# OpcClient.NodeSet Property

> Reference: Gets or sets the OpcNodeSet which is offered by the server the client is operating on.

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

<span class="api-meta">since v2.8</span>

Gets or sets the [OpcNodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeset/) which is offered by the server the client is operating on. The [OpcClient](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/) uses the information in the node set to discover nodes, references and types "offline" (without the need to frequently query the server for the necessary information).

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

```csharp
public OpcNodeSet NodeSet { get; set; }
```

</div>

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

```vbnet
Public Property NodeSet As OpcNodeSet
```

</div>

**Property value**

[OpcNodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeset/)

An instance of the [OpcNodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeset/) class which offers information about the nodes, references and types declared and used by the server the client is operating on. If specified the client can reduce the amount of data requests and performs much faster. In case there is no [OpcNodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeset/) specified a null reference (Nothing in Visual Basic).