ColumnView.FilterEditorCreated Event

Allows you to customize the Filter Editor before it is displayed on screen.

Namespace: DevExpress.XtraGrid.Views.Base

Assembly: DevExpress.XtraGrid.v24.2.dll

Declaration

C#

[DXCategory("Behavior")]
public event FilterControlEventHandler FilterEditorCreated

VB.NET

<DXCategory("Behavior")>
Public Event FilterEditorCreated As FilterControlEventHandler

Event Data

The FilterEditorCreated event's data class is FilterControlEventArgs. The following properties provide information specific to this event:

Property	Description
Context	Provides access to the ExpressionEditorContext object, which allows you to customize the FilterEditorControl‘s “Text” tab. Inherited from BaseFilterControlEventArgs.
FilterBuilder	Gets the form that displays the Filter Control.
FilterControl	Gets the Filter Control that displays filter criteria. This property returns null if the ColumnViewOptionsFilter.DefaultFilterEditorView property is set to any value except Visual.
FilterEditor	Gets the FilterControl (in Visual view mode) or embedded FilterControl (in VisualText, TextVisual and Text view modes). Inherited from BaseFilterControlEventArgs.
FilterEditorForm	Inherited from BaseFilterControlEventArgs.
IFilterControl	Gets the Filter Control that displays filter criteria.
IFilterEditor	Provides access to the currently used Filter Control (FilterControl or FilterEditorControl) via an interface. Inherited from BaseFilterControlEventArgs.
ShowFilterEditor	Gets or sets whether to display the Filter Editor (the form that embeds the Filter Editor). Inherited from BaseFilterControlEventArgs.

Remarks

Use the FilterEditorCreated event to customize the Filter Editor, or prevent it from being displayed. The event fires each time the Filter Editor is to be displayed on screen.

Example

This example handles the FilterControl.CustomValueEditor event to assign custom editors (Spin Editor and Calc Editor) to value operands in Data Grid’s embedded FilterControl.

The Data Grid’s ColumnView.FilterEditorCreated event is used to subscribe to the FilterControl.CustomValueEditor event.

Form1.cs

private void gridView1_FilterEditorCreated(object sender, FilterControlEventArgs e) {
    e.FilterEditor.CustomValueEditor += FilterEditor_CustomValueEditor;
}

readonly RepositoryItemSpinEdit spinEdit = new RepositoryItemSpinEdit();
readonly RepositoryItemCalcEdit calcEdit = new RepositoryItemCalcEdit();

private void FilterEditor_CustomValueEditor(object sender, CustomValueEditorArgs e) {
    if (e.Node.FirstOperand.PropertyName != "Payment") return;
    RepositoryItemTextEdit item = null;
    if (e.ElementIndex == 2)
        item = spinEdit;
    else
        item = calcEdit;
    var settings = item.MaskSettings.Configure<MaskSettings.Numeric>();
    settings.MaskExpression = "c";
    e.RepositoryItem = item;
}

Form1.vb

Private Sub gridView1_FilterEditorCreated(ByVal sender As Object, ByVal e As FilterControlEventArgs) Handles gridView1.FilterEditorCreated
    AddHandler e.FilterControl.CustomValueEditor, AddressOf FilterControl_CustomValueEditor
End Sub

Private ReadOnly spinEdit As New RepositoryItemSpinEdit()
Private ReadOnly calcEdit As New RepositoryItemCalcEdit()

Private Sub FilterControl_CustomValueEditor(ByVal sender As Object, ByVal e As CustomValueEditorArgs)
    If e.Node.FirstOperand.PropertyName <> "Payment" Then
        Return
    End If
    Dim item As RepositoryItemTextEdit = Nothing
    If e.ElementIndex = 2 Then
        item = spinEdit
    Else
        item = calcEdit
    End If
    Dim settings As MaskSettings.Numeric = item.MaskSettings.Configure(Of MaskSettings.Numeric)()
    settings.MaskExpression = "c"
    e.RepositoryItem = item
End Sub

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the FilterEditorCreated 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-create-and-register-custom-filter-editor-functions/CS/DXApplication5/Main.cs#L17

gridView1.QueryCustomFunctions += OnQueryCustomFunctions;
gridView1.FilterEditorCreated += OnFilterEditorCreated;
gridView1.OptionsView.FilterCriteriaDisplayStyle = DevExpress.XtraEditors.FilterCriteriaDisplayStyle.Visual;

VB.NET

how-to-create-and-register-custom-filter-editor-functions/VB/DXApplication5/Main.vb#L19

AddHandler gridView1.QueryCustomFunctions, AddressOf OnQueryCustomFunctions
AddHandler gridView1.FilterEditorCreated, AddressOf OnFilterEditorCreated
gridView1.OptionsView.FilterCriteriaDisplayStyle = DevExpress.XtraEditors.FilterCriteriaDisplayStyle.Visual