System.Convert.ToUInt64 C# (CSharp) Method

        public static ulong ToUInt64(DateTime value)
        {
            return ((IConvertible)value).ToUInt64(null);
        }

        /// <summary>
        ///     Converts the specified search criterion dto.
        /// </summary>
        /// <param name="searchCriterionDto">The search criterion dto.</param>
        /// <returns>ICriterion.</returns>
        /// <exception cref="ArgumentException">Input has to have at least 3 arguments</exception>
        /// <exception cref="ArgumentOutOfRangeException"></exception>
        /// <exception cref="Exception">change this</exception>
        public ICriterion Convert(SearchCriterionDto searchCriterionDto)
        {
            var terminal = (TerminalSearchCriterionDto)searchCriterionDto;
            var args     = terminal.Args;

            if (args.Length < 3)
            {
                throw new ArgumentException("Input has to have at least 3 arguments");
            }
            var reg = Register.Lookup(args[0]);

            if (reg == null)
            {
                throw new ArgumentOutOfRangeException();
            }
            switch (args[1])
            {
            case "-eq":
                return(new RegisterEqualsCriterion(reg, Conv.ToUInt64(args[2]).ToHexString()));

            case "-between":
                var low = Conv.ToUInt64(args[2]);
                var hi  = Conv.ToUInt64(args[3]);    // todo: check before
                return(new RegisterBetweenCriterion(reg, low.ToHexString(), hi.ToHexString()));

            default:
                throw new Exception("change this");
            }
        }