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

Considering four bits can be expressed by one hex value, you can simply go by groups of four and convert them seperately, the value won't change that way.

string bin = "11110110";

int rest = bin.Length % 4;
bin = bin.PadLeft(rest, '0'); //pad the length out to by divideable by 4

string output = "";

for(int i = 0; i <= bin.Length - 4; i +=4)
{
    output += string.Format("{0:X}", Convert.ToByte(bin.Substring(i, 4), 2));
}