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.
[DXCategory("Events")] public event QueryCustomFunctionsEventHandler QueryCustomFunctions
<DXCategory("Events")> Public Event QueryCustomFunctions As QueryCustomFunctionsEventHandler
The QueryCustomFunctions event's data class is DevExpress.XtraEditors.Filtering.CustomFunctionEventArgs.
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