# SelectionChanged(IList<int>)

> Override the method to get notified of selection changes.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.IMGUI.Controls](/engine/6000.0/script-reference/unityeditor/imgui/controls.md)
* **Assembly:** UnityEditor

```csharp
protected virtual void SelectionChanged(IList<int> selectedIds)
```

### Parameters

**** (\[IList\<int>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1)): TreeViewItem IDs.