BusinessLogic.Models.Utility.BasicDateRangeFilter.IsValid C# (CSharp) Метод

        public virtual bool IsValid(out string errorMessage)
        {
            errorMessage = null;
            DateTime twoDaysInTheFuture = DateTime.UtcNow.Date.AddDays(1).AddMilliseconds(-1);
            if (ToDate > twoDaysInTheFuture)
            {
                errorMessage = "The 'Ending Date' cannot be in the future.";
                return false;
            }

            if (FromDate > twoDaysInTheFuture)
            {
                errorMessage = "The 'From Date' cannot be in the future.";
                return false;
            }

            if (ToDate < FromDate)
            {
                errorMessage = "The 'From Date' cannot be greater than the 'To Date'.";
                return false;
            }

            return true;
        }
    }