AggregateOperand Class
The operator that calculates an aggregate expression (MIN, MAX, SUM, etc.).
Namespace: DevExpress.XamarinForms.Core.Filtering
Assembly: DevExpress.XamarinForms.Core.dll
NuGet Package: DevExpress.XamarinForms.Core
#Declaration
[Serializable]
public class AggregateOperand :
CriteriaOperator
#Remarks
You can use the AggregateOperand operand to compose criteria which are based on the collection properties to filter the collection. It represents the results of aggregate operations performed on these types of properties.
Note
- Aggregate
Operand. must specify a path through object relationships (Aggregated Expression Sum([Income])
orSum([Cargo.
), and does not support nested expressions and complex property paths likePrice]) Max
.(Document.<Person ID>Last Name) - Aggregated
Expression may producenull
instead of zero for an empty collection on a server side.