# OpcOrderedObjectNode Members

> Reference: Provides an abstract implementation of the IOpcOrderedObjectNode.

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcOrderedObjectNode</a></dd>
<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>
</dl>

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).

## Constructors

### OpcOrderedObjectNode

<span class="api-meta">protected · 8 overloads</span>

| Overload | Description |
|---|---|
| [OpcOrderedObjectNode(OpcName)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#opcorderedobjectnode-opc-uafx-opcname)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified. |
| [OpcOrderedObjectNode(OpcName, params OpcInstanceNode\[\])](#opcorderedobjectnode-opc-uafx-opcname-opc-uafx-opcinstancenode-array)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and with the initial child nodes specified by `children`. |
| [OpcOrderedObjectNode(OpcName, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#opcorderedobjectnode-opc-uafx-opcname-opc-uafx-opcnodeid)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and `id` specified. |
| [OpcOrderedObjectNode(OpcName, OpcNodeId, params OpcInstanceNode\[\])](#opcorderedobjectnode-opc-uafx-opcname-opc-uafx-opcnodeid-opc-uafx-opcinstancenode-array)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name`, `id` and with the initial child nodes specified by `children`. |
| [OpcOrderedObjectNode(IOpcNode, OpcName)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#opcorderedobjectnode-opc-uafx-iopcnode-opc-uafx-opcname)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified as a child node of the `parent` node given. |
| [OpcOrderedObjectNode(IOpcNode, OpcName, params OpcInstanceNode\[\])](#opcorderedobjectnode-opc-uafx-iopcnode-opc-uafx-opcname-opc-uafx-opcinstancenode-array)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified as a child node of the `parent` node given and with the initial child nodes specified by `children`. |
| [OpcOrderedObjectNode(IOpcNode, OpcName, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/members#opcorderedobjectnode-opc-uafx-iopcnode-opc-uafx-opcname-opc-uafx-opcnodeid)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and `id` specified as a child node of the `parent` node given. |
| [OpcOrderedObjectNode(IOpcNode, OpcName, OpcNodeId, params OpcInstanceNode\[\])](#opcorderedobjectnode-opc-uafx-iopcnode-opc-uafx-opcname-opc-uafx-opcnodeid-opc-uafx-opcinstancenode-array)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name`, `id` specified as a child node of the `parent` node given and with the initial child nodes specified by `children`. |

#### OpcOrderedObjectNode(OpcName)

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified.

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

```csharp
protected OpcOrderedObjectNode(OpcName name)
```

</div>

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

```vbnet
Protected Sub New(name As OpcName)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |

#### OpcOrderedObjectNode(OpcName, params OpcInstanceNode\[\])

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and with the initial child nodes specified by `children`.

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

```csharp
protected OpcOrderedObjectNode(OpcName name, params OpcInstanceNode[] children)
```

</div>

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

```vbnet
Protected Sub New(name As OpcName, ParamArray children As OpcInstanceNode())
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `children` | params [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/)[] | The initial child nodes of the node. |

#### OpcOrderedObjectNode(OpcName, OpcNodeId)

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and `id` specified.

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

```csharp
protected OpcOrderedObjectNode(OpcName name, OpcNodeId id)
```

</div>

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

```vbnet
Protected Sub New(name As OpcName, id As OpcNodeId)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `id` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) | The [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) through that the new folder node can be identified and accessed. |

#### OpcOrderedObjectNode(OpcName, OpcNodeId, params OpcInstanceNode\[\])

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name`, `id` and with the initial child nodes specified by `children`.

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

```csharp
protected OpcOrderedObjectNode(
    OpcName name,
    OpcNodeId id,
    params OpcInstanceNode[] children)
```

</div>

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

```vbnet
Protected Sub New(
    name As OpcName,
    id As OpcNodeId,
    ParamArray children As OpcInstanceNode())
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `id` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) | The [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) through that the new folder node can be identified and accessed. |
| `children` | params [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/)[] | The initial child nodes of the node. |

#### OpcOrderedObjectNode(IOpcNode, OpcName)

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified as a child node of the `parent` node given.

