效果:
数据库:
思路:
利用for遍历,然后创建父节点,再根据父节点创建出子节点。
代码: 代码如下:using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data;using System.Collections;using System.Configuration;using System.Data.SqlClient;
namespace Tr