ConnectionProviderSql.RegisterCustomAggregate(ICustomAggregateFormattable) Method
Registers a custom aggregate function to use in any CriteriaOperator-based criteria in your application.
Namespace: DevExpress.Xpo.DB
Assembly: DevExpress.Data.v23.2.dll
NuGet Package: DevExpress.Data
Declaration
Parameters
Name | Type | Description |
---|---|---|
customAggregate | ICustomAggregateFormattable | A custom aggregate function to register. |
Remarks
To search for a specific registered custom function, call the CriteriaOperator.GetCustomAggregate function.
Note
- The RegisterCustomAggregate method throws an exception if the customAggregate has already been registered.
- The customAggregate must have a unique Name property value. If you use standard aggregate names (Min, Max, Sum, Avg, Single, Exists, and Count), an exception is raised.
See Also