BusinessCats.RollTheDice.Roll C# (CSharp) Method

        public static byte Roll(byte numberSides)
        {
            if (numberSides <= 0)
                throw new ArgumentOutOfRangeException("numberSides");

            // Create a byte array to hold the random value.
            byte[] randomNumber = new byte[1];
            do
            {
                // Fill the array with a random value.
                rngCsp.GetBytes(randomNumber);
            }
            while (!IsFairRoll(randomNumber[0], numberSides));
            // Return the random number mod the number
            // of sides.  The possible values are zero-
            // based, so we add one.
            return (byte)((randomNumber[0] % numberSides) + 1);
        }