BaseObject.ID Property

The key property for the BaseObject class.

Namespace: DevExpress.Persistent.BaseImpl.EF

Assembly: DevExpress.Persistent.BaseImpl.EFCore.v25.2.dll

NuGet Package: DevExpress.Persistent.BaseImpl.EFCore

Declaration

C#

[Key]
[VisibleInDetailView(false)]
[VisibleInListView(false)]
[VisibleInLookupListView(false)]
public virtual Guid ID { get; set; }

VB.NET

<Key>
<VisibleInListView(False)>
<VisibleInDetailView(False)>
<VisibleInLookupListView(False)>
Public Overridable Property ID As Guid

Property Value

Type
Guid

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ID property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-custom-logon-parameters/CS/EF/EFCoreCustomLogonAll.Module/Authentication/LogonDataProviders/BlazorLogonDataProvider.cs#L17

foreach(var company in nonSecuredObjectSpace.GetObjects<Company>()) {
    companies.Add(new CompanyDTO() { ID = company.ID, Name = company.Name, LogonDataProvider = this });
}

xaf-how-to-create-custom-event-and-resource-classes-for-scheduler/CS/EFCore/CustomEventsAndResources.Module/BusinessObjects/ApplicationUser.cs#L47

[VisibleInListView(false), VisibleInDetailView(false), VisibleInLookupListView(false)]
object IResource.Id => base.ID;
[NotMapped]

connect-winforms-grid-to-backend-using-middletier-server/CS/DataModel.Shared/BusinessObjects/Employee.cs#L30

if(this.Department != null)
    contextObj.Department = dbContext.Departments.First(n => n.ID == this.Department.ID);
else

XAF_logon-form-manage-users-register-a-new-user-restore-a-password/CS/EFCore/DXApplication1.Module/DatabaseUpdate/Updater.cs#L88

defaultRole.AddObjectPermissionFromLambda<ApplicationUser>(SecurityOperations.Read, cm => cm.ID == (Guid)CurrentUserIdOperator.CurrentUserId(), SecurityPermissionState.Allow);
defaultRole.AddNavigationPermission(@"Application/NavigationItems/Items/Default/Items/MyDetails", SecurityPermissionState.Allow);

XAF_how-to-connect-different-data-models-to-several-databases-within-a-single-application/CS/EFCore/CommonModule/DatabaseUpdate/Updater.cs#L78

defaultRole.AddObjectPermissionFromLambda<ApplicationUser>(SecurityOperations.Read, cm => cm.ID == (Guid)CurrentUserIdOperator.CurrentUserId(), SecurityPermissionState.Allow);
defaultRole.AddNavigationPermission(@"Application/NavigationItems/Items/Default/Items/MyDetails", SecurityPermissionState.Allow);

VB.NET

connect-winforms-grid-to-backend-using-middletier-server/VB/DataModel.Shared/BusinessObjects/Employee.vb#L34

If Department IsNot Nothing Then
    contextObj.Department = dbContext.Departments.First(Function(n) n.ID = Department.ID)
Else