private void DoSelectPrefabHierarchyVieww() { GUILayout.BeginArea(selectPrefabHierarchyViewRect); if (null != curSelectPrefab) { Rect rect = GUILayoutUtility.GetRect(0, 100000, 0, 100000); prefabTreeView = new PrefabTreeView(treeViewState, curSelectPrefab); prefabTreeView.OnGUI(rect); prefabTreeView.ExpandAll(); } else { } GUILayout.EndArea(); }