public void HideTraverseElement(Document doc) { if (m_allTreeNodeList.Count == 0 || m_allTreeNodeList == null) { return; } foreach (var treenode in m_allTreeNodeList) { Element ele = MtCommon.GetElementById(doc, treenode.Id.ToString()); MtCommon.HideElementTemporary(doc, ele); } m_allTreeNodeList.Clear(); }