Asp.net 2.0 Treeview 动态填充,并实现无限级树

Asp.net 2.0 Treeview 动态填充,并实现无限级树,

数据库表关键字段:

表: table1

type_id type_name per_type_id

0 根目录 -1

1 子目录 0

2 子目录2 0

3 子子目录 2

9 根目录二 -1

C#代码

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class tree : System.Web.UI.Page

效果:

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