[Expand]General Information
[Expand]WinForms Controls
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Reporting
[Expand]Report and Dashboard Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Collapse]Cross-Platform Core Libraries
 [Expand]DevExpress Data Library
 [Expand]DevExpress Pivot Grid Core Library
 [Expand]Miscellaneous
 [Collapse]API Reference
  [Expand]DevExpress.Data
  [Expand]DevExpress.Data.Browsing
  [Expand]DevExpress.Data.Browsing.Design
  [Expand]DevExpress.Data.Camera
  [Expand]DevExpress.Data.Controls
  [Expand]DevExpress.Data.Controls.ExpressionEditor
  [Expand]DevExpress.Data.Entity
  [Expand]DevExpress.Data.Filtering
  [Expand]DevExpress.Data.Filtering.Exceptions
  [Expand]DevExpress.Data.Filtering.Helpers
  [Expand]DevExpress.Data.Linq
  [Expand]DevExpress.Data.ODataLinq
  [Expand]DevExpress.Data.PivotGrid
  [Expand]DevExpress.Data.PLinq
  [Expand]DevExpress.Data.TreeList
  [Expand]DevExpress.Data.Utils
  [Expand]DevExpress.Data.Utils.ServiceModel
  [Expand]DevExpress.Data.WcfLinq
  [Expand]DevExpress.Data.WizardFramework
  [Expand]DevExpress.Data.XtraReports.DataProviders
  [Expand]DevExpress.Data.XtraReports.Labels
  [Expand]DevExpress.Data.XtraReports.ServiceModel
  [Expand]DevExpress.Data.XtraReports.ServiceModel.DataContracts
  [Expand]DevExpress.Data.XtraReports.Wizard
  [Expand]DevExpress.Data.XtraReports.Wizard.Presenters
  [Expand]DevExpress.Data.XtraReports.Wizard.Views
  [Expand]DevExpress.DataAccess
  [Expand]DevExpress.DataAccess.ConnectionParameters
  [Expand]DevExpress.DataAccess.DataFederation
  [Expand]DevExpress.DataAccess.EntityFramework
  [Expand]DevExpress.DataAccess.Excel
  [Expand]DevExpress.DataAccess.ExpressionEditor
  [Expand]DevExpress.DataAccess.Json
  [Expand]DevExpress.DataAccess.Localization
  [Expand]DevExpress.DataAccess.ObjectBinding
  [Expand]DevExpress.DataAccess.Sql
  [Expand]DevExpress.DataAccess.Sql.DataApi
  [Expand]DevExpress.DataAccess.UI
  [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.DataAccess.Web
  [Expand]DevExpress.DataAccess.Wizard
  [Expand]DevExpress.DataAccess.Wizard.Model
  [Expand]DevExpress.DataAccess.Wizard.Presenters
  [Expand]DevExpress.DataAccess.Wizard.Services
  [Expand]DevExpress.DataAccess.Wizard.Views
  [Expand]DevExpress.Diagram.Core
  [Expand]DevExpress.Diagram.Core.Layout
  [Expand]DevExpress.Diagram.Core.Localization
  [Expand]DevExpress.Diagram.Core.Shapes
  [Expand]DevExpress.Diagram.Core.Themes
  [Expand]DevExpress.DocumentServices.ServiceModel
  [Expand]DevExpress.DocumentServices.ServiceModel.Client
  [Expand]DevExpress.DocumentServices.ServiceModel.DataContracts
  [Expand]DevExpress.DocumentView
  [Expand]DevExpress.Entity.Model
  [Expand]DevExpress.Entity.ProjectModel
  [Expand]DevExpress.Export
  [Expand]DevExpress.Export.Xl
  [Expand]DevExpress.Map
  [Expand]DevExpress.Mvvm
  [Expand]DevExpress.Mvvm.DataAnnotations
  [Expand]DevExpress.Mvvm.DataModel
  [Expand]DevExpress.Mvvm.Gantt
  [Expand]DevExpress.Mvvm.ModuleInjection
  [Expand]DevExpress.Mvvm.UI
  [Expand]DevExpress.Mvvm.Utils
  [Expand]DevExpress.Mvvm.ViewModel
  [Expand]DevExpress.Office.Crypto
  [Expand]DevExpress.PivotGrid.Printing
  [Expand]DevExpress.Printing
  [Expand]DevExpress.Printing.Core
  [Expand]DevExpress.Printing.ExportHelpers
  [Expand]DevExpress.ReportServer.Printing
  [Expand]DevExpress.ReportServer.Printing.Services
  [Expand]DevExpress.ReportServer.ServiceModel.Client
  [Expand]DevExpress.ReportServer.ServiceModel.ConnectionProviders
  [Expand]DevExpress.ReportServer.ServiceModel.DataContracts
