# itemsAdded

> Raised when an item is added to the _itemsSource.

## Definition

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

```csharp
public event Action<IEnumerable<int>> itemsAdded
```