Log In
Home
Support
Demos
Documentation
Blogs
Training
Webinars
[Expand]General Information
[Collapse]WinForms Controls
  Prerequisites
 [Expand]What's Installed
 [Expand]Build an Application
 [Expand]Controls and Libraries
 [Expand]Common Features
  Get More Help
 [Collapse]API Reference
  [Expand]DevExpress.DataAccess.UI.Design
  [Expand]DevExpress.DataAccess.UI.EntityFramework
  [Expand]DevExpress.DataAccess.UI.Excel
  [Expand]DevExpress.DataAccess.UI.Localization
  [Expand]DevExpress.DataAccess.UI.ObjectBinding
  [Expand]DevExpress.DataAccess.UI.Sql
  [Expand]DevExpress.DataAccess.UI.Wizard
  [Expand]DevExpress.DataAccess.UI.Wizard.Services
  [Expand]DevExpress.DataAccess.UI.Wizard.Views
  [Expand]DevExpress.DocumentView
  [Expand]DevExpress.DocumentView.Controls
  [Expand]DevExpress.LookAndFeel
  [Expand]DevExpress.LookAndFeel.Helpers
  [Expand]DevExpress.Skins
  [Expand]DevExpress.Snap
  [Expand]DevExpress.Snap.API.Native
  [Expand]DevExpress.Snap.Core
  [Expand]DevExpress.Snap.Core.API
  [Expand]DevExpress.Snap.Core.Fields
  [Expand]DevExpress.Snap.Core.Forms
  [Expand]DevExpress.Snap.Core.Options
  [Expand]DevExpress.Snap.Core.Services
  [Expand]DevExpress.Snap.Extensions
  [Expand]DevExpress.Snap.Extensions.Localization
  [Expand]DevExpress.Snap.Localization
  [Expand]DevExpress.Snap.Options
  [Expand]DevExpress.Snap.Services
  [Expand]DevExpress.Utils
  [Expand]DevExpress.Utils.Animation
  [Expand]DevExpress.Utils.Controls
  [Expand]DevExpress.Utils.Drawing
  [Expand]DevExpress.Utils.Menu
  [Expand]DevExpress.Utils.Taskbar
  [Expand]DevExpress.Utils.Taskbar.Core
  [Expand]DevExpress.Utils.UI.Localization
  [Expand]DevExpress.Utils.VisualEffects
  [Expand]DevExpress.Utils.Win
  [Expand]DevExpress.XtraBars
  [Expand]DevExpress.XtraBars.Alerter
  [Expand]DevExpress.XtraBars.Docking
  [Expand]DevExpress.XtraBars.Docking2010
  [Expand]DevExpress.XtraBars.Docking2010.Customization
  [Expand]DevExpress.XtraBars.Docking2010.Views
  [Expand]DevExpress.XtraBars.Docking2010.Views.NativeMdi
  [Expand]DevExpress.XtraBars.Docking2010.Views.Tabbed
  [Expand]DevExpress.XtraBars.Docking2010.Views.Widget
  [Expand]DevExpress.XtraBars.Docking2010.Views.WindowsUI
  [Expand]DevExpress.XtraBars.Localization
  [Expand]DevExpress.XtraBars.Navigation
  [Expand]DevExpress.XtraBars.Ribbon
  [Expand]DevExpress.XtraBars.Ribbon.Gallery
  [Expand]DevExpress.XtraBars.Ribbon.ViewInfo
  [Expand]DevExpress.XtraBars.ToastNotifications
  [Expand]DevExpress.XtraBars.Utils
  [Expand]DevExpress.XtraBars.WinRTLiveTiles
  [Expand]DevExpress.XtraCharts
  [Expand]DevExpress.XtraCharts.Designer
  [Expand]DevExpress.XtraCharts.Wizard
  [Expand]DevExpress.XtraDataLayout
  [Expand]DevExpress.XtraDiagram
  [Expand]DevExpress.XtraDiagram.Options
  [Expand]DevExpress.XtraEditors
  [Expand]DevExpress.XtraEditors.ButtonPanel
  [Expand]DevExpress.XtraEditors.Calendar
  [Expand]DevExpress.XtraEditors.Camera
  [Expand]DevExpress.XtraEditors.Container
  [Expand]DevExpress.XtraEditors.Controls
  [Expand]DevExpress.XtraEditors.CustomEditor
  [Expand]DevExpress.XtraEditors.DXErrorProvider
  [Expand]DevExpress.XtraEditors.Filtering
  [Expand]DevExpress.XtraEditors.Mask
  [Expand]DevExpress.XtraEditors.Persistent
  [Collapse]DevExpress.XtraEditors.Repository
   [Expand]BaseRepositoryItemCheckEdit Class
    CalendarSelectionMode Enumeration
    CalendarView Enumeration
   [Expand]EditorsRepositoryBase Class
    ExportMode Enumeration
    GridLookUpViewType Enumeration
   [Expand]PersistentRepository Class
   [Expand]RepositoryItem Class
   [Expand]RepositoryItemBaseProgressBar Class
   [Expand]RepositoryItemBaseSpinEdit Class
   [Expand]RepositoryItemBlobBaseEdit Class
   [Expand]RepositoryItemBreadCrumbEdit Class
   [Expand]RepositoryItemButtonEdit Class
   [Expand]RepositoryItemCalcEdit Class
   [Expand]RepositoryItemCheckedComboBoxEdit Class
   [Expand]RepositoryItemCheckEdit Class
   [Expand]RepositoryItemCollection Class
