# PropertyCallbackScope(Action<Rect, SerializedProperty>)

> Begin an PropertyCallbackScope.

## Definition

* **Type:** Constructor
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public PropertyCallbackScope(Action<Rect, SerializedProperty> callback)
```

### Parameters

**** (\[Action\<Rect, SerializedProperty>]\(https\://learn.microsoft.com/dotnet/api/system.action)): Callback to be called for each property being rendered and before drawing starts.