# OpcResultCollection<TItem, TItemContent, TItemContentList> Members

> Reference: Provides an abstract generic specialisation of the OpcCollection<TItem, TItemContent, TItemContentList> which further restricts the type parameters to define a base for OpcResult types.

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcResultCollection&lt;TItem, TItemContent, TItemContentList&gt;</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>

Inherits members from [OpcCollection&lt;TItem, TItemContent, TItemContentList&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccollection-3/members), [Collection&lt;TItem&gt;](https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.collection-1).

## Constructors

### OpcResultCollection

<span class="api-meta">protected · 2 overloads</span>

| Overload | Description |
|---|---|
| [OpcResultCollection()](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/members#opcresultcollection-noparams)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcResultCollection&lt;TItem, TItemContent, TItemContentList&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/) class. |
| [OpcResultCollection(IList&lt;TItem&gt;)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/members#opcresultcollection-system-collections-generic-ilist-of-t0)<span class="api-meta">protected</span> | Initializes a new instance of the [OpcResultCollection&lt;TItem, TItemContent, TItemContentList&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/) class as a wrapper for the specified `list`. |

#### OpcResultCollection()

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

Initializes a new instance of the [OpcResultCollection&lt;TItem, TItemContent, TItemContentList&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/) class.

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

```csharp
protected OpcResultCollection()
```

</div>

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

```vbnet
Protected Sub New()
```

</div>

#### OpcResultCollection(IList&lt;TItem&gt;)

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

Initializes a new instance of the [OpcResultCollection&lt;TItem, TItemContent, TItemContentList&gt;](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresultcollection-3/) class as a wrapper for the specified `list`.

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

```csharp
protected OpcResultCollection(IList<TItem> list)
```

</div>

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

```vbnet
Protected Sub New(list As IList(Of TItem))
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `list` | [IList](https://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1)&lt;TItem&gt; | The [IList&lt;T&gt;](https://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1) of `TItem` instances to wrap. |

**Exceptions**

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