# OpcNodeIdArrayVariableNode Class

<span class="api-meta">since v2.54</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">OpcNodeIdArrayVariableNode Members</a></dd>
</dl>

Defines a variable node for node identifier array variables.

## Syntax

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

```csharp
public class OpcNodeIdArrayVariableNode : OpcDataVariableNode
```

</div>

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

```vbnet
Public Class OpcNodeIdArrayVariableNode
    Inherits OpcDataVariableNode
```

</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/) → [OpcVariableNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvariablenode/) → [OpcDataVariableNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatavariablenode/) → **OpcNodeIdArrayVariableNode**

## 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.iopcvariablenodeinfo/">IOpcVariableNodeInfo</a></li>
</ul>

## Constructors

| Name | Description |
|---|---|
| [OpcNodeIdArrayVariableNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#opcnodeidarrayvariablenode)<span class="api-meta">10 overloads</span> | Initializes a new instance of the OpcNodeIdArrayVariableNode class accessible by the `name` specified. |

## Properties

| Name | Description |
|---|---|
| [ReadNodeIdVariableValueCallback](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#readnodeidvariablevaluecallback) | Gets or sets a callback used to read the node identifier array variable value. |
| [Value](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#value) | Gets or sets the value of the variable node. |
| [WriteNodeIdArrayVariableValueCallback](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#writenodeidarrayvariablevaluecallback) | Gets or sets a callback used to write the node identifier array variable value. |

## Methods

| Name | Description |
|---|---|
| [ReadNodeIdArrayValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#readnodeidarrayvalue) | Reads the node identifier array value of the variable node. |
| [ReadNodeIdArrayVariableValueCore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#readnodeidarrayvariablevaluecore)<span class="api-meta">protected · virtual</span> | Reads the node identifier array value of the variable node using the `context` and `value` information specified. |
| [ReadVariableValueCore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#readvariablevaluecore)<span class="api-meta">protected · override</span> | Reads the value of the variable node using the `context` and `value` information specified. |
| [WriteNodeIdArrayVariableValueCore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#writenodeidarrayvariablevaluecore)<span class="api-meta">protected · virtual</span> | Writes the node identifier array value of the variable node using the `context` and `value` information specified. |
| [WriteTextValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#writetextvalue) | Writes the value of the variable node specified by `value`. |
| [WriteVariableValueCore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidarrayvariablenode/members#writevariablevaluecore)<span class="api-meta">protected · override</span> | Writes the value of the variable node using the `context` and `value` information specified. |

Inherits members from [OpcDataVariableNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatavariablenode/members), [OpcVariableNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvariablenode/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 | v2.54–v2.59 |