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CriteriaOperator.GetCustomFunction(String) Method

Returns a registered custom function with the specified name.

Namespace: DevExpress.XamarinForms.Core.Filtering

Assembly: DevExpress.XamarinForms.Core.dll

NuGet Package: DevExpress.XamarinForms.Core

#Declaration

C#
public static ICustomFunctionOperator GetCustomFunction(
    string functionName
)

#Parameters

Name Type Description
functionName String

The name of a function to return.

#Returns

Type Description
ICustomFunctionOperator

The custom function.

#Remarks

Note that all custom functions the method can return must be registered via the CriteriaOperator.RegisterCustomFunction or CriteriaOperator.RegisterCustomFunctions method.

You can use the CriteriaOperator.UnregisterCustomFunction(String) or CriteriaOperator.UnregisterCustomFunction(ICustomFunctionOperator) to cancel function registration and this method will not return a function.

See Also