CriteriaOperator.RegisterCustomFunction(ICustomFunctionOperator) Method

Registers the specified custom function.

Namespace: DevExpress.XamarinForms.Core.Filtering

Assembly: DevExpress.XamarinForms.Core.dll

NuGet Package: DevExpress.XamarinForms.Core

Declaration

public static void RegisterCustomFunction(
    ICustomFunctionOperator customFunction
)

Parameters

Name	Type	Description
customFunction	ICustomFunctionOperator	Custom function to register in the Criteria Language.

Remarks

The CriteriaOperator.GetCustomFunction(String) and CriteriaOperator.GetCustomFunctions methods return registered functions.

You can use the CriteriaOperator.UnregisterCustomFunction(String) or CriteriaOperator.UnregisterCustomFunction(ICustomFunctionOperator) to cancel function registration.