# PanelRenderer.UIReloadCallback

> Callback type for UI reload events.

## Definition

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

> **Warning:**
>
> **Deprecated.** This callback type is deprecated. Use VersionedUIReloadCallback instead, which provides a version number so the callback can skip redundant work when the UI has not actually changed.

```csharp
public delegate void PanelRenderer.UIReloadCallback(PanelRenderer panelRenderer, VisualElement rootElement)
```