Converting long string of binary to hex c#

Question

I\'m looking for a way to convert a long string of binary to a hex string.

the binary string looks something like this \"01100110100101110010011101010111001101

Answer 1

If you want to iterate over the hexadecimal representation of each byte in the string, you could use the following extension. I've combined Mitch's answer with this.

static class StringExtensions
{
    public static IEnumerable ToHex(this String s) {
        if (s == null)
            throw new ArgumentNullException("s");

        int mod4Len = s.Length % 8;
        if (mod4Len != 0)
        {
            // pad to length multiple of 8
            s = s.PadLeft(((s.Length / 8) + 1) * 8, '0');
        }

        int numBitsInByte = 8;
        for (var i = 0; i < s.Length; i += numBitsInByte)
        {
            string eightBits = s.Substring(i, numBitsInByte);
            yield return string.Format("{0:X2}", Convert.ToByte(eightBits, 2));
        }
    }
}

Example:

string test = "0110011010010111001001110101011100110100001101101000011001010110001101101011";

foreach (var hexVal in test.ToHex())
{
    Console.WriteLine(hexVal);  
}

Prints

06
69
72
75
73
43
68
65
63
6B