# NoOperation

> The constant value to be returned from HandleUtility.RenderPickingCallback delegates signifying that nothing has been rendered.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor](/engine/6000.7/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
[NoAutoStaticsCleanup]
public static readonly RenderPickingResult NoOperation
```