[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
[Collapse]eXpressApp Framework
 [Expand]Fundamentals
 [Expand]Getting Started
 [Expand]Concepts
 [Expand]Design-Time Features
 [Expand]Deployment
 [Expand]Task-Based Help
  Frequently Asked Questions (FAQ)
 [Collapse]API Reference
  [Expand]DevExpress.EasyTest.Framework
  [Expand]DevExpress.ExpressApp
  [Expand]DevExpress.ExpressApp.Actions
  [Expand]DevExpress.ExpressApp.AuditTrail
  [Expand]DevExpress.ExpressApp.Chart
  [Expand]DevExpress.ExpressApp.Chart.Web
  [Expand]DevExpress.ExpressApp.Chart.Win
  [Expand]DevExpress.ExpressApp.CloneObject
  [Expand]DevExpress.ExpressApp.ConditionalAppearance
  [Expand]DevExpress.ExpressApp.Dashboards
  [Expand]DevExpress.ExpressApp.Dashboards.Web
  [Expand]DevExpress.ExpressApp.Dashboards.Win
  [Expand]DevExpress.ExpressApp.Data
  [Expand]DevExpress.ExpressApp.DC
  [Expand]DevExpress.ExpressApp.DC.ClassGeneration
  [Expand]DevExpress.ExpressApp.Editors
  [Expand]DevExpress.ExpressApp.EF
  [Expand]DevExpress.ExpressApp.EF.Utils
  [Expand]DevExpress.ExpressApp.FileAttachments.Web
  [Expand]DevExpress.ExpressApp.FileAttachments.Win
  [Expand]DevExpress.ExpressApp.Filtering
  [Expand]DevExpress.ExpressApp.HtmlPropertyEditor.Web
  [Expand]DevExpress.ExpressApp.HtmlPropertyEditor.Win
  [Expand]DevExpress.ExpressApp.Kpi
  [Expand]DevExpress.ExpressApp.Layout
  [Expand]DevExpress.ExpressApp.Maps.Mobile
  [Expand]DevExpress.ExpressApp.Maps.Mobile.Editors
  [Expand]DevExpress.ExpressApp.Maps.Web
  [Expand]DevExpress.ExpressApp.Maps.Web.Helpers
  [Expand]DevExpress.ExpressApp.MiddleTier
  [Expand]DevExpress.ExpressApp.Mobile
  [Expand]DevExpress.ExpressApp.Mobile.Editors
  [Expand]DevExpress.ExpressApp.Mobile.MobileModel
  [Expand]DevExpress.ExpressApp.Mobile.SystemModule
  [Expand]DevExpress.ExpressApp.Mobile.Templates
  [Expand]DevExpress.ExpressApp.Model
  [Expand]DevExpress.ExpressApp.Model.Core
  [Expand]DevExpress.ExpressApp.Model.NodeGenerators
  [Expand]DevExpress.ExpressApp.ModelEditor
  [Expand]DevExpress.ExpressApp.Notifications
  [Expand]DevExpress.ExpressApp.Notifications.Web
  [Expand]DevExpress.ExpressApp.Notifications.Win
  [Expand]DevExpress.ExpressApp.Office.Win
  [Expand]DevExpress.ExpressApp.PivotChart
  [Expand]DevExpress.ExpressApp.PivotChart.Web
  [Expand]DevExpress.ExpressApp.PivotChart.Win
  [Expand]DevExpress.ExpressApp.PivotGrid
  [Expand]DevExpress.ExpressApp.PivotGrid.Web
  [Expand]DevExpress.ExpressApp.PivotGrid.Win
  [Expand]DevExpress.ExpressApp.Reports
  [Expand]DevExpress.ExpressApp.Reports.Web
  [Expand]DevExpress.ExpressApp.Reports.Win
  [Expand]DevExpress.ExpressApp.ReportsV2
  [Expand]DevExpress.ExpressApp.ReportsV2.Mobile
  [Expand]DevExpress.ExpressApp.ReportsV2.Web
  [Expand]DevExpress.ExpressApp.ReportsV2.Win
  [Expand]DevExpress.ExpressApp.Scheduler
  [Expand]DevExpress.ExpressApp.Scheduler.Web
  [Expand]DevExpress.ExpressApp.Scheduler.Win
  [Expand]DevExpress.ExpressApp.ScriptRecorder
  [Expand]DevExpress.ExpressApp.ScriptRecorder.Web
  [Expand]DevExpress.ExpressApp.ScriptRecorder.Win
  [Expand]DevExpress.ExpressApp.Security
  [Expand]DevExpress.ExpressApp.Security.Adapters
  [Expand]DevExpress.ExpressApp.Security.ClientServer.Wcf
  [Expand]DevExpress.ExpressApp.Security.EF.Adapters
  [Expand]DevExpress.ExpressApp.Security.Strategy
  [Expand]DevExpress.ExpressApp.Security.Xpo.Adapters
  [Expand]DevExpress.ExpressApp.StateMachine
  [Expand]DevExpress.ExpressApp.SystemModule
  [Expand]DevExpress.ExpressApp.Templates
  [Expand]DevExpress.ExpressApp.Templates.ActionContainers
  [Expand]DevExpress.ExpressApp.TreeListEditors
  [Expand]DevExpress.ExpressApp.TreeListEditors.Web
  [Expand]DevExpress.ExpressApp.TreeListEditors.Win
  [Expand]DevExpress.ExpressApp.Updating
  [Expand]DevExpress.ExpressApp.Utils
  [Expand]DevExpress.ExpressApp.Validation
  [Expand]DevExpress.ExpressApp.Validation.Web
  [Expand]DevExpress.ExpressApp.Validation.Win
  [Expand]DevExpress.ExpressApp.ViewVariantsModule
  [Expand]DevExpress.ExpressApp.Web
  [Expand]DevExpress.ExpressApp.Web.Controls
  [Expand]DevExpress.ExpressApp.Web.Editors
  [Expand]DevExpress.ExpressApp.Web.Editors.ASPx
  [Expand]DevExpress.ExpressApp.Web.SystemModule
  [Expand]DevExpress.ExpressApp.Web.Templates
  [Expand]DevExpress.ExpressApp.Web.Utils
  [Expand]DevExpress.ExpressApp.Win
  [Expand]DevExpress.ExpressApp.Win.Core
  [Expand]DevExpress.ExpressApp.Win.Editors
