/ doc / DocFrag / ARCQuery.FunctionKeyAggregate / Attribute / Description

Description

Edit keys at this level only

= Operates over a collection of properties.0x000D0x000A0x000D0x000ASpecially understood by -ForeignKey-.0x000D0x000A0x000D0x000A-TryGetP- is implicit understood to receive an instance of -IP- containing an IEnumerable0x003CIP0x003E-collection as value.0x000D0x000A0x000D0x000AImplementing classes in -StandardAgoRapideCode-, more specific -ARCQuery-, are:0x000D0x000A-FunctionKeyAggregateCount-0x000D0x000A-FunctionKeyAggregateSum-0x000D0x000A-FunctionKeyAggregateMin-0x000D0x000A-FunctionKeyAggregateMax-0x000D0x000A-FunctionKeyAggregateAvg-0x000D0x000A-FunctionKeyAggregateJoin-0x000D0x000A0x000D0x000AImplementing classes that returns PValue0x003CList0x003CIP0x003E0x003E are:0x000D0x000A-FunctionKeyAggregateDistinct-0x000D0x000AThese usually give meaning only if followed by an 'ordinary' implementation that returns a PValue containing a single value.0x000D0x000AThis is specially understood by -TryGetPInternal-.0x000D0x000AStored in -ForeignKey- as -AggregateKeys-.0x000D0x000A0x000D0x000ASee also:0x000D0x000A-QueryExpressionAggregate- which aggregates over a key0x000D0x000Aand0x000D0x000A-QueryExpressionPivot- which creates a table by querying over two keys.0x000D0x000A

Edit keys at all sub levels.
NOTE: Edits are always additive. Use 'Invalid' in order to delete keys.

Generated 2025-11-04 17:20:30.993 UTC