CustomFunctions.Unregister(String) Method

Unregisters a custom function with the specified name from the End-User Report Designer‘s Expression Editor.

Namespace: DevExpress.XtraReports.Expressions

Assembly: DevExpress.XtraReports.v22.2.dll

NuGet Package: DevExpress.Reporting.Core

Declaration

C#

public static bool Unregister(
    string name
)

VB.NET

Public Shared Function Unregister(
    name As String
) As Boolean

Parameters

Name	Type	Description
name	String	A String object that the name of a custom function to unregister.

Returns

Type	Description
Boolean	true, if a function with the specified name has successfully been unregistred; otherwise, false.

Remarks

Call the Unregister metod at applicaton startup to remove a registered custom function:

CS

DevExpress.XtraReports.Expressions.CustomFunctions.Unregister("CustomFormatFunction");

VB

DevExpress.XtraReports.Expressions.CustomFunctions.Unregister("CustomFormatFunction")

After this code is executed, the function is not available in the Expression Editor and won’t be evaluated in expressions.

Tip

A custom function in DevExpress Reporting is an object that descends from the ReportCustomFunctionOperatorBase abstract class. Review the following topic for more information and code examples: CustomFunctions.