   [Expand]RepositoryItemColorEdit Class
   [Expand]RepositoryItemColorPickEdit Class
   [Expand]RepositoryItemComboBox Class
   [Collapse]RepositoryItemDateEdit Class
     RepositoryItemDateEdit Members
     RepositoryItemDateEdit Constructor
    [Collapse]RepositoryItemDateEdit Properties
      AllowAnimatedContentChange Property
      AllowClickInactiveDays Property
      AppearanceCalendar Property
      AppearanceDropDownDisabledDate Property
      AppearanceDropDownHeader Property
      AppearanceDropDownHeaderHighlight Property
      AppearanceDropDownHighlight Property
      AppearanceWeekNumber Property
      CalendarDateEditing Property
      CalendarDateTimeFormatInfo Property
      CalendarTimeEditing Property
      CalendarTimeProperties Property
      CalendarView Property
      CellSize Property
      CellStyleProvider Property
      ColumnCount Property
      DateOnError Property
      DisabledDateProvider Property
      DisplayFormat Property
      DrawCellLines Property
      EditFormat Property
      EditMask Property
      EditorTypeName Property
      FirstDayOfWeek Property
      HighlightHolidays Property
      HighlightTodayCell Property
      HighlightTodayCellWhenSelected Property
      MaxValue Property
      MinValue Property
      NullDate Property
      NullDateCalendarValue Property
      PopupFormMinSize Property
      PopupFormSize Property
      Properties Property
      RowCount Property
      SelectionMode Property
      ShowClear Property
      ShowMonthHeaders Property
      ShowMonthNavigationButtons Property
      ShowOk Property
      ShowToday Property
      ShowWeekNumbers Property
      ShowYearNavigationButtons Property
      SpecialDateProvider Property
      TimeEditWidth Property
      TodayDate Property
      TouchUIMinuteIncrement Property
      TouchUISecondIncrement Property
      VistaCalendarInitialViewStyle Property
      VistaCalendarViewStyle Property
      VistaDisplayMode Property
      VistaEditTime Property
      VistaTimeProperties Property
      WeekDayAbbreviationLength Property
      WeekNumberRule Property
    [Expand]RepositoryItemDateEdit Events
    [Expand]RepositoryItemDateEdit Methods
   [Expand]RepositoryItemFontEdit Class
   [Expand]RepositoryItemGridLookUpEdit Class
   [Expand]RepositoryItemGridLookUpEditBase Class
   [Expand]RepositoryItemHyperLinkEdit Class
   [Expand]RepositoryItemImageComboBox Class
   [Expand]RepositoryItemImageEdit Class
   [Expand]RepositoryItemLookUpEdit Class
   [Expand]RepositoryItemLookUpEditBase Class
   [Expand]RepositoryItemMarqueeProgressBar Class
   [Expand]RepositoryItemMemoEdit Class
   [Expand]RepositoryItemMemoExEdit Class
   [Expand]RepositoryItemMRUEdit Class
   [Expand]RepositoryItemPageNumberEdit Class
   [Expand]RepositoryItemPickImage Class
   [Expand]RepositoryItemPictureEdit Class
   [Expand]RepositoryItemPopupBase Class
   [Expand]RepositoryItemPopupBaseAutoSearchEdit Class
   [Expand]RepositoryItemPopupContainerEdit Class
   [Expand]RepositoryItemPopupGalleryEdit Class
   [Expand]RepositoryItemProgressBar Class
   [Expand]RepositoryItemRadioGroup Class
   [Expand]RepositoryItemRangeTrackBar Class
   [Expand]RepositoryItemRatingControl Class
   [Expand]RepositoryItemRichTextEdit Class
   [Expand]RepositoryItemSearchControl Class
   [Expand]RepositoryItemSearchLookUpEdit Class
   [Expand]RepositoryItemSparklineEdit Class
   [Expand]RepositoryItemSpinEdit Class
   [Expand]RepositoryItemTextEdit Class
   [Expand]RepositoryItemTimeEdit Class
   [Expand]RepositoryItemTimeSpanEdit Class
   [Expand]RepositoryItemToggleSwitch Class
   [Expand]RepositoryItemTokenEdit Class
   [Expand]RepositoryItemTrackBar Class
   [Expand]RepositoryItemTreeListLookUpEdit Class
   [Expand]RepositoryItemZoomTrackBar Class
   [Expand]RichTextEditBehaviorOptions Class
   [Expand]RichTextEditHorizontalScrollbarOptions Class
    TimeEditStyle Enumeration
   [Expand]TrackBarRange Structure
