c# - Binary of a number

Question

Is there a simply way to convert decimal/ascii 6 bit decimal numbers from 1 to 100 to binary representation? To be more specific im interested in 6 bit binary ascii. So I made this to get int 32. For example "u" is changed to 61 instead 117 in standard decimal ascii. Then this 61 is needed to be "111101" instead of traditional "01110101" but after this 48 + 8 math it's not important as now it's normal binary, just with 6 bits used.

foreach (char c in partToDecode)
                        {
                            var sum = c - 48;
                            if (sum>40)
                            {
                                sum = sum - 8;
                            }

Found this, but i don't have a clue how to traspose it to c#

void binary(unsigned n) {
   unsigned i;
   // Reverse loop
   for (i = 1 << 31; i > 0; i >>= 1)
       printf("%u", !!(n & i));
}

. . .

binary(65);

Answer 1

You can try Convert.ToString, e.g.

  int source = 61;

  // "111101"
  string result = Convert.ToString(source, 2).PadLeft(6, '0');

Fiddle