# SelectionClick(TreeViewItem, bool)

> Use this method in TreeView.RowGUI to peform the logic of a mouse click.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.IMGUI.Controls](/engine/6000.5/script-reference/unityeditor/imgui/controls.md)
* **Assembly:** UnityEditor.CoreModule

> **Warning:**
>
> **Removed.** TreeView is now deprecated. You can likely now use TreeView\\\<int\\> instead and not think more about it. But if you were using that identifier to store InstanceID data, you should instead opt to upgrade your TreeViews to use TreeView\\\<InstanceID\\> to get the proper typing.

```csharp
protected void SelectionClick(TreeViewItem item, bool keepMultiSelection)
```

### Parameters

**** (\[TreeViewItem]\(/engine/6000.5/script-reference/unityeditor/imgui/controls/treeviewitem)): TreeViewItem clicked.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): If true then keeps the multiselection when clicking on a item already part of the selection. If false then clears the selection before selecting the item clicked. For left button clicks this is usually false. For context clicks it is usually true so a context opereration can operate on the multiselection.

### Remarks

This method handles multi-selection when using modifier keys together with the mouse click. It is called automatically if the event is not used by the [TreeView.RowGUI](/engine/6000.5/script-reference/unityeditor/imgui/controls/treeview/rowgui.md) method.