# OpcNodeIdCollection Class

> Reference: Represents a collection of OpcNodeId instances.

<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">OpcNodeIdCollection Members</a></dd>
<dt>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

Represents a collection of [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) instances.

## Syntax

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

```csharp
public class OpcNodeIdCollection : Collection<OpcNodeId>
```

</div>

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

```vbnet
Public Class OpcNodeIdCollection
    Inherits Collection(Of OpcNodeId)
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → [Collection](https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.collection-1)&lt;[OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/)&gt; → **OpcNodeIdCollection**

## Implements

<ul class="api-implements">
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.icollection">ICollection</a></li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.icollection-1">ICollection</a>&lt;<a href="../opc.uafx.opcnodeid/">OpcNodeId</a>&gt;</li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.ienumerable">IEnumerable</a></li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a href="../opc.uafx.opcnodeid/">OpcNodeId</a>&gt;</li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.ilist">IList</a></li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1">IList</a>&lt;<a href="../opc.uafx.opcnodeid/">OpcNodeId</a>&gt;</li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ireadonlycollection-1">IReadOnlyCollection</a>&lt;<a href="../opc.uafx.opcnodeid/">OpcNodeId</a>&gt;</li>
<li><a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ireadonlylist-1">IReadOnlyList</a>&lt;<a href="../opc.uafx.opcnodeid/">OpcNodeId</a>&gt;</li>
</ul>

## Constructors

| Name | Description |
|---|---|
| [OpcNodeIdCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidcollection/members#opcnodeidcollection)<span class="api-meta">2 overloads</span> | Initializes a new instance of the OpcNodeIdCollection class. |

## Methods

| Name | Description |
|---|---|
| [ClearItems](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidcollection/members#clearitems)<span class="api-meta">protected · override</span> | Removes all elements from the collection. |
| [InsertItem](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidcollection/members#insertitem)<span class="api-meta">protected · override</span> | Inserts the `item` into the collection at the `index` specified. |
| [RemoveItem](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidcollection/members#removeitem)<span class="api-meta">protected · override</span> | Removes the element at the `index` specified from the collection. |
| [SetItem](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidcollection/members#setitem)<span class="api-meta">protected · override</span> | Replaces the element at the `index` specified with the `item`. |

Inherits members from [Collection&lt;OpcNodeId&gt;](https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.collection-1).

## Applies to

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