Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.
For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.
Obsolete 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.protected TreeViewItem rootItem;
Description
The hidden root item of the TreeView (it is never rendered).
It has a depth of -1 whereas the rows of the TreeView will have a depth of 0 or higher. The rootItem can be used for traversing the items created in BuildRoot (if a full tree was created).