  [Expand]DevExpress.Schedule
  [Expand]DevExpress.Security.Resources
  [Expand]DevExpress.Services
  [Expand]DevExpress.Sparkline
  [Expand]DevExpress.TreeMap
  [Expand]DevExpress.Utils
  [Expand]DevExpress.Utils.Commands
  [Expand]DevExpress.Utils.Controls
  [Expand]DevExpress.Utils.Filtering.Internal
  [Expand]DevExpress.Utils.IoC
  [Expand]DevExpress.Utils.Localization
  [Expand]DevExpress.Utils.Serializing.Helpers
  [Expand]DevExpress.Utils.Svg
  [Expand]DevExpress.WebUtils
  [Expand]DevExpress.Xpf.Core
  [Expand]DevExpress.Xpf.Printing
  [Expand]DevExpress.Xpo
  [Expand]DevExpress.Xpo.DB
  [Expand]DevExpress.Xpo.DB.Exceptions
  [Expand]DevExpress.Xpo.DB.Helpers
  [Expand]DevExpress.Xpo.Helpers
  [Expand]DevExpress.XtraCharts
  [Expand]DevExpress.XtraCharts.Localization
  [Expand]DevExpress.XtraCharts.Native
  [Expand]DevExpress.XtraCharts.Printing
  [Expand]DevExpress.XtraEditors
  [Expand]DevExpress.XtraEditors.DXErrorProvider
  [Expand]DevExpress.XtraExport.Csv
  [Expand]DevExpress.XtraGauges.Base
  [Expand]DevExpress.XtraGauges.Core
  [Expand]DevExpress.XtraGauges.Core.Base
  [Expand]DevExpress.XtraGauges.Core.Drawing
  [Expand]DevExpress.XtraGauges.Core.Localization
  [Expand]DevExpress.XtraGauges.Core.Model
  [Expand]DevExpress.XtraGauges.Core.Primitive
  [Expand]DevExpress.XtraGrid
  [Expand]DevExpress.XtraPivotGrid
  [Expand]DevExpress.XtraPivotGrid.Customization
  [Expand]DevExpress.XtraPivotGrid.Data
  [Expand]DevExpress.XtraPivotGrid.Localization
  [Expand]DevExpress.XtraPivotGrid.Selection
  [Expand]DevExpress.XtraPrinting
  [Expand]DevExpress.XtraPrinting.BarCode
  [Expand]DevExpress.XtraPrinting.Caching
  [Expand]DevExpress.XtraPrinting.DataNodes
  [Expand]DevExpress.XtraPrinting.Drawing
  [Expand]DevExpress.XtraPrinting.Export
  [Expand]DevExpress.XtraPrinting.Export.Web
  [Expand]DevExpress.XtraPrinting.Localization
  [Expand]DevExpress.XtraPrinting.Native
  [Expand]DevExpress.XtraPrinting.Shape
  [Expand]DevExpress.XtraPrinting.Shape.Native
  [Expand]DevExpress.XtraPrinting.WebClientUIControl.DataContracts
  [Expand]DevExpress.XtraPrinting.XamlExport
  [Expand]DevExpress.XtraPrintingLinks
  [Expand]DevExpress.XtraReports
  [Expand]DevExpress.XtraReports.Design
  [Expand]DevExpress.XtraReports.Parameters
  [Expand]DevExpress.XtraReports.ReportGeneration
  [Expand]DevExpress.XtraReports.UI
  [Collapse]DevExpress.XtraScheduler
   [Expand]AdditionalAppointmentsDragEventArgs Class
   [Expand]AgendaViewAppointmentDisplayOptions Class
    AllowDisplayAppointmentDependencyForm Enumeration
    AllowDisplayAppointmentForm Enumeration
   [Expand]Appointment Interface
   [Expand]AppointmentBaseCollection Class
   [Expand]AppointmentCancelEventArgs Class
   [Expand]AppointmentCollection Class
   [Expand]AppointmentConflictEventArgs Class
    AppointmentConflictEventHandler Delegate
    AppointmentConflictsMode Enumeration
    AppointmentContinueArrowDisplayType Enumeration
   [Expand]AppointmentCustomFieldMapping Class
   [Expand]AppointmentCustomFieldMappingCollection Class
   [Expand]AppointmentDependency Interface
   [Expand]AppointmentDependencyBaseCollection Class
   [Expand]AppointmentDependencyCollection Class
   [Expand]AppointmentDependencyCustomFieldMapping Class
   [Expand]AppointmentDependencyCustomFieldMappingCollection Class
   [Expand]AppointmentDependencyMappingInfo Class
    AppointmentDependencySelectionChangeAction Enumeration
    AppointmentDependencyType Enumeration
   [Expand]AppointmentDisplayOptions Class
