# OpcRequestProcessingEventArgs Members

> Reference: Provides the event data for the RequestProcessing event.

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcRequestProcessingEventArgs</a></dd>
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx.server">Opc.UaFx.Server</a></dd>
<dt>Assembly</dt>
<dd>Opc.UaFx.Advanced.dll</dd>
<dt>Package</dt>
<dd>Opc.UaFx.Advanced v2.59.0</dd>
</dl>

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

## Constructors

### OpcRequestProcessingEventArgs

Initializes a new instance of the [OpcRequestProcessingEventArgs](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcrequestprocessingeventargs/) class using the `context` and `request` specified.

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

```csharp
public OpcRequestProcessingEventArgs(
    OpcContext context,
    IOpcServiceRequest request)
```

</div>

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

```vbnet
Public Sub New(context As OpcContext, request As IOpcServiceRequest)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `context` | [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/) | The [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/) in which the request is processed. |
| `request` | [IOpcServiceRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequest/) | The [IOpcServiceRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequest/) to process. |

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentNullException](https://learn.microsoft.com/dotnet/api/system.argumentnullexception) | The `context` or `request` is a null reference (Nothing in Visual Basic). |

## Properties

### Context

Gets the context in which the request is processed.

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

```csharp
public OpcContext Context { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Context As OpcContext
```

</div>

**Property value**

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

The [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/) of the processing.

### Request

Gets the request to process.

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

```csharp
public IOpcServiceRequest Request { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Request As IOpcServiceRequest
```

</div>

**Property value**

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

The [IOpcServiceRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequest/) received by the server.