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DynamicQueryEngineCreateRowCountDQ Method

Not supported on Firebird, because Firebird doesn't support SELECT COUNT(*) AS NumberOfRows FROM (SELECT ... FROM table WHERE... ).

Throws NotSupportedException. Use GetScalar instead with a CountRow aggregate.

Namespace:  SD.LLBLGen.Pro.DQE.Firebird
Assembly:  SD.LLBLGen.Pro.DQE.Firebird (in SD.LLBLGen.Pro.DQE.Firebird.dll) Version: 5.4.0.0 (5.4.0)
Syntax
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public override IRetrievalQuery CreateRowCountDQ(
	IEntityFieldCore[] selectList,
	IFieldPersistenceInfo[] fieldsPersistenceInfo,
	DbConnection connectionToUse,
	IPredicate selectFilter,
	IRelationCollection relationsToWalk,
	bool allowDuplicates,
	IGroupByCollection groupByClause
)

Parameters

selectList
Type: SD.LLBLGen.Pro.ORMSupportClassesIEntityFieldCore
list of IEntityFieldCore objects to select
fieldsPersistenceInfo
Type: SD.LLBLGen.Pro.ORMSupportClassesIFieldPersistenceInfo
Array of IFieldPersistenceInfo objects to use to build the select query
connectionToUse
Type: System.Data.CommonDbConnection
The connection to use for the query
selectFilter
Type: SD.LLBLGen.Pro.ORMSupportClassesIPredicate
A complete IPredicate implementing object which contains the filter for the rows to select. When set to null, no filtering is done, and all rows are returned.
relationsToWalk
Type: SD.LLBLGen.Pro.ORMSupportClassesIRelationCollection
list of EntityRelation objects, which will be used to formulate a FROM clause with INNER JOINs.
allowDuplicates
Type: SystemBoolean
Flag which forces the inclusion of DISTINCT if set to true. If the resultset contains fields of type ntext, text or image, no duplicate filtering is done.
groupByClause
Type: SD.LLBLGen.Pro.ORMSupportClassesIGroupByCollection
The list of fields to group by on. When not specified or an empty collection is specified, no group by clause is added to the query. A check is performed for each field in the selectList. If a field in the selectList is not present in the groupByClause collection, an exception is thrown.

Return Value

Type: IRetrievalQuery
IRetrievalQuery instance which is ready to be used.
Exceptions
ExceptionCondition
ArgumentNullExceptionWhen selectList is null or fieldsPersistenceInfo is null
ArgumentExceptionWhen selectList contains no EntityFieldCore instances or fieldsPersistenceInfo is empty.
See Also