# OpcStateMachineNodeExtension Class

> Reference: Provides static (Shared in Visual Basic) extension methods to manage OpcStateMachineNode objects.

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

<dl class="api-definition">
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx.server">Opc.UaFx.Server</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">OpcStateMachineNodeExtension Members</a></dd>
</dl>

Provides static (Shared in Visual Basic) extension methods to manage [OpcStateMachineNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatemachinenode/) objects.

## Syntax

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

```csharp
public static class OpcStateMachineNodeExtension
```

</div>

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

```vbnet
Public Module OpcStateMachineNodeExtension
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → **OpcStateMachineNodeExtension**

## Methods

| Name | Description |
|---|---|
| [ChangeState](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcstatemachinenodeextension/members#changestate)<span class="api-meta">static</span> | Changes the current state of the `stateMachineNode` specified using the further specified `context`. |

## Applies to

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