# IOpcServiceResponseHeader Interface

<span class="api-meta">since v2.7</span>

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

Defines an interface which provides the common parameters of the response of a service, as defined by the ResponseHeader of OPC UA.

## Syntax

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

```csharp
public interface IOpcServiceResponseHeader
```

</div>

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

```vbnet
Public Interface IOpcServiceResponseHeader
```

</div>

## Derived types

- [OpcServiceResponseHeader](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcserviceresponseheader/)

## Properties

| Name | Description |
|---|---|
| [Result](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcserviceresponseheader/members#result) | Gets or sets the result of the service. |
| [Timestamp](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcserviceresponseheader/members#timestamp) | Gets or sets the time the response has been sent. |

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.7–v2.59 |