DataAccessAdapterCoreGetScalar Method (IEntityFields2, IPredicate, IGroupByCollection, IRelationCollection) |
Executes the expression defined with the field in the fields collection specified, using the various elements defined. The expression is executed as a
scalar query and a single value is returned.
Namespace:
SD.LLBLGen.Pro.ORMSupportClasses
Assembly:
SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.6.0.0 (5.6.19.0117)
Syntax public virtual Object GetScalar(
IEntityFields2 fields,
IPredicate filter,
IGroupByCollection groupByClause,
IRelationCollection relations
)
Public Overridable Function GetScalar (
fields As IEntityFields2,
filter As IPredicate,
groupByClause As IGroupByCollection,
relations As IRelationCollection
) As Object
Parameters
- fields
- Type: SD.LLBLGen.Pro.ORMSupportClassesIEntityFields2
IEntityFields2 instance with a single field with an expression defined and eventually aggregates - filter
- Type: SD.LLBLGen.Pro.ORMSupportClassesIPredicate
filter to use - 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. - relations
- Type: SD.LLBLGen.Pro.ORMSupportClassesIRelationCollection
The relations part of the filter.
Return Value
Type:
Objectthe value which is the result of the expression defined on the specified field
Implements
IDataAccessAdapterGetScalar(IEntityFields2, IPredicate, IGroupByCollection, IRelationCollection)See Also