当前位置: 首页 > 图文教程 > 网络编程 > ASP > 下拉框连动的小例子(数据库版)

ASP
用EasyMailObject组件处理Exchange邮件源代码(6)
用EasyMailObject组件处理Exchange邮件源代码(7)
利用ASP和Access数据库制作局域网网上答题系统
用ASP开发试题库与在线考试系统(1)
用ASP开发试题库与在线考试系统(2)
用ASP开发试题库与在线考试系统(3)
用ASP开发试题库与在线考试系统(4)
用ASP开发试题库与在线考试系统(5)
用ASP开发试题库与在线考试系统(6)
用ASP开发试题库与在线考试系统(7)
用ASP开发试题库与在线考试系统(8)
综合的判断用户输入的合法性的函数
三层动态下拉菜单的例子
将你的网站设置为客户的信任站点--VB方案
论坛中有新贴子功能的实现
ASP 编程中 15 个非常有用的例子
一个的无组件上传的ASP代码
利用ASP实现三个强大功能之一
利用ASP实现三个强大功能之二
利用ASP实现三个强大功能之三

ASP 中的 下拉框连动的小例子(数据库版)


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 53 ::
收藏到网摘: n/a

  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
        %>
        <option value="<%=trim(rs1("locationid"))%>"><%=trim(rs1("locationname"))%></option>
        <%
        rs1.movenext
        loop
        rs1.close
        set rs1 = nothing
        conn.Close
        set c