# OpcOrderedObjectNode Class

> Reference: Provides an abstract implementation of the IOpcOrderedObjectNode.

<span class="api-meta">abstract · since v2.26</span>

<dl class="api-definition">
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx">Opc.UaFx</a></dd>
<dt>Assembly</dt>
<dd>Opc.UaFx.Advanced.dll</dd>
<dt>Package</dt>
<dd>Opc.UaFx.Advanced v2.59.0</dd>
<dt>Members</dt>
<dd><a href="./members">OpcOrderedObjectNode Members</a></dd>
</dl>

Provides an abstract implementation of the [IOpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcorderedobjectnode/).

## Syntax

<div class="api-signature" data-lang="csharp">

```csharp
public abstract class OpcOrderedObjectNode : OpcObjectNode
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public MustInherit Class OpcOrderedObjectNode
    Inherits OpcObjectNode
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → [OpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnode/) → [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/) → [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/) → **OpcOrderedObjectNode**

## Implements

<ul class="api-implements">
<li><a href="../opc.uafx.iopcnode/">IOpcNode</a></li>
<li><a href="../opc.uafx.iopcnodeinfo/">IOpcNodeInfo</a></li>
<li><a href="../opc.uafx.iopcorderedobjectnode/">IOpcOrderedObjectNode</a></li>
</ul>

## Constructors

| Name | Description |
|---|---|
| [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#opcorderedobjectnode)<span class="api-meta">protected · 8 overloads</span> | Initializes a new instance of the OpcOrderedObjectNode class accessible by the `name` specified. |

## Properties

| Name | Description |
|---|---|
| [DefaultReferenceTypeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#defaultreferencetypeid)<span class="api-meta">protected · override</span> | Gets the default identifier which identifies the type that defines the underlying node reference within this OpcOrderedObjectNode is referenced by its parent node. |
| [NumberInList](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#numberinlist)<span class="api-meta">since v2.27</span> | Gets the position of the [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/) in a list, managed by an instance of the [OpcOrderedObjectListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectlistnode/). |
| [NumberInListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#numberinlistnode)<span class="api-meta">since v2.27</span> | Gets a [OpcPropertyNode&lt;T&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcpropertynode-1/) its value provides the position of the [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/) in a list, managed by an instance of the [OpcOrderedObjectListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectlistnode/). |

Inherits members from [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/members), [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/members), [OpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnode/members).

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.26–v2.59 |