下拉框连动的小例子（数据库版）
2016-01-29 17:18
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）
<%@ Language=VBScript %
<%Option Explicit%
<html
<head
<titleList</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
