Convert a string into BASE62

Question

I\'m looking for the c# code to convert a string into BASE62, like this:

http://www.molengo.com/base62/title/base62-encoder-decoder

I need those encode and decod

Answer 1

You can do this for any base, this way:

static string ToBase62(ulong number)
{
var alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
var n = number;
ulong basis = 62;
var ret = "";
while (n > 0)
 {
   ulong temp = n % basis;
   ret = alphabet[(int)temp] + ret;
   n = (n / basis);

 }
 return ret;
}