Question

We can declare a byte variable like this, for hex ’88’

Dim bytes = New Byte() { &H88 }

My case, 88 is assigned to a variable, hexvalue

How to declare the byte with the variable hex value?

Dim bytes = New Byte() { &H & hexvalue }

the above throws syntax error.

Answer 1

&H is just for defining constants by their hex value, so &H88 is actually 136.

You can use this if you want to cast hex input to a byte ( Long and Int also support Parse, so those are viable as well ):

Dim q( ) As Byte = New Byte( ){ Byte.Parse( hexvalue, System.Globalization.NumberStyles.HexNumber ) }

And you don’t even need the leading &h if you do it that way.