private Accordion InitAccordionMenu()
        {
            Accordion accordionMenu = new Accordion();
            accordionMenu.ID = "accordionMenu";
            accordionMenu.EnableFill = true;
            accordionMenu.ShowBorder = false;
            accordionMenu.ShowHeader = false;
            Region2.Items.Add(accordionMenu);


            XmlDocument xmlDoc = XmlDataSource1.GetXmlDocument();
            XmlNodeList xmlNodes = xmlDoc.SelectNodes("/Tree/TreeNode");
            foreach (XmlNode xmlNode in xmlNodes)
            {
                if (xmlNode.HasChildNodes)
                {
                    AccordionPane accordionPane = new AccordionPane();
                    accordionPane.Title = xmlNode.Attributes["Text"].Value;
                    accordionPane.Layout = Layout.Fit;
                    accordionPane.ShowBorder = false;
                    accordionPane.BodyPadding = "2px 0 0 0";
                    accordionMenu.Items.Add(accordionPane);

                    Tree innerTree = new Tree();
                    innerTree.EnableArrows = true;
                    innerTree.ShowBorder = false;
                    innerTree.ShowHeader = false;
                    innerTree.EnableIcons = false;
                    innerTree.AutoScroll = true;
                    accordionPane.Items.Add(innerTree);

                    XmlDocument innerXmlDoc = new XmlDocument();
                    innerXmlDoc.LoadXml(String.Format("<?xml version=\"1.0\" encoding=\"utf-8\" ?><Tree>{0}</Tree>", xmlNode.InnerXml));

                    // 绑定AccordionPane内部的树控件
                    innerTree.DataSource = innerXmlDoc;
                    innerTree.DataBind();

                    // 重新设置每个节点的图标
                    ResolveTreeNode(innerTree.Nodes);
                }
            }

            return accordionMenu;
        }
 public AccordionLinkCollection(AccordionPane panel)
 {
     _panel = panel;
 }