模板
教程
环境
性能
功能
管理
三级下拉框连动的数据库版！
发表于：2007-06-30来源：作者：点击数：
标签：
% Option Explicit @#---------阿舜作品更新于2001.3.11------------- @# 数据库 结构和上次发表的同样 @#三级下拉框连动 @# @#数据库： @#location @#表1 loaction所在地表 @#字段 @#loactionid（主键） @#loactionname 名字 @#表2 district所在的地区表 @#
<%Option Explicit
@#---------阿舜作品更新于2001.3.11-------------
@#数据库结构和上次发表的同样
@#三级下拉框连动
@#
@#数据库：
@#location
@#表1 loaction 所在地表
@# 字段
@# loactionid （主键）
@# loactionname 名字
@#表2 district 所在的地区表
@# 字段
@# locationid （主键）
@# districtid
@# districtname
@#表3 village 所在的县区表
@# 字段
@# districtid （主键）
@# villageid
@# villagename
%>
<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
dim rs2
dim sql2
dim count2
set conn=server.createobject("adodb.connection")
conn.open"provider=sqloledb;data source=192.168.0.33;uid=sa;pwd=;database=location;"
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(@#==所选城市的地区==@#,@#@#);
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>
<%sql2 = "select * from village order by districtid asc"
set rs2 = conn.execute(sql2)
%>
<script language = "JavaScript">
var onecount2;
onecount2=0;
subcat2 = new Array();
<%
count2 = 0
do while not rs2.eof
%>
subcat2[<%=count2%>] = new Array("<%= trim(rs2("villagename"))%>","<%= trim(rs2("districtid"))%>","<%= trim(rs2("villageid"))%>");
<%
count2 = count2 + 1
rs2.movenext
loop
rs2.close
set rs2=nothing
%>
onecount2=<%=count2%>;
function changelocation2(villageid)
{
document.myform.village.length = 0;
var villageid=villageid;
var j;
document.myform.village.options[0] = new Option(@#==所选地区的县区==@#,@#@#);
for (j=0;j < onecount2; j++)
{
if (subcat2[j][1] == villageid)
{
document.myform.village.options[document.myform.village.length] = new Option(subcat2[j][0], subcat2[j][2]);
}
}
}
</script>
</head>
<body>
<form name="myform" method="post">
题目：<input type="text" name="T2" size="20"><br>
来源：<input type="text" name="T3" size="20"><br>
分类：<select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)" size="1">
<option selected>请选择你所在的省份</option>
<%
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 conn = nothing
%>
</select>
<select name="smalllocation" onChange="changelocation2(document.myform.smalllocation.options[document.myform.smalllocation.selectedIndex].value)">
<option selected value="">==所有地区==</option>
</select>
<select name="village" size="1">
<option selected>==所有县区==</option>
</select>
<br>
关键词：<input type="text" name="T4" size="20"><br>
内容：<textarea rows="9" name="S1" cols="51"></textarea>
</form>
</body>
</html>
