FilterControl.BeforeShowValueEditor Event

Fires before displaying an editor used to edit operands in the Filter Editor.

Namespace: DevExpress.Xpf.Editors.Filtering

Assembly: DevExpress.Xpf.Core.v19.1.dll

Declaration

C#

public event ShowValueEditorEventHandler BeforeShowValueEditor

VB.NET

Public Event BeforeShowValueEditor As ShowValueEditorEventHandler

Event Data

The BeforeShowValueEditor event's data class is DevExpress.Xpf.Editors.Filtering.ShowValueEditorEventArgs.

Remarks

To access the operand value currently being edited and customize the editor used to edit the value, use the parameters provided by the event.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the BeforeShowValueEditor event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-customize-filtercontrols-operation-list-t165800/CS/CustomFilterPopupExample/MainWindow.xaml.cs#L31

{
    e.FilterControl.BeforeShowValueEditor += FilterControl_BeforeShowValueEditor;
}

VB.NET

how-to-customize-filtercontrols-operation-list-t165800/VB/CustomFilterPopupExample/MainWindow.xaml.vb#L29

Private Sub CustomTableView_FilterEditorCreated(ByVal sender As Object, ByVal e As DevExpress.Xpf.Grid.FilterEditorEventArgs)
    AddHandler e.FilterControl.BeforeShowValueEditor, AddressOf FilterControl_BeforeShowValueEditor
End Sub