   [Expand]AppointmentDisplayTextEventArgs Class
    AppointmentDisplayTextEventHandler Delegate
   [Expand]AppointmentDragDropOptionsBase Class
   [Expand]AppointmentDragEventArgs Class
    AppointmentDragEventHandler Delegate
   [Expand]AppointmentDragInfo Class
   [Expand]AppointmentEventArgs Class
    AppointmentEventHandler Delegate
   [Expand]AppointmentExportedEventArgs Class
    AppointmentExportedEventHandler Delegate
   [Expand]AppointmentExportingEventArgs Class
    AppointmentExportingEventHandler Delegate
   [Expand]AppointmentImportedEventArgs Class
    AppointmentImportedEventHandler Delegate
   [Expand]AppointmentImportingEventArgs Class
    AppointmentImportingEventHandler Delegate
   [Expand]AppointmentMappingInfo Class
   [Expand]AppointmentOperationEventArgs Class
    AppointmentOperationEventHandler Delegate
   [Expand]AppointmentResizeEventArgs Class
    AppointmentResizeEventHandler Delegate
   [Expand]AppointmentResourceIdCollection Class
    AppointmentSelectionChangeAction Enumeration
    AppointmentSnapToCellsMode Enumeration
    AppointmentStatusDisplayType Enumeration
    AppointmentStatusType Enumeration
   [Expand]AppointmentStorageBase Class
   [Expand]AppointmentSynchronizedEventArgs Class
    AppointmentSynchronizedEventHandler Delegate
   [Expand]AppointmentSynchronizingEventArgs Class
    AppointmentSynchronizingEventHandler Delegate
    AppointmentTimeDisplayType Enumeration
    AppointmentTimeVisibility Enumeration
    AppointmentType Enumeration
   [Expand]CancelListChangedEventArgs Class
    CancelListChangedEventHandler Delegate
   [Expand]CellsAutoHeightOptions Class
    ColorSavingType Enumeration
   [Expand]CustomFieldCollection Class
   [Expand]CustomFieldMappingBase<T> Class
   [Expand]CustomFieldMappingCollectionBase<T> Class
   [Expand]CustomizeMessageBoxCaptionEventArgs Class
    CustomizeMessageBoxCaptionEventHandler Delegate
   [Expand]DateNavigatorQueryActiveViewTypeEventArgs Class
    DateNavigatorQueryActiveViewTypeHandler Delegate
    DateTimeSavingMode Enumeration
   [Expand]DayIntervalCollection Class
   [Expand]DayViewAppointmentDisplayOptions Class
    DstBehaviorType Enumeration
   [Expand]EmptyResourceId Class
   [Expand]ExchangeAppointmentEventArgs Class
    ExchangeAppointmentEventHandler Delegate
   [Expand]ExchangeExceptionEventArgs Class
    ExchangeExceptionEventHandler Delegate
   [Expand]FetchAppointmentsEventArgs Class
    FetchAppointmentsEventHandler Delegate
    FieldValueType Enumeration
    FirstDayOfWeek Enumeration
   [Expand]FixedDurationIntervalCollection Class
   [Expand]GanttViewAppointmentDisplayOptions Class
    HeaderImageAlign Enumeration
    HeaderImageSizeMode Enumeration
   [Expand]IAppointmentDependencyFactory Interface
   [Expand]IAppointmentDependencyStorage Interface
   [Expand]IAppointmentFactory Interface
   [Expand]IAppointmentLabel Interface
   [Expand]IAppointmentLabelStorage Interface
   [Expand]IAppointmentStatus Interface
   [Expand]IAppointmentStatusStorage Interface
   [Expand]IAppointmentStorageBase Interface
   [Expand]IIdProvider Interface
   [Expand]IPersistentObject Interface
   [Expand]IPersistentObjectStorage<T> Interface
   [Expand]IRecurrenceInfo Interface
   [Expand]IResourceFactory Interface
   [Expand]IResourceStorageBase Interface
   [Expand]ISchedulerColorSchemaCollection<T> Interface
   [Expand]ISchedulerInplaceEditorEx Interface
   [Expand]ISchedulerMappingConverter Interface
   [Expand]ISchedulerStorageBase Interface
   [Expand]MappingBase Class