  [Expand]DevExpress.ExpressApp.Win.Model
  [Expand]DevExpress.ExpressApp.Win.SystemModule
  [Expand]DevExpress.ExpressApp.Win.Templates
  [Expand]DevExpress.ExpressApp.Win.Templates.Navigation
  [Expand]DevExpress.ExpressApp.Win.Utils
  [Expand]DevExpress.ExpressApp.Workflow
  [Expand]DevExpress.ExpressApp.Workflow.Win
  [Collapse]DevExpress.ExpressApp.Xpo
   [Expand]CalculatedPersistentAliasAttribute Class
    XPInstantFeedbackSourceMappingMode Enumeration
   [Collapse]XPObjectSpace Class
     XPObjectSpace Members
    [Expand]XPObjectSpace Constructor
    [Expand]XPObjectSpace Properties
    [Collapse]XPObjectSpace Methods
      ApplyCriteria Method
      ApplyFilter Method
      CanApplyCriteria Method
      CanApplyFilter Method
      CanInstantiate Method
      CombineCriteria Method
      CommitChangesAsync Method
      Contains Method
      CreateInstantFeedbackCollection Method
      CreateNestedObjectSpace Method
      CreateParseCriteriaScope Method
      CreateServerCollection Method
      CreateSortingCollection Method
      Dispose Method
      EnableObjectDeletionOnRemove Method
      Evaluate Method
     [Expand]FindObject Method
      FindObjectSpaceByObject Method
      GetCollectionObjectType Method
      GetCollectionSorting Method
      GetCriteria Method
      GetDisplayableProperties Method
      GetEvaluatorContextDescriptor Method
      GetFilter Method
      GetIntermediateObjectReferences Method
     [Expand]GetKeyValue Method
     [Expand]GetKeyValueAsString Method
      GetListServer Method
      GetObject Method
      GetObjectByKey Method
      GetObjectKey Method
      GetObjectsQuery<T> Method
      GetObjectsToDelete Method
      GetObjectsToSave Method
      GetTopReturnedObjectsCount Method
      IsCollectionLoaded Method
      IsDeletedObject Method
      IsDeletionDeferredType Method
      IsDisposedObject Method
      IsIntermediateObject Method
      IsNewObject Method
      IsObjectDeletionOnRemoveEnabled Method
      IsObjectToDelete Method
      IsObjectToSave Method
      ParseCriteria Method
      RaiseObjectPropertyChanged Method
      ReloadCollection Method
      ReloadObject Method
      RemoveFromModifiedObjects Method
      SetCollectionSorting Method
      SetDisplayableProperties Method
      SetPrefetchPropertyNames Method
      SetTopReturnedObjectsCount Method
      TryGetObjectHandle Method
   [Expand]XPObjectSpaceProvider Class
   [Expand]XpoDataView Class
   [Expand]XpoDataViewRecord Class
   [Expand]XpoTypesInfoHelper Class
  [Expand]DevExpress.ExpressApp.Xpo.Utils
  [Expand]DevExpress.Persistent.Base
  [Expand]DevExpress.Persistent.Base.General
  [Expand]DevExpress.Persistent.Base.ReportsV2
  [Expand]DevExpress.Persistent.Base.Security
  [Expand]DevExpress.Persistent.BaseImpl
  [Expand]DevExpress.Persistent.BaseImpl.EF
  [Expand]DevExpress.Persistent.BaseImpl.EF.PermissionPolicy
  [Expand]DevExpress.Persistent.BaseImpl.PermissionPolicy
  [Expand]DevExpress.Persistent.Validation
[Expand]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

XPObjectSpace.FindObjectSpaceByObject Method

Determines the Object Space used to load and save a specified persistent object.

Namespace:DevExpress.ExpressApp.Xpo
Assembly:DevExpress.ExpressApp.Xpo.v19.1.dll

Expanded Syntax

Parameters

obj
Type: Object
The object whose Object Space must be determined.

Return value

Type: IObjectSpace
An IObjectSpace object which represents the Object Space used to load and save the specified persistent object.

Expanded Remarks

This method is outdated. Instead, create a new Object Space or implement the IObjectSpaceLink interface in your class.

The FindObjectSpaceByObject method returns null (Nothing in VB.NET) if the object specified by the obj parameter belongs to an XPO Session not managed by the ObjectSpace class. This can be the case, for example, if you create an object using a separate Session as follows.

Note that you can access certain Object Spaces used internally by XAF via the FindObjectSpaceByObject method. Such Object Spaces should not be used in your applications. One example of such an Object Space is the Object Space used by the Security System.

Using such code in your applications may lead to undesired side-effects. So, instead of using an internal Object Space, create a new Object Space and perform the required actions with it:

Expanded See Also

Is this topic helpful?​​​​​​​