UnityEngine.UI.LoopVerticalScrollRect.GetSize C# (CSharp) Method

        protected override float GetSize(RectTransform item)
        {
            float size = contentSpacing;
            if (m_GridLayout != null)
            {
                size += m_GridLayout.cellSize.y;
            }
            else
            {
                size += LayoutUtility.GetPreferredHeight(item);
            }
            return size;
        }