   [Expand]MappingCollection Class
    MappingConversionBehavior Enumeration
   [Expand]MappingInfoBase<T> Class
   [Expand]MonthIntervalCollection Class
   [Expand]MonthViewAppointmentDisplayOptions Class
   [Expand]MoreButtonClickedEventArgs Class
    MoreButtonClickedEventHandler Delegate
    MouseWheelScrollAction Enumeration
    NavigationButtonVisibility Enumeration
   [Expand]OccurrenceCalculator Class
   [Expand]OptionsSelectionBehavior Class
   [Expand]OriginalOccurrenceDateHelper Class
    PercentCompleteDisplayType Enumeration
   [Collapse]PersistentObject Class
     PersistentObject Members
    [Expand]PersistentObject Properties
    [Collapse]PersistentObject Methods
      Assign Method
      BeginUpdate Method
      CancelUpdate Method
      CanDelete Method
      Delete Method
      DeleteCore Method
      Dispose Method
      EndUpdate Method
      FromXml Method
      GetSourceObject Method
      OnContentChanged Method
      OnContentChanging Method
      RaiseChildDeleting Method
      RaiseDeleting Method
      RollbackObjectState Method
      ToXml Method
   [Expand]PersistentObjectCancelEventArgs Class
    PersistentObjectCancelEventHandler Delegate
   [Expand]PersistentObjectEventArgs Class
    PersistentObjectEventHandler Delegate
   [Expand]PersistentObjectsEventArgs Class
    PersistentObjectsEventHandler Delegate
   [Expand]PersistentObjectStorage<T> Class
    QueryDeleteAppointmentResult Enumeration
   [Expand]QueryResourceColorSchemaEventArgs Class
    QueryResourceColorSchemaEventHandler Delegate
   [Expand]QueryWorkTimeEventArgs Class
    QueryWorkTimeEventHandler Delegate
   [Expand]RangeControlAdjustEventArgs Class
    RangeControlAdjustEventHandler Delegate
    RangeControlDataDisplayType Enumeration
   [Expand]RecurrenceInfo Class
    RecurrenceRange Enumeration
    RecurrenceType Enumeration
    RecurrentAppointmentAction Enumeration
   [Expand]RecurringReminder Class
   [Expand]Reminder Class
   [Expand]ReminderAlertNotification Class
   [Expand]ReminderAlertNotificationCollection Class
   [Expand]ReminderBase Class
   [Expand]ReminderBaseAlertNotification Class
   [Expand]ReminderBaseAlertNotificationCollection Class
   [Expand]ReminderBaseEventArgs Class
   [Expand]ReminderCancelEventArgs Class
   [Expand]ReminderCollection Class
   [Expand]ReminderEventArgs Class
    ReminderEventHandler Delegate
    RemindersFormDefaultAction Enumeration
   [Expand]RemindersFormDefaultActionEventArgs Class
    RemindersFormDefaultActionEventHandler Delegate
    ResizedSide Enumeration
   [Expand]Resource Interface
   [Expand]ResourceBaseCollection Class
   [Expand]ResourceCollection Class
   [Expand]ResourceCustomFieldMapping Class
   [Expand]ResourceCustomFieldMappingCollection Class
   [Expand]ResourceEmpty Class
   [Expand]ResourceIdCollection Class
   [Expand]ResourceMappingInfo Class
    ResourceNavigatorVisibility Enumeration
   [Expand]ResourceStorageBase Class
   [Expand]SchedulerColumnPadding Class
   [Expand]SchedulerCompatibility Class
   [Expand]SchedulerControlCompatibility Class
   [Expand]SchedulerDragData Class
    SchedulerGroupType Enumeration
    SchedulerMenuItemId Enumeration
   [Expand]SchedulerNavigationButtonOptions Class
   [Expand]SchedulerNotificationOptions Class
   [Expand]SchedulerOptionsBehaviorBase Class
   [Expand]SchedulerOptionsCustomization Class
   [Expand]SchedulerOptionsViewBase Class
   [Expand]SchedulerResourceHeaderOptionsBase Class
    SchedulerScrollBarVisibility Enumeration
