Converting a String or base10 to a base 2 in VB [duplicate]

Question

This question already has answers here:

Quickest way to convert a base 10 number to any base in .NET? (12 answers)

Closed 8 years ago.

I am looking for a way to take a value from a text box and convert it into a base 2 number with 8 digits.
So if they type in a text box 2 it would respond 00000010. or if they typed 255 11111111. etc...
is there any way to do this.

Dim prVal As Integer

prVal = PrefixTxt.Text

Answer 1

Use the Convert.ToString method and specify the base as 2. This will convert an Integer value into a String in the specified base

Dim result = Convert.ToString(Integer.Parse(prVal), 2)

As @Dan pointed out if you want to force this to be width 8 use the PadLeft method

result = result.PadLeft(8, "0"c)

Answer 2

Convert.ToString(Integer.Parse(prVal), 2).PadLeft(8, '0')