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How to use EvaluateNull method of NBi.Core.Transformation.Transformer.Native.DateTimeToNextMonth class

Best NBi code snippet using NBi.Core.Transformation.Transformer.Native.DateTimeToNextMonth.EvaluateNull

DateTimeTransformations.cs

Source:DateTimeTransformations.cs

...13        public object Evaluate(object value)14        {15            switch (value)16            {17                case null: return EvaluateNull();18                case DBNull _: return EvaluateNull();19                case DateTime dt: return EvaluateDateTime(dt);20                default: return EvaluateUncasted(value);21            }22        }23        private object EvaluateUncasted(object value)24        {25            if (value as string == "(null)" || (value is string && string.IsNullOrEmpty(value as string)))26                return EvaluateNull();27            var caster = new DateTimeCaster();28            var dateTime = caster.Execute(value);29            return EvaluateDateTime(dateTime);30        }31        protected virtual object EvaluateNull() => null;32        protected abstract object EvaluateDateTime(DateTime value);33    }34    class DateTimeToDate : AbstractDateTimeTransformation35    {36        protected override object EvaluateDateTime(DateTime value) => value.Date;37    }38    class DateToAge : AbstractDateTimeTransformation39    {40        protected override object EvaluateNull() => 0;41        protected override object EvaluateDateTime(DateTime value)42        {43            // Save today's date.44            var today = DateTime.Today;45            // Calculate the age.46            var age = today.Year - value.Year;47            // Go back to the year the person was born in case of a leap year48            return value.AddYears(age) > today ? age-- : age;49        }50    }51    class DateTimeToFirstOfMonth : AbstractDateTimeTransformation52    {53        protected override object EvaluateDateTime(DateTime value) => new DateTime(value.Year, value.Month, 1);54    }55    class DateTimeToFirstOfYear : AbstractDateTimeTransformation56    {57        protected override object EvaluateDateTime(DateTime value) => new DateTime(value.Year, 1, 1);58    }59    class DateTimeToLastOfMonth : AbstractDateTimeTransformation60    {61        protected override object EvaluateDateTime(DateTime value) => new DateTime(value.Year, value.Month, 1).AddMonths(1).AddDays(-1);62    }63    class DateTimeToLastOfYear : AbstractDateTimeTransformation64    {65        protected override object EvaluateDateTime(DateTime value) => new DateTime(value.Year, 12, 31);66    }67    class DateTimeToNextDay : AbstractDateTimeTransformation68    {69        protected override object EvaluateDateTime(DateTime value) => value.AddDays(1);70    }71    class DateTimeToNextMonth : AbstractDateTimeTransformation72    {73        protected override object EvaluateDateTime(DateTime value) => value.AddMonths(1);74    }75    class DateTimeToNextYear : AbstractDateTimeTransformation76    {77        protected override object EvaluateDateTime(DateTime value) => value.AddYears(1);78    }79    class DateTimeToPreviousDay : AbstractDateTimeTransformation80    {81        protected override object EvaluateDateTime(DateTime value) => value.AddDays(-1);82    }83    class DateTimeToPreviousMonth : AbstractDateTimeTransformation84    {85        protected override object EvaluateDateTime(DateTime value) => value.AddMonths(-1);86    }87    class DateTimeToPreviousYear : AbstractDateTimeTransformation88    {89        protected override object EvaluateDateTime(DateTime value) => value.AddYears(-1);90    }91    class DateTimeToClip : AbstractDateTimeTransformation92    {93        public IScalarResolver<DateTime> Min { get; }94        public IScalarResolver<DateTime> Max { get; }95        public DateTimeToClip(IScalarResolver<DateTime> min, IScalarResolver<DateTime> max)96            => (Min, Max) = (min, max);97        protected override object EvaluateDateTime(DateTime value)98            => (value < Min.Execute()) ? Min.Execute() : (value > Max.Execute()) ? Max.Execute() : value;99    }100    class DateTimeToSetTime : AbstractDateTimeTransformation101    {102        public IScalarResolver<string> Instant { get; }103        public DateTimeToSetTime(IScalarResolver<string> instant)104            => Instant = instant;105        protected override object EvaluateDateTime(DateTime value)106        {107            var time = TimeSpan.Parse(Instant.Execute());108            return new DateTime(value.Year, value.Month, value.Day, time.Hours, time.Minutes, time.Seconds);109        }110    }111    class NullToDate : AbstractDateTimeTransformation112    {113        public IScalarResolver<DateTime> Default { get; }114        public NullToDate(IScalarResolver<DateTime> dt)115            => Default = dt;116        protected override object EvaluateNull() => Default.Execute();117        protected override object EvaluateDateTime(DateTime value) => value;118    }119    class DateTimeToFloorHour : AbstractDateTimeTransformation120    {121        protected override object EvaluateDateTime(DateTime value)122            => value.AddTicks(-1 * (value.Ticks % TimeSpan.TicksPerHour));123    }124    class DateTimeToCeilingHour : AbstractDateTimeTransformation125    {126        protected override object EvaluateDateTime(DateTime value)127            => value.AddTicks(TimeSpan.TicksPerHour - (value.Ticks % TimeSpan.TicksPerHour == 0 ? TimeSpan.TicksPerHour : value.Ticks % TimeSpan.TicksPerHour));128    }129    class DateTimeToFloorMinute : AbstractDateTimeTransformation130    {...

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