  [Expand]DevExpress.XtraEditors.ViewInfo
  [Expand]DevExpress.XtraFilterEditor
  [Expand]DevExpress.XtraGauges.Presets.Styles
  [Expand]DevExpress.XtraGauges.Win
  [Expand]DevExpress.XtraGauges.Win.Base
  [Expand]DevExpress.XtraGauges.Win.Gauges.Circular
  [Expand]DevExpress.XtraGauges.Win.Gauges.Digital
  [Expand]DevExpress.XtraGauges.Win.Gauges.Linear
  [Expand]DevExpress.XtraGauges.Win.Gauges.State
  [Expand]DevExpress.XtraGrid
  [Expand]DevExpress.XtraGrid.Columns
  [Expand]DevExpress.XtraGrid.EditForm
  [Expand]DevExpress.XtraGrid.FilterEditor
  [Expand]DevExpress.XtraGrid.Localization
  [Expand]DevExpress.XtraGrid.Views.BandedGrid
  [Expand]DevExpress.XtraGrid.Views.BandedGrid.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Base
  [Expand]DevExpress.XtraGrid.Views.Base.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Card
  [Expand]DevExpress.XtraGrid.Views.Card.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Grid
  [Expand]DevExpress.XtraGrid.Views.Grid.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Layout
  [Expand]DevExpress.XtraGrid.Views.Layout.Events
  [Expand]DevExpress.XtraGrid.Views.Layout.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Printing
  [Expand]DevExpress.XtraGrid.Views.Tile
  [Expand]DevExpress.XtraGrid.Views.WinExplorer
  [Expand]DevExpress.XtraGrid.WinExplorer
  [Expand]DevExpress.XtraLayout
  [Expand]DevExpress.XtraLayout.Customization
  [Expand]DevExpress.XtraLayout.HitInfo
  [Expand]DevExpress.XtraLayout.Localization
  [Expand]DevExpress.XtraLayout.Utils
  [Expand]DevExpress.XtraMap
  [Expand]DevExpress.XtraMap.Printing
  [Expand]DevExpress.XtraNavBar
  [Expand]DevExpress.XtraNavBar.ViewInfo
  [Expand]DevExpress.XtraPdfViewer
  [Expand]DevExpress.XtraPdfViewer.Commands
  [Expand]DevExpress.XtraPdfViewer.Localization
  [Expand]DevExpress.XtraPivotGrid
  [Expand]DevExpress.XtraPivotGrid.Data
  [Expand]DevExpress.XtraPrinting
  [Expand]DevExpress.XtraPrinting.Control
  [Expand]DevExpress.XtraPrinting.Preview
  [Expand]DevExpress.XtraPrintingLinks
  [Expand]DevExpress.XtraReports.UI
  [Expand]DevExpress.XtraRichEdit
  [Expand]DevExpress.XtraRichEdit.Commands
  [Expand]DevExpress.XtraRichEdit.Export
  [Expand]DevExpress.XtraRichEdit.Import
  [Expand]DevExpress.XtraRichEdit.Localization
  [Expand]DevExpress.XtraRichEdit.Menu
  [Expand]DevExpress.XtraScheduler
  [Expand]DevExpress.XtraScheduler.Drawing
  [Expand]DevExpress.XtraScheduler.Printing
  [Expand]DevExpress.XtraScheduler.Reporting
  [Expand]DevExpress.XtraScheduler.Reporting.UI
  [Expand]DevExpress.XtraScheduler.Services
  [Expand]DevExpress.XtraScheduler.Services.Implementation
  [Expand]DevExpress.XtraScheduler.UI
  [Expand]DevExpress.XtraSpellChecker
  [Expand]DevExpress.XtraSpellChecker.Localization
  [Expand]DevExpress.XtraSplashForm
  [Expand]DevExpress.XtraSplashScreen
  [Expand]DevExpress.XtraSpreadsheet
  [Expand]DevExpress.XtraSpreadsheet.Services
  [Expand]DevExpress.XtraTab
  [Expand]DevExpress.XtraTab.Buttons
  [Expand]DevExpress.XtraTab.ViewInfo
  [Expand]DevExpress.XtraTabbedMdi
  [Expand]DevExpress.XtraToolbox
  [Expand]DevExpress.XtraTreeList
  [Expand]DevExpress.XtraTreeList.Columns
  [Expand]DevExpress.XtraTreeList.Data
  [Expand]DevExpress.XtraTreeList.Localization
  [Expand]DevExpress.XtraTreeList.Menu
  [Expand]DevExpress.XtraTreeList.Nodes
  [Expand]DevExpress.XtraTreeList.Nodes.Operations
  [Expand]DevExpress.XtraTreeList.StyleFormatConditions
  [Expand]DevExpress.XtraTreeMap
  [Expand]DevExpress.XtraVerticalGrid
  [Expand]DevExpress.XtraVerticalGrid.Events
  [Expand]DevExpress.XtraVerticalGrid.Localization
  [Expand]DevExpress.XtraVerticalGrid.Rows
  [Expand]DevExpress.XtraWaitForm
  [Expand]DevExpress.XtraWizard
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Document Server
[Expand]Reporting
[Expand]Report Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]CodeRush
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

