当前位置： 移动技术网 > IT编程>开发语言>.net > 下拉框连动的小例子（数据库版）

下拉框连动的小例子（数据库版）

2019年01月13日  | 移动技术网IT编程  | 我要评论

冰冷的阵雨电影,红旗l5,非流主头像

asp文件：
<%@ language=vbscript %>
<%option explicit%>
<html>
<head>
<title>list</title>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<%
dim conn
dim rs
dim sql
dim count
dim rs1
dim sql1


set conn = server.createobject ("adodb.connection")
conn.open "test","sa",""


sql = "select * from district order by locationid asc"
set rs = conn.execute(sql)
%>
<script language = "javascript">
var onecount;
onecount=0;
subcat = new array();
        <%
        count = 0
        do while not rs.eof
        %>
subcat[<%=count%>] = new array("<%= trim(rs("districtname"))%>","<%= trim(rs("locationid"))%>","<%= trim(rs("districtid"))%>");
        <%
        count = count + 1
        rs.movenext
        loop
        rs.close
        set rs=nothing
        %>
onecount=<%=count%>;

function changelocation(locationid)
    {
    document.myform.smalllocation.length = 0;

    var locationid=locationid;
    var i;
    document.myform.smalllocation.options[0] = new option(====所有地区====,);
    for (i=0;i < onecount; i++)
        {
            if (subcat[i][1] == locationid)
            {
                document.myform.smalllocation.options[document.myform.smalllocation.length] = new option(subcat[i][0], subcat[i][2]);
            }        
        }
        
    }    
</script>
</head>
<body>
<form name="myform" method="post">
    <select name="biglocation" onchange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedindex].value)">
        <%
        
        sql1 = "select * from location order by locationname asc"
        set rs1 = conn.execute (sql1)
        do while not rs1.eof

您可能感兴趣的文章:

如对本文有疑问，请在下面进行留言讨论，广大热心网友会与你互动！！ 点击进行留言回复

相关文章:

验证码：
最近更新的文章
大家感兴趣的文章
移动技术网