CODEWITHSUNDEEP
c#.net-6.0
Randy Hall
Randy Hall

Reputation: 8137

C# - Convert string of zeros and ones to a byte array or similar

I am getting a string of zeros and ones from a client API request. They are of a set length (28, in this case) and I want to convert them to a byte[] or something similar, with the goal of storing these in SQL via EF Core and later using bitwise operators to compare them.

I can't seem to wrap my head around this one. I'm seeing a lot of posts/questions about converting characters to byte arrays, or byte arrays to strings, neither of which is what I need.

I need a "00111000010101010" to become a literal binary 00111000010101010 I can use a ^ on.

Leading zeros would be fine if necessary, I think the length might be forced to be a multiple of 8?

Upvotes: 0

Views: 776

Answers (1)

Enigmativity
Enigmativity

Reputation: 117084

You can binary string convert to an integer easily with this:

string source = "00111000010101010";
int number = Convert.ToInt32(source, 2); // The `2` is "base 2"

That gives: 28842.

Then you can go one step further an convert to a byte array, if needed.

byte[] bytes = BitConverter.GetBytes(number);

Upvotes: 1

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