# OpcSubscriptionChangedEventArgs Members

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

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcSubscriptionChangedEventArgs</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>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

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

## Constructors

### OpcSubscriptionChangedEventArgs

Initializes a new instance of the [OpcSubscriptionChangedEventArgs](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcsubscriptionchangedeventargs/) class using the `changes` specified.

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

```csharp
public OpcSubscriptionChangedEventArgs(OpcSubscriptionChanges changes)
```

</div>

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

```vbnet
Public Sub New(changes As OpcSubscriptionChanges)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `changes` | [OpcSubscriptionChanges](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcsubscriptionchanges/) | A combination of the [OpcSubscriptionChanges](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcsubscriptionchanges/) flags which describe the changes of the subscription. |

## Properties

### Changes

Gets the changes of the subscription.

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

```csharp
public OpcSubscriptionChanges Changes { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Changes As OpcSubscriptionChanges
```

</div>

**Property value**

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

A combination of the [OpcSubscriptionChanges](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcsubscriptionchanges/) flags which describe the changes of the subscription.