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Attribute: [Avg], [Count], [First], [Last], [Max], [Min] and [Sum]

Posted by Gerhard Stephan on March 7th, 2008

This aggregation attributes can be placed on any projection property of a projection class.

    public class TimeEntryAggregation


        private DateTime minDate;


        /// <summary>

        /// Gets or sets the min date.

        /// </summary>

        /// <value>The first date.</value>

        [ProjectOntoProperty(typeof(TimeEntry), "StartDate")]


        public DateTime MinDate


            get { return minDate; }

            set { minDate = value; }



    var minTimeEntry = mapper.Load(typeof(TimeEntryAggregation), null as ICondition) as TimeEntryAggregation;

The following attributes can be used this way:

  • [Avg] 
  • [Count]
  • [First], [Last]
  • [Min], [Max]
  • [Sum]

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