As String = "F9" Try Dim byte2 As Byte = Byte.Parse(string2, System.Globalization.NumberStyles.HexNumber) Console.WriteLine(byte2) Catch e As OverflowException Console.WriteLine("'{0}' is out of range of a byte.", string2) Catch e As FormatException Console.WriteLine("'{0}' is out of range of a byte.", string2) End Try End Sub End Module