# OpcTypeNode Members

> Reference: Defines the abstract base class of all type nodes.

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcTypeNode</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 [OpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnode/members).

## Properties

### IsAbstract

Gets or sets a value indicating whether the [OpcTypeNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypenode/) is abstract and must be overridden.

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

```csharp
public bool IsAbstract { get; set; }
```

</div>

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

```vbnet
Public Property IsAbstract As Boolean
```

</div>

**Property value**

[Boolean](https://learn.microsoft.com/dotnet/api/system.boolean)

The value true if the [OpcTypeNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypenode/) is abstract; otherwise the value false.

### SuperTypeId

Gets or sets the identifier of the [OpcTypeNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypenode/) which represents the super type of the type represented by this [OpcTypeNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypenode/).

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

```csharp
public OpcNodeId SuperTypeId { get; set; }
```

</div>

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

```vbnet
Public Property SuperTypeId 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 super type node of the type node represented; otherwise a null reference (Nothing in Visual Basic) if there is no super type node.