# OpcNodeTypeMembersAttribute Class

<span class="api-meta">since v2.20</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">OpcNodeTypeMembersAttribute Members</a></dd>
</dl>

Defines additional information like different criterions to use to select the members of a node type which shall be respected and therefore encoded / decoded for the node type on which the attribute is applied.

## Syntax

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

```csharp
public class OpcNodeTypeMembersAttribute : Attribute
```

</div>

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

```vbnet
<AttributeUsage(AttributeTargets.Class, AllowMultiple:=False, Inherited:=True)>
Public Class OpcNodeTypeMembersAttribute
    Inherits Attribute
```

</div>

## Inheritance

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

## Constructors

| Name | Description |
|---|---|
| [OpcNodeTypeMembersAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodetypemembersattribute/members#opcnodetypemembersattribute) | Initializes a new instance of the OpcNodeTypeMembersAttribute class using the `origins` specified. |

## Properties

| Name | Description |
|---|---|
| [Origins](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodetypemembersattribute/members#origins) | Gets the criterions to use to select the appropriate members of a node type to respect whenever an instance of the node type, to which the current OpcNodeTypeMembersAttribute has been applied, is encoded / decoded. |

Inherits members from [Attribute](https://learn.microsoft.com/dotnet/api/system.attribute).

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.20–v2.59 |