# SelectionChanged(IList<TIdentifier>)

> Override the method to get notified of selection changes.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.IMGUI.Controls](/engine/6000.7/script-reference/unityeditor/imgui/controls.md)
* **Assembly:** UnityEditor.CoreModule

## SelectionChanged(IList\<T>)

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

### Parameters

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