Sql binary to c# - How to get SQL binary equivalent of binary in c#

Question

It might seem a dumb question to you guys. I have one SQL table with one binary column. It has some data in binary format.

e.g. 0x9A8B9D9A002020202020202020202020<

Answer 1

public static byte[] ConvertToBinary(string str)
{
    System.Text.ASCIIEncoding  encoding = new System.Text.ASCIIEncoding();
    return encoding.GetBytes(str);
}

or

Convert.ToByte(string);