一步一步教你做三级可折叠树形菜单。
多谢大家帮我做测试
演示例子
[url=http://www.bvbuy.cn/bbss/index.htm]http://www.bvbuy.cn/bbss/index.htm[/url]
所需js 和css 文件请到我的资源里下载
第一步建表bbs_panel1
id panelName panelMsg url
21 开发语言 xx
表bbs_panel2
id pid panelName panelInfo panelSort url
1 21 VC/MFC
2 21 vb
表bbs_panel3
id pid ppid panelName panelInfo panelsort url
1 1 21 基础类
2 1 21 界面
3 1 21 网络编程
第二步嵌套REPEATER
[code=HTML]
[/CODE]
第三步 后台
[code=C#]
private string strbbsType = "2";
private string sql = "";
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["bbsType"]!=null)
{
strbbsType = Request.QueryString["bbsType"].ToString();
}
if (!IsPostBack)
{
if (strbbsType=="1")
{
sql = "select id,MenuName,url from M_MenuHead where id>0 order by id";
}
else
{
sql = "select id,panelName as MenuName,url from bbs_panel1 ";
}
DataSet rd = new DataSet();
rd = SqlHelper.ExecuteDataset(SqlHelper.Conn2, CommandType.Text, sql);
bClass.DataSource = rd;
bClass.DataBind();
}
}
protected void bClassList(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
string preid = ((DataRowView)e.Item.DataItem).Row["id"].ToString();//获得对应ID
Repeater bsClass = (Repeater)e.Item.FindControl("bsClass");//找到要绑定数据的Repeater
if (bsClass != null)
{
if (strbbsType == "1")
{
sql = "select id,pid,MenuName from M_MenuChildren where pid=" + preid + " ";
}
else
{
sql = "select id,pid,panelName as MenuName from bbs_panel2 where pid=" + preid + " ";
}
DataSet srd = new DataSet();
srd = SqlHelper.ExecuteDataset(SqlHelper.Conn2, CommandType.Text, sql);
bsClass.DataSource = srd;
bsClass.DataBind();
}
}
}
protected void bsClassList(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
string preid = ((DataRowView)e.Item.DataItem).Row["id"].ToString();//获得对应ID
Repeater sClass = (Repeater)e.Item.FindControl("sClass");//找到要绑定数据的Repeater
if (sClass != null)
{if (strbbsType=="1")
{
sql = "select id,pid,ppid,MenuName from M_MenuChildren2 where pid=" + preid + " ";
}
else
{
sql = "select id,pid,ppid,panelName as MenuName from bbs_panel3 where pid=" + preid + " ";
}
DataSet srd = new DataSet();
srd = SqlHelper.ExecuteDataset(SqlHelper.Conn2, CommandType.Text, sql);
//SqlHelper.Conn2是数据库连接字符
sClass.DataSource = srd;
sClass.DataBind();
}
}
}
[/code]