# OpcAttributeWriteAccess Enum

<dl class="api-definition">
<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>

Defines which attributes are writable.

## Syntax

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

```csharp
public enum OpcAttributeWriteAccess : uint
```

</div>

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

```vbnet
<Flags>
Public Enum OpcAttributeWriteAccess As UInteger
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → [ValueType](https://learn.microsoft.com/dotnet/api/system.valuetype) → [Enum](https://learn.microsoft.com/dotnet/api/system.enum) → **OpcAttributeWriteAccess**

## Fields

| Name | Value | Description |
|---|---|---|
| <a id="accesslevel"></a>`AccessLevel` | `1` | The [AccessLevel](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#accesslevel) is writable. |
| <a id="arraydimensions"></a>`ArrayDimensions` | `2` | The [ArrayDimensions](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#arraydimensions) is writable. |
| <a id="browsename"></a>`BrowseName` | `4` | The [BrowseName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#browsename) is writable. |
| <a id="containsnoloops"></a>`ContainsNoLoops` | `8` | The [ContainsNoLoops](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#containsnoloops) is writable. |
| <a id="datatype"></a>`DataType` | `16` | The [DataType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#datatype) is writable. |
| <a id="description"></a>`Description` | `32` | The [Description](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#description) is writable. |
| <a id="displayname"></a>`DisplayName` | `64` | The [DisplayName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#displayname) is writable. |
| <a id="eventnotifier"></a>`EventNotifier` | `128` | The [EventNotifier](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#eventnotifier) is writable. |
| <a id="executable"></a>`Executable` | `256` | The [Executable](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#executable) is writable. |
| <a id="inversename"></a>`InverseName` | `1024` | The [InverseName](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#inversename) is writable. |
| <a id="isabstract"></a>`IsAbstract` | `2048` | The [IsAbstract](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#isabstract) is writable. |
| <a id="ishistorizing"></a>`IsHistorizing`<span class="api-meta">since v2.8</span> | `512` | The [IsHistorizing](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#ishistorizing) is writable. |
| <a id="minimumsamplinginterval"></a>`MinimumSamplingInterval` | `4096` | The [MinimumSamplingInterval](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#minimumsamplinginterval) is writable. |
| <a id="nodecategory"></a>`NodeCategory`<span class="api-meta">since v2.8</span> | `8192` | The [NodeCategory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#nodecategory) is writable. |
| <a id="nodeid"></a>`NodeId` | `16384` | The [NodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#nodeid) is writable. |
| <a id="none"></a>`None` | `0` | None of the attributes offered are writable. |
| <a id="symmetric"></a>`Symmetric` | `32768` | The [Symmetric](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#symmetric) is writable. |
| <a id="useraccesslevel"></a>`UserAccessLevel` | `65536` | The [UserAccessLevel](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#useraccesslevel) is writable. |
| <a id="userexecutable"></a>`UserExecutable` | `131072` | The [UserExecutable](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#userexecutable) is writable. |
| <a id="userwriteaccess"></a>`UserWriteAccess` | `262144` | The [UserWriteAccess](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#userwriteaccess) is writable. |
| <a id="valueforvariabletype"></a>`ValueForVariableType` | `2097152` | The [Value](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#value) is writable. |
| <a id="valuerank"></a>`ValueRank` | `524288` | The [ValueRank](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#valuerank) is writable. |
| <a id="writeaccess"></a>`WriteAccess` | `1048576` | The [WriteAccess](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattribute/#writeaccess) is writable. |

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.5–v2.59 |