http://www.devexpress.com/Support/Center/Example/Details/E1497
using System; using DevExpress.ExpressApp.Model; using DevExpress.ExpressApp.Editors; using DevExpress.ExpressApp.Win.Editors; namespace WinSolution.Module.Win { [PropertyEditor(typeof(DateTime))] public class MyDatePropertyEditor : DatePropertyEditor { public MyDatePropertyEditor(Type objectType, IModelMemberViewItem item) : base(objectType, item) { } protected override void SetupRepositoryItem(DevExpress.XtraEditors.Repository.RepositoryItem item) { base.SetupRepositoryItem(item); RepositoryItemDateTimeEdit defaultItem = (RepositoryItemDateTimeEdit)item; defaultItem.VistaDisplayMode = DevExpress.Utils.DefaultBoolean.True; defaultItem.VistaEditTime = DevExpress.Utils.DefaultBoolean.True; } } }