Convert.ToString() to binary format not working as expected

Question

int i = 20;
string output = Convert.ToString(i, 2); // Base2 formatting
i = -20;
output = Convert.ToString(i, 2);

Value   Expected                       


        

Answer 1

This function does exactly what you want

string ConvertToFuzzyFrogBinary(int input)
{
    int prefix = (input).ToString("d8").Length-(Math.Abs((input))).ToString("d8").Length;
    string binary_num = "00000000000000000000000000000000".Substring(0,32-Convert.ToString(Math.Abs(input),2).Length)+Convert.ToString(Math.Abs(input),2);
    return "1".Substring(0,prefix)+binary_num.Substring(prefix,32-prefix);
}