# OpcNodeIdComparison Enum

> Reference: Specifies in which ways OpcNodeId objects are to be compared using either Equals or Equals.

<span class="api-meta">since v2.18</span>

<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>

Specifies in which ways [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) objects are to be compared using either [Equals](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/members#equals-opc-uafx-opcnodeid-opc-uafx-opcnodeidcomparison) or [Equals](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/members#equals-opc-uafx-opcnodeid-opc-uafx-opcnodeid-opc-uafx-opcnodeidcomparison).

## Syntax

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

```csharp
public enum OpcNodeIdComparison
```

</div>

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

```vbnet
Public Enum OpcNodeIdComparison
```

</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) → **OpcNodeIdComparison**

## Fields

| Name | Value | Description |
|---|---|---|
| <a id="default"></a>`Default` | `0` | Compare node identifiers and their namespaces case-sensitive. |
| <a id="ignorecase"></a>`IgnoreCase` | `1` | Compare node identifiers and their namespaces ignoring the case of them. |
| <a id="ignorenamespace"></a>`IgnoreNamespace` | `2` | Compare only node identifiers case-sensitive. |
| <a id="ignorenamespaceignorecase"></a>`IgnoreNamespaceIgnoreCase` | `3` | Compare only node identifiers ignoring the case of them. |
| <a id="ignorenamespaceindex"></a>`IgnoreNamespaceIndex` | `4` | Compare node identifiers and namespace URIs case-sensitive. |
| <a id="ignorenamespaceindexignorecase"></a>`IgnoreNamespaceIndexIgnoreCase` | `5` | Compare node identifiers and namespace URIs ignoring the case of them. |
| <a id="ignorenamespaceuri"></a>`IgnoreNamespaceUri` | `6` | Compare node identifiers and namespace indexes except their URI case-sensitive. |
| <a id="ignorenamespaceuriignorecase"></a>`IgnoreNamespaceUriIgnoreCase` | `7` | Compare node identifiers and namespace indexes except their URI ignoring the case of them. |

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.18–v2.59 |