   [Expand]SchedulerStorageBase Class
   [Expand]SchedulerUnhandledExceptionEventArgs Class
    SchedulerUnhandledExceptionEventHandler Delegate
    SchedulerViewType Enumeration
   [Expand]SelectionBarOptions Class
    SynchronizeOperation Enumeration
   [Expand]TimeIndicatorDisplayOptionsBase Class
    TimeIndicatorVisibility Enumeration
   [Expand]TimeInterval Class
   [Expand]TimeIntervalCollection Class
   [Expand]TimeIntervalCollectionEx Class
   [Expand]TimeIntervalEventArgs Class
    TimeIntervalEventHandler Delegate
   [Expand]TimelineViewAppointmentDisplayOptions Class
    TimeMarkerVisibility Enumeration
   [Expand]TimeOfDayInterval Class
   [Expand]TimeOfDayIntervalCollection Class
   [Expand]TimeRuler Class
   [Expand]TimeRulerCollection Class
    TimeRulerHorizontalAlignment Enumeration
   [Expand]TimeScale Class
   [Expand]TimeScale15Minutes Class
   [Expand]TimeScaleCollection Class
   [Expand]TimeScaleDay Class
   [Expand]TimeScaleFixedInterval Class
   [Expand]TimeScaleHour Class
   [Expand]TimeScaleMonth Class
   [Expand]TimeScaleQuarter Class
   [Expand]TimeScaleWeek Class
   [Expand]TimeScaleYear Class
   [Expand]TimeSlot Class
   [Expand]TimeSlotCollection Class
   [Expand]TimeZoneHelper Class
    ToolTipVisibility Enumeration
    UpdateSelectionDurationAction Enumeration
    UsedAppointmentType Enumeration
   [Expand]UserInterfaceObject Class
   [Expand]UserInterfaceObjectCollection<T> Class
   [Expand]VisibleResourcesChangedEventArgs Class
    VisibleResourcesChangedEventHandler Delegate
    WeekDays Enumeration
   [Expand]WeekDaysWorkDay Class
   [Expand]WeekIntervalCollection Class
    WeekOfMonth Enumeration
   [Expand]WeekViewAppointmentDisplayOptions Class
   [Expand]WorkDaysCollection Class
   [Expand]WorkTimeInterval Class
  [Expand]DevExpress.XtraScheduler.Compatibility
  [Expand]DevExpress.XtraScheduler.Drawing
  [Expand]DevExpress.XtraScheduler.Exchange
  [Expand]DevExpress.XtraScheduler.iCalendar
  [Expand]DevExpress.XtraScheduler.iCalendar.Components
  [Expand]DevExpress.XtraScheduler.Localization
  [Expand]DevExpress.XtraScheduler.Native
  [Expand]DevExpress.XtraScheduler.Outlook
  [Expand]DevExpress.XtraScheduler.Outlook.Interop
  [Expand]DevExpress.XtraScheduler.Reporting
  [Expand]DevExpress.XtraScheduler.Services
  [Expand]DevExpress.XtraScheduler.Services.Implementation
  [Expand]DevExpress.XtraScheduler.Tools
  [Expand]DevExpress.XtraScheduler.UI
  [Expand]DevExpress.XtraScheduler.Xml
  [Expand]DevExpress.XtraSpellChecker
  [Expand]DevExpress.XtraSpellChecker.Rules
[Expand]Tools and Utilities
 End-User Documentation
Cross-Platform Core Libraries > DevExpress.XtraScheduler > PersistentObject > CanDelete
View this topic on docs.devexpress.com (Learn more)

PersistentObject.CanDelete Method

Raises the PersistentObjectStorage<T>.ObjectDeleting event to determine whether the object can be deleted.

Namespace:DevExpress.XtraScheduler
Assembly:DevExpress.XtraScheduler.v19.1.Core.dll

Expanded Syntax

Return value

Type: Boolean
true if the persistent object can be deleted; otherwise, false.

Expanded Remarks

If the PersistentObjectStorage<T>.ObjectDeleting is not handled, the CanDelete returns true. If the event is handled, the CanDelete returns false if PersistentObjectCancelEventArgs.Cancel has been set to true within the event handler.

Expanded See Also

PersistentObject Class
PersistentObject Members
DevExpress.XtraScheduler Namespace
Is this topic helpful?​​​​​​​
Copyright (c) 1998-2019 Developer Express Inc. All rights reserved.