UnityEditor.TreeViewDragging.DragCleanup C# (CSharp) Method

        public virtual void DragCleanup(bool revertExpanded)
        {
            if (this.m_DropData != null)
            {
                if ((this.m_DropData.expandedArrayBeforeDrag != null) && revertExpanded)
                {
                    this.RestoreExpanded(new List<int>(this.m_DropData.expandedArrayBeforeDrag));
                }
                this.m_DropData = new DropData();
            }
        }