FilterControl.QueryCustomFunctions Event

Allows you to add custom-function-based filters (for example, ‘discount is more than 15%’) to Excel-style pop-up filter menus and/or the filter editor.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraEditors.v23.2.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

[DXCategory("Events")]
public event QueryCustomFunctionsEventHandler QueryCustomFunctions

VB.NET

<DXCategory("Events")>
Public Event QueryCustomFunctions As QueryCustomFunctionsEventHandler

Event Data

The QueryCustomFunctions event's data class is DevExpress.XtraEditors.Filtering.CustomFunctionEventArgs.

Remarks

To create a custom filter function (for example, ‘discount is more than 15%’), and add this function to Excel-style pop-up filter menus and/or the filter editor, do the following:

• implement a custom function
• register the function
• add the function to pop-up filter menus and the filter editor in a QueryCustomFunctions event handler