# operator !=(NodeReference, NodeReference)

> Compares two NodeReference values for inequality.

## Definition

* **Type:** Operator
* **Namespace:** [Unity.GraphToolkit.Editor.GraphVisualization](/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphvisualization.md)
* **Assembly:** UnityEditor

```csharp
public static bool operator !=(NodeReference left, NodeReference right)
```

### Parameters

**** (\[NodeReference]\(/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphvisualization/nodereference)): The first [NodeReference](/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphvisualization/nodereference.md) to compare.**** (\[NodeReference]\(/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphvisualization/nodereference)): The second [NodeReference](/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphvisualization/nodereference.md) to compare.

### Returns

| Type                                                          | Description                                              |
| ------------------------------------------------------------- | -------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | true if `left` isn't equal to `right`. Otherwise, false. |