# OpcNodeAttributeServiceCommand Class

> Reference: Provides an abstract base class for node attribute orientated OPC UA services which at least require the OpcNodeId of a specific node and one of the members defined by the OpcAttribute enumeration of the node attribute to operate on.

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

<dl class="api-definition">
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx.services">Opc.UaFx.Services</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">OpcNodeAttributeServiceCommand Members</a></dd>
<dt>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

Provides an abstract base class for node attribute orientated OPC UA services which at least require the [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) of a specific node and one of the members defined by the [OpcAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/) enumeration of the node attribute to operate on.

## Syntax

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

```csharp
public abstract class OpcNodeAttributeServiceCommand : OpcNodeServiceCommand
```

</div>

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

```vbnet
Public MustInherit Class OpcNodeAttributeServiceCommand
    Inherits OpcNodeServiceCommand
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → [OpcServiceCommand](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcservicecommand/) → [OpcNodeServiceCommand](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcnodeservicecommand/) → **OpcNodeAttributeServiceCommand**

## Derived types

- [OpcSubscribeNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcsubscribenode/)
- [OpcReadNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreadnode/)
- [OpcTranslatePath](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctranslatepath/)
- [OpcWriteNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcwritenode/)

## Constructors

| Name | Description |
|---|---|
| [OpcNodeAttributeServiceCommand](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcnodeattributeservicecommand/members#opcnodeattributeservicecommand)<span class="api-meta">protected · 22 overloads</span> | Initializes a new instance of the OpcNodeAttributeServiceCommand class using the `nodeId` specified to operate on the [Value](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#value) attribute. |

## Properties

| Name | Description |
|---|---|
| [Attribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcnodeattributeservicecommand/members#attribute) | Gets the [OpcAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/) used to setup this command and which is used by the node attribute orientated service to operate on the node identified by the [NodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcnodeservicecommand/members#nodeid). |

Inherits members from [OpcNodeServiceCommand](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcnodeservicecommand/members), [OpcServiceCommand](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcservicecommand/members).

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.5–v2.59 |