# PanelRenderer.VersionedUIReloadCallback

> Callback type for UI reload events.

## Definition

* **Type:** Delegate
* **Namespace:** [UnityEngine.UIElements](/engine/6000.7/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public delegate void PanelRenderer.VersionedUIReloadCallback(PanelRenderer panelRenderer, VisualElement rootElement, int version)
```