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

```csharp
protected OpcOrderedObjectNode(IOpcNode parent, OpcName name)
```

</div>

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

```vbnet
Protected Sub New(parent As IOpcNode, name As OpcName)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `parent` | [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) | The [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available. |
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |

#### OpcOrderedObjectNode(IOpcNode, OpcName, params OpcInstanceNode\[\])

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` specified as a child node of the `parent` node given and with the initial child nodes specified by `children`.

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

```csharp
protected OpcOrderedObjectNode(
    IOpcNode parent,
    OpcName name,
    params OpcInstanceNode[] children)
```

</div>

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

```vbnet
Protected Sub New(
    parent As IOpcNode,
    name As OpcName,
    ParamArray children As OpcInstanceNode())
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `parent` | [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) | The [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available. |
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `children` | params [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/)[] | The initial child nodes of the node. |

#### OpcOrderedObjectNode(IOpcNode, OpcName, OpcNodeId)

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name` and `id` specified as a child node of the `parent` node given.

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

```csharp
protected OpcOrderedObjectNode(IOpcNode parent, OpcName name, OpcNodeId id)
```

</div>

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

```vbnet
Protected Sub New(parent As IOpcNode, name As OpcName, id As OpcNodeId)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `parent` | [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) | The [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available. |
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `id` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) | The [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) through that the new folder node can be identified and accessed. |

#### OpcOrderedObjectNode(IOpcNode, OpcName, OpcNodeId, params OpcInstanceNode\[\])

<span class="api-meta">protected</span>

Initializes a new instance of the [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) class accessible by the `name`, `id` specified as a child node of the `parent` node given and with the initial child nodes specified by `children`.

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

```csharp
protected OpcOrderedObjectNode(
    IOpcNode parent,
    OpcName name,
    OpcNodeId id,
    params OpcInstanceNode[] children)
```

</div>

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

```vbnet
Protected Sub New(
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId,
    ParamArray children As OpcInstanceNode())
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `parent` | [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) | The [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available. |
| `name` | [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) | The [OpcName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/) through that the new folder node can be accessed. |
| `id` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) | The [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) through that the new folder node can be identified and accessed. |
| `children` | params [OpcInstanceNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenode/)[] | The initial child nodes of the node. |

## Properties

### 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](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) is referenced by its parent node.

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

```csharp
protected override OpcNodeId DefaultReferenceTypeId { get; }
```

</div>

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

```vbnet
Protected Overrides ReadOnly Property DefaultReferenceTypeId As OpcNodeId
```

</div>

**Property value**

[OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/)

The [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) of the reference wihin this [OpcOrderedObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectnode/) is referenced. These reference defines the typical behaviour of an instance node and its role in the address space regarding its parent. If there exists no specific reference type a null reference (Nothing in Visual Basic).

**Overrides**

[DefaultReferenceTypeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/members#defaultreferencetypeid)

### 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/).

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

```csharp
public int NumberInList { get; }
```

</div>

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

```vbnet
Public ReadOnly Property NumberInList As Integer
```

</div>

**Property value**

[Int32](https://learn.microsoft.com/dotnet/api/system.int32)

The zero-based position of the [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/) if organized in an [OpcOrderedObjectListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectlistnode/); otherwise -1 if the node is not a known child node of a [OpcOrderedObjectListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectlistnode/).

### 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/).

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

```csharp
public OpcPropertyNode<int> NumberInListNode { get; }
```

</div>

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

```vbnet
Public ReadOnly Property NumberInListNode As OpcPropertyNode(Of Integer)
```

</div>

**Property value**

[OpcPropertyNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcpropertynode-1/)&lt;[Int32](https://learn.microsoft.com/dotnet/api/system.int32)&gt;

An instance of the [OpcPropertyNode&lt;T&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcpropertynode-1/) its value indicates the zero-based position in the [OpcOrderedObjectListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcorderedobjectlistnode/) the [OpcObjectNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcobjectnode/) is being managed.

**Implements**

[NumberInListNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcorderedobjectnode/members#numberinlistnode)