CriteriaOperator.RegisterCustomFunctions(IEnumerable<ICustomFunctionOperator>) Method
Registers specified custom functions to use in any CriteriaOperator-based criteria in your application.
Namespace: DevExpress.Data.Filtering
Assembly: DevExpress.Data.v23.2.dll
NuGet Package: DevExpress.Data
Declaration
public static void RegisterCustomFunctions(
IEnumerable<ICustomFunctionOperator> customFunctions
)Parameters
| Name | Type | Description |
|---|---|---|
| customFunctions | IEnumerable<ICustomFunctionOperator> | A collection of ICustomFunctionOperator objects specifying custom functions to register. |
Remarks
To access custom functions registered via the RegisterCustomFunctions and CriteriaOperator.RegisterCustomFunction method calls, call the CriteriaOperator.GetCustomFunctions function. To search for a specific registered custom function, call the CriteriaOperator.GetCustomFunction function.
Note
The RegisterCustomFunctions method throws an exception if a function contained in the customFunction collection has already been registered.