ASPxTreeList.HeaderFilterEditorInitialize Event

Occurs when a header filter editor is initialized.

Namespace: DevExpress.Web.ASPxTreeList

Assembly: DevExpress.Web.ASPxTreeList.v22.1.dll

Declaration

C#

public event ASPxTreeListHeaderFilterEditorInitializeEventHandler HeaderFilterEditorInitialize

VB.NET

Public Event HeaderFilterEditorInitialize As ASPxTreeListHeaderFilterEditorInitializeEventHandler

Event Data

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

Property	Description
Column	Gets the column to which the processed editor belongs.
Editor	Gets the editor in the header filter. Inherited from ASPxGridHeaderFilterEditorInitializeEventArgs.
EditorType	Gets the editor type. Inherited from ASPxGridHeaderFilterEditorInitializeEventArgs.

Remarks

You can use the HeaderFilterEditorInitialize event to customize the header filter editor when it is initialized.

ASPX

<ASPxTreeList ID="ASPxTreeList1" onHeaderFilterEditorInitialize="ASPxTreeList1_HeaderFilterEditorInitialize">
    ...
</ASPxTreeList>

C#

protected void ASPxTreeList1_HeaderFilterEditorInitialize(object sender, ASPxTreeListHeaderFilterEditorInitializeEventArgs e) {
    if (e.EditorType = DevExpress.Web.GridHeaderFilterEditorType.Calendar){
        // your code
    }
}

Note that the HeaderFilterEditorInitialize event supports only editors that do not send callbacks.