asp.net用标签递归一颗树
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asp.net用标签递归一颗树
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protected void Page_Load(object sender, EventArgs e){inintbind();}/// <summary>/// 初始化所有數據/// </summary>public void inintbind(){string connstr = "Server=127.0.0.1;Port=2003;User Id=SYSDBA;Password=123456;Database=OSRDB;Encoding=GBK;";OscarConnection conn = new OscarConnection(connstr);conn.Open();string sql = "select * from FUNDSOURCE order by id desc ";OscarCommand cmd = new OscarCommand(sql,conn);OscarDataAdapter da = new OscarDataAdapter(cmd);DataSet ds = new DataSet();da.Fill(ds,"tab");createmenu(ds, "0", mainnav);}/// <summary>/// 遞歸樹形菜單/// </summary>/// <param name="ds">數據源</param>/// <param name="parentId">父節點id</param>/// <param name="UL">前臺UL標記id</param>private void createmenu(DataSet ds, string parentId, HtmlGenericControl UL){DataRow[] rows;//判斷id是否為空if (string.IsNullOrEmpty(parentId)){rows = ds.Tables[0].Select("pid is null");//為空說明沒有數據}else{rows = ds.Tables[0].Select("pid='" + parentId + "'");//找到匹配的數據}foreach (DataRow t in rows){HtmlGenericControl serverUL = new HtmlGenericControl("ul");//創建ul標簽HtmlGenericControl serverLi = new HtmlGenericControl("li");//生成Li標簽，作為父節點if (t["pid"].ToString() == "0"){serverLi.InnerHtml = "<a href='#######' οnclick='liclick(this)'>" + t["INVENAME"].ToString() + "</a>";//serverUL.Attributes.Add("style", "display:none");}else{serverLi.InnerHtml = "<a href='#######' οnclick='liclick(this)'>" + t["INVENAME"].ToString() + "</a>";//serverUL.Attributes.Add("style", "display:none");}serverLi.Controls.Add(serverUL);UL.Controls.Add(serverLi);createmenu(ds, t["id"].ToString(), serverUL);}}
View Code <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="js/jquery-1.5.min.js" type="text/javascript"></script>
<script type="text/javascript">
function liclick(obj) {
$(obj).parent().find("ul").toggle();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<ul id="mainnav" runat="server"></ul>
</div>
</form>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="js/jquery-1.5.min.js" type="text/javascript"></script>
<script type="text/javascript">
function liclick(obj) {
$(obj).parent().find("ul").toggle();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<ul id="mainnav" runat="server"></ul>
</div>
</form>
</body>
</html>
轉載于:https://www.cnblogs.com/htht530/archive/2011/09/03/2165533.html
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