XPObject.Oid Property

Gets or set a value which identifies the persistent object.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v23.2.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

[Persistent("OID")]
[Key(AutoGenerate = true)]
public int Oid { get; set; }

VB.NET

<Persistent("OID")>
<Key(AutoGenerate:=True)>
Public Property Oid As Integer

Property Value

Type	Description
Int32	An integer value which identifies the object.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Oid 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#

wpf-data-grid-implement-crud-operations/CS/CodeBehind/XPO/LocalData/MainWindow.xaml.cs#L15

var xpCollection = new DevExpress.Xpo.XPCollection<XPOIssues.Issues.User>(_UnitOfWork);
xpCollection.Sorting.Add(new DevExpress.Xpo.SortProperty(nameof(XPOIssues.Issues.User.Oid), DevExpress.Xpo.DB.SortingDirection.Ascending));
grid.ItemsSource = xpCollection;

how-to-bind-wpf-grid-to-data/CS/CodeBehind/XPO/LocalData/MainWindow.xaml.cs#L17

var xpCollection = new XPCollection<User>(_UnitOfWork);
xpCollection.Sorting.Add(new SortProperty(nameof(User.Oid), DevExpress.Xpo.DB.SortingDirection.Ascending));
grid.ItemsSource = xpCollection;

CriteriaOperatorsCheatSheet/CS/CriteriaOperatorCheatSheet/Tests/Aggregate_Single.cs#L64

//assert
var reqId = uow.FindObject<OrderItem>(new BinaryOperator(nameof(OrderItem.OrderItemName), "Task2-1")).Oid;
Assert.AreEqual(reqId, result3);

XPO_how-to-get-the-maximum-or-minimum-objects-value-from-a-collection-e468/CS/ConsoleApplication1/Program.cs#L24

    CriteriaOperator.Parse("Max(Sequence)"),
    new OperandProperty("Quote.Oid") == q.Oid
)

XPO_how-to-reopen-a-broken-connection-when-using-a-postgresql-database-e3086/CS/Program.cs#L31

    uow.CommitChanges();
    return result.Oid;
}

VB.NET

wpf-data-grid-implement-crud-operations/VB/CodeBehind/XPO/InfiniteAsyncSource/MainWindow.xaml.vb#L55

If e.IsNewItem Then
    _DetachedObjectsHelper.SetKey(e.Row, item.Oid)
End If

XPO_how-to-reopen-a-broken-connection-when-using-a-postgresql-database-e3086/VB/Program.vb#L28

    uow.CommitChanges()
    Return result.Oid
End Using

winforms-scheduler-bind-xpo-multi-resource-appointments/VB/XPO_MultiResource_Example/XPAppointment.vb#L89

For i As Integer = 0 To count - 1
    resourceIds_Renamed.Add(Resources(i).Oid)
Next i