# OpcEventDataSetItem Members

> Reference: Represents an event of a monitored item reported by a notification, as defined by the EventFieldList of OPC UA.

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

## Properties

### ClientID

<span class="api-meta">since v2.11</span>

Gets the client-assigned identifier of the monitored item which reported the event.

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

```csharp
public long ClientID { get; }
```

</div>

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

```vbnet
Public ReadOnly Property ClientID As Long
```

</div>

**Property value**

[Int64](https://learn.microsoft.com/dotnet/api/system.int64)

The [ClientID](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcmonitoreditem/members#clientid) of the monitored item.

### Fields

Gets the values of the fields of the event.

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

```csharp
public VariantCollection Fields { get; }
```

</div>

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

```vbnet
<CLSCompliant(False)>
Public ReadOnly Property Fields As VariantCollection
```

</div>

**Property value**

<abbr title="OPC Foundation stack type, not documented here: Opc.Ua.VariantCollection">VariantCollection</abbr>

The values of the fields of the event in the order of the select clauses of the [OpcEventFilter](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventfilter/) of the monitored item (see [SelectClause](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventfilter/members#selectclause)).

**Implements**

[Fields](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopceventfieldset/members#fields)

### Notification

<span class="api-meta">override</span>

Gets the notification which contains the event.

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

```csharp
public override OpcNotification Notification { get; }
```

</div>

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

```vbnet
Public Overrides Property Notification As OpcNotification
```

</div>

**Property value**

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

The [OpcNotification](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnotification/) which contains the event.

**Overrides**

[Notification](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnotificationdatasetitem/members#notification)