예제 #1
0
        /// <summary>
        ///    Ensures that the value of a parameter is null, or infinite, or greater than or equal to zero.
        /// </summary>
        /// <param name="value">The value of the parameter.</param>
        /// <param name="paramName">The name of the parameter.</param>
        /// <returns>The value of the parameter.</returns>
        public static TimeSpan?IsNullOrInfiniteOrGreaterThanOrEqualToZero(
            TimeSpan?value,
            string paramName)
        {
            if (!value.HasValue || value.Value >= TimeSpan.Zero || value.Value == Timeout.InfiniteTimeSpan)
            {
                return(value);
            }
            var message = $"Value is not null or infinite or greater than or equal to zero: {TimeSpanParser.ToString(value.Value)}.";

            throw new ArgumentOutOfRangeException(paramName, message);
        }