public static void CustomizeViewItemControl<T>(
    this DetailView view,
    Controller controller,
    Action<T> customizeAction,
    params string[] viewItemsId
)
    where T : ViewItem

<ExtensionAttribute>
Public Shared Sub CustomizeViewItemControl(Of T As ViewItem)(
    view As DetailView,
    controller As Controller,
    customizeAction As Action(Of T),
    ParamArray viewItemsId As String()
)

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Win.Editors;
// ...
public class CustomizeDateEditorController : ObjectViewController<DetailView, DemoTask> {
    protected override void OnActivated() {
        base.OnActivated();
        View.CustomizeViewItemControl<DatePropertyEditor>(this, CustomizeDateEditor, nameof(DemoTask.StartDate), nameof(DemoTask.DueDate));
    }
    private void CustomizeDateEditor(DatePropertyEditor propertyEditor) {
        propertyEditor.Control.Properties.ShowWeekNumbers = true;
    }
}