# OpcReferenceDescription Members

> Reference: Represents the description of a reference to a node, as provided when browsing (see Reference).

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcReferenceDescription</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

### Category

Gets the node class of the target node of the reference.

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

```csharp
public OpcNodeCategory Category { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Category As OpcNodeCategory
```

</div>

**Property value**

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

One of the members defined by the [OpcNodeCategory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodecategory/) enumeration.

### Direction

Gets the direction of the reference.

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

```csharp
public OpcReferenceDirection Direction { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Direction As OpcReferenceDirection
```

</div>

**Property value**

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

[ParentToChild](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreferencedirection/#parenttochild) for a forward reference; otherwise [ChildToParent](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreferencedirection/#childtoparent).

### DisplayName

Gets the display name of the target node of the reference.

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

```csharp
public OpcText DisplayName { get; }
```

</div>

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

```vbnet
Public ReadOnly Property DisplayName As OpcText
```

</div>

**Property value**

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

The display name of the target node.

### IsUnfiltered

Gets a value indicating whether the filter of the browse operation has not been applied to the reference.

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

```csharp
public bool IsUnfiltered { get; }
```

</div>

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

```vbnet
Public ReadOnly Property IsUnfiltered As Boolean
```

</div>

**Property value**

[Boolean](https://learn.microsoft.com/dotnet/api/system.boolean)

The value true if the filter has not been applied to the reference; otherwise the value false.

**Remarks**

The value is not transferred by OPC UA; for a reference received from a server it is always false.

### Name

Gets the browse name of the target node of the reference.

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

```csharp
public OpcName Name { get; }
```

</div>

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

```vbnet
Public ReadOnly Property Name As OpcName
```

</div>

**Property value**

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

The browse name of the target node or [Null](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcname/members#null) if it is not known.

### NodeId

Gets the identifier of the target node of the reference.

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

```csharp
public OpcNodeId NodeId { get; }
```

</div>

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

```vbnet
Public ReadOnly Property NodeId As OpcNodeId
```

</div>

**Property value**

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

The identifier of the target node.

### ReferenceType

Gets the type of the reference.

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

```csharp
public OpcReferenceType? ReferenceType { get; }
```

</div>

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

```vbnet
Public ReadOnly Property ReferenceType As OpcReferenceType?
```

</div>

**Property value**

[Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[OpcReferenceType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreferencetype/)&gt;

One of the members defined by the [OpcReferenceType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreferencetype/) enumeration, or a null reference (Nothing in Visual Basic) if [ReferenceTypeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreferencedescription/members#referencetypeid) does not identify one of them.

### ReferenceTypeId

Gets the identifier of the type of the reference.

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

```csharp
public OpcNodeId ReferenceTypeId { get; }
```

</div>

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

```vbnet
Public ReadOnly Property ReferenceTypeId As OpcNodeId
```

</div>

**Property value**

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

The identifier of the reference type.

### TypeDefinitionId

Gets the identifier of the type definition of the target node of the reference.

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

```csharp
public OpcNodeId TypeDefinitionId { get; }
```

</div>

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

```vbnet
Public ReadOnly Property TypeDefinitionId As OpcNodeId
```

</div>

**Property value**

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

The identifier of the type definition of the target node.