# IOpcDataTypeBuilder Members

> Reference: Defines a builder of a data type which is defined at runtime (see OpcStruct and OpcEnum), e.g. to provide it by a server using Create.

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

## Properties

### Id

Gets the identifier of the data type.

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

```csharp
OpcNodeId Id { get; }
```

</div>

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

```vbnet
ReadOnly Property Id As OpcNodeId
```

</div>

**Property value**

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

The identifier of the data type, or [Null](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/members#null) if none has been specified.

### Name

Gets the name of the data type.

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

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

</div>

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

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

</div>

**Property value**

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

The name of the data type.

## Methods

### CreateTypeInfo

Creates the type information of the data type using the `context` and the `typeId` specified.

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

```csharp
IOpcDataTypeInfo CreateTypeInfo(OpcContext context, OpcNodeId typeId)
```

</div>

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

```vbnet
Function CreateTypeInfo(
    context As OpcContext,
    typeId As OpcNodeId) As IOpcDataTypeInfo
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `context` | [OpcContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/) | The context used to resolve the data types the data type refers to. |
| `typeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) | The identifier of the data type to create. |

**Returns**

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

The type information of the data type.

**Exceptions**

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