DX控件中TreeView绑定层次数据库数据

使用递归的方式将数据绑定到TreeView上（我使用的这个方法效率上很慢，暂时没找到简便的方法，先将就一下）

 protected void AddDataToTree(TreeViewNode pareentNode)
        {   
         
            DataTable catalogGroup=Base_CategoryProvider .Instance().GetDataTable(
                DBQuery.SelectFields(Base_Category.TAG_CATEGORY_NAME,Base_Category.TAG_CATEGORY_CODE)
                .From(Base_Category.Base_TableName)
                .Where(Base_Category.PARENT_TAG_CAT_CODE,Compare.Equals,DBConst.String(pareentNode.Name)));
            if (catalogGroup.Rows.Count >= 1)
            {
                TreeViewNode node;
                foreach (DataRow group in catalogGroup.Rows)
                {
                    node = new TreeViewNode();
                    node.Name = group[Base_Category.TAG_CATEGORY_CODE].ToString();
                    node.Text = group[Base_Category.TAG_CATEGORY_NAME].ToString();
                    pareentNode.Nodes.Add(node);
                    AddDataToTree(node);
                }
            }
            else
                return;
        }


        protected void Page_Load(object sender, EventArgs e)
        {
            
             
            
            TreeViewNode mainnode = new TreeViewNode();
            mainnode.Text = "所有词条";
            mainnode.Name = "All";
           

            #region  无父类的节点
            DataTable catalogGroup=Base_CategoryProvider .Instance().GetDataTable(
                DBQuery.SelectFields(Base_Category.TAG_CATEGORY_NAME,Base_Category.TAG_CATEGORY_CODE)
                .From(Base_Category.Base_TableName)
                .Where(Base_Category.PARENT_TAG_CAT_CODE,Compare.Is,DBConst.Null()));

            TreeViewNode node;
            
            foreach(DataRow  group in catalogGroup.Rows)
            {  
                node = new TreeViewNode();
                node.Name=group[Base_Category.TAG_CATEGORY_CODE].ToString();
                node.Text=group[Base_Category.TAG_CATEGORY_NAME].ToString();
                mainnode.Nodes.Add(node);
                AddDataToTree(node);
            }

            this.keyWordTree.Nodes.Add(mainnode);
            #endregion

        }

TreeView的客户端事件：

 <dx:ASPxTreeView ID="keyWordTree" runat="server" AllowSelectNode="true">
          <ClientSideEvents Init="function(s, e) {  }" NodeClick="function(s, e) { getKeyWord(s, e); }" />
  </dx:ASPxTreeView>

e代表节点.通过e.node.name和e.node.GetText()访问节点数据。