epoint:TreeView

Epoint.Web.UI.WebControls2X.EpointTreeNode 

思路：就是使用递归

RootNodeText 根节点名称
RootNodeUrl 根节点路径
ShowRootNode 是否显示根节点

OnTreeNodePopulate 动态添加子节点事件 如果节点的表明node.PopulateOnDemand = 

true;那么这是一个动态添加的节点

一层节点

<epoint:TreeView ID="TreeView1" Target="main1" SearchAtClient="false" runat="server" ShowRootNode="true" RootNodeText="所有商品" RootNodeUrl="Record_List.aspx">
    </epoint:TreeView>


      protected void Page_Load(object sender, EventArgs e)
        {

            this.CurrentLeftPosition = "选择商品";
            this.CurrentRightPosition = "商品列表";
            this.CurrentPosition = "商品管理";
            if (!Page.IsPostBack)
                BindTree();
        }
        protected void BindTree()
        {
           
            DataView dvCommunityInfo = new DB_Commodity().Select();
            Epoint.Web.UI.WebControls2X.EpointTreeNode node;
            for (int i = 0; i < dvCommunityInfo.Count; i++)
            {
                node = new EpointTreeNode();
                node.Text = dvCommunityInfo[i]["Name"].ToString();
                node.Value = dvCommunityInfo[i]["RowGuid"].ToString(); 
                node.NavigateUrl = "Record_List.aspx?CommidityGuid=" + node.Value;
                TreeView1.Nodes.Add(node);
            }
        }　　　　

两层节点

public partial class XMTree : BaseContentPage_UsingMasterWithTree
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                this.CurrentLeftPosition = "项目信息";
                this.CurrentRightPosition = "项目信息";
                this.CurrentPosition = "项目信息";
                BindXMTreeData();
            }
        }
        public void BindXMTreeData()
        {
            TreeView1.RootNodeText = "各类型项目";  //获取根节点文本 
            AddTopNodes();
        }

        private void AddTopNodes()
        {
            EpointTreeNode node;
            string sqlGCValue = string.Format(@"select ItemValue,ItemText from VIEW_CodeMain_CodeItems where CodeName='{0}'", "项目库工程类型");
            DataView dv = Epoint.MisBizLogic2.DB.ExecuteDataView(sqlGCValue);
            DataView dvTemp;
            for (int i = 0; i < dv.Count; i++)
            {
                node = new EpointTreeNode();
                node.Text = Convert.ToString(dv[i]["ItemText"]);
                node.Value = Convert.ToString(dv[i]["ItemValue"]);
                string sqlXMtype = string.Format(@"select ItemValue,ItemText from VIEW_CodeMain_CodeItems where CodeName='{0}' and ItemValue like '" + Convert.ToString(dv[i]["ItemValue"]) + "%'", "项目库项目类型");
                dvTemp = Epoint.MisBizLogic2.DB.ExecuteDataView(sqlXMtype);
                TreeView1.Nodes.Add(node);
                if (dvTemp.Count > 0)
                    expandChildNodes(node, dvTemp);     //实时加载子节点
            }

        }

        /// <summary>
        /// 递归绑定子节点
        /// </summary>
        /// <param name="parentNode"></param>
        /// <param name="dv"></param>
        private void expandChildNodes(EpointTreeNode parentNode, DataView dv)
        {
            EpointTreeNode node; 
            string fullItemText = "";
            string[] TextArr;
            for (int i = 0; i < dv.Count; i++)
            {
                node = new EpointTreeNode();
                fullItemText = Convert.ToString(dv[i]["ItemText"]);
                if (fullItemText.Contains("—"))
                {
                    TextArr = fullItemText.Split('—');
                    node.Text = TextArr[1];
                }
                else
                {
                    node.Text = Convert.ToString(dv[i]["ItemText"]);
                }
                node.Value = Convert.ToString(dv[i]["ItemValue"]);
                node.NavigateUrl = "NodeWeightConfigTree.aspx?projecttype=" + node.Value + "&firstnodename=" + node.Text;
                parentNode.ChildNodes.Add(node); //添加子节点
            }
        } 
    }