RepositoryItemDateEdit.NullDate Property

Gets or sets a value that is interpreted as the null date.

Namespace:DevExpress.XtraEditors.Repository
Assembly:DevExpress.XtraEditors.v17.1.dll

Expanded Syntax

Property value

Type: Object
A value interpreted as the null date.
The default is null.

Expanded Remarks

The editor's DateEdit.DateTime property (which is of the DateTime type) is in sync with the editor's EditValue property (which is of the Object type). When you set the DateTime property, the same value is assigned to the EditValue property. When you assign a value to the EditValue property, this value is converted to the DateTime type and assigned to the editor's DateTime property.

When the EditValue property is set to null or any object that cannot be converted to a valid DateTime value, the editor's DateTime property is set to a special null date. By default, the null date is equal to the DateTime.MinValue static field value. You can specify a custom null date with the NullDate property. If the NullDate property specifies an object that cannot be converted to a valid DateTime value, DateTime.MinValue static field value is regarded as the null date.

When the editor's EditValue property is set to null, DBNull or NullDate (provided that NullDate is set to a non-default value), the editor displays the string specified by the RepositoryItem.NullText property (an empty string by default).

Note

The NullDate property is not supported when a DateEdit control is bound to a data source and the DataSourceUpdateMode.OnPropertyChanged flag is set in the corresponding System.Windows.Forms.Binding object.

Expanded See Also

How would you rate this topic?​​​​​​​