Rock.Model.AttendanceCodeService.GenerateRandomAlphaCode C# (CSharp) Method

        private static string GenerateRandomAlphaCode( int length )
        {
            StringBuilder sb = new StringBuilder();

            int poolSize = alphaCharacters.Length;
            for ( int i = 0; i < length; i++ )
            {
                sb.Append( alphaCharacters[_random.Next( poolSize )] );
            }

            return sb.ToString();
        }