# OpcReadAttributeValueContext<T> Class

<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>
</dl>

Provides node sensitive information and services about the system which belong to the current situation (process, thread, session, node, etc.) used for reading the value of a node attribute.

## Syntax

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

```csharp
public class OpcReadAttributeValueContext<T> : OpcNodeContext<T>
    where T : IOpcNode
```

</div>

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

```vbnet
Public Class OpcReadAttributeValueContext(Of T As IOpcNode)
    Inherits OpcNodeContext(Of T)
```

</div>

## Type parameters

| Name | Description |
|---|---|
| `T` | The type of [IOpcNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnode/) to reference. |

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/) → [OpcNodeContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodecontext-1/)&lt;T&gt; → **OpcReadAttributeValueContext&lt;T&gt;**

## Implements

<ul class="api-implements">
<li><a href="../opc.uafx.iopcnamespaceresolver/">IOpcNamespaceResolver</a></li>
</ul>

## Derived types

- [OpcReadAttributeValueContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreadattributevaluecontext/)
- [OpcReadVariableValueContext&lt;T&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreadvariablevaluecontext-1/)

Inherits members from [OpcNodeContext&lt;T&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodecontext-1/members), [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members).

## Applies to

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