开发环境 VS.NET 2005 C# Oracle AjaxPro 字串9
最近忙没时间详细解释，先把通用的源码贴出自己看。
出于对性能的考虑，把省市两级写成JS数组，把县区（镇）两级写在 Oracle 里。通过 JS 触发 C# 去读取数据库，然后将数据回传给 JS ，再绑定显示。 字串5
操作 <select> 采用更通用的 createElement() 而没有使用 options.add()
字串2
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Area.aspx.cs" Inherits="Area" %>
字串6
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 字串3
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>地区</title>
</head>
<body>
<form id="form1" runat="server">
<table>
<tr>
<td>
<select id="SF">
<option selected="selected">—请选择—</option>
</select>
</td>
<td>
<select id="CS">
<option selected="selected">—请选择—</option>
</select>
</td>
<td>
<select id="Xian">
<option selected="selected">—请选择—</option>
</select>
</td>
<td> 字串6
<select id="Zhen">
<option selected="selected">—请选择—</option>
</select>
</td>
</tr>
</table> 字串4
<script type="text/javascript">
var aDQ=new Array();
aDQ[0]=["11","北京","0","bj"];
aDQ[1]=["12","天津","0","tj"];
aDQ[2]=["13","河北","0","hb"];
aDQ[3]=["14","山西","0","shang"];
aDQ[4]=["15","内蒙古","0","nmg"];
aDQ[5]=["21","辽宁","0","ln"];
aDQ[6]=["22","吉林","0","jl"];
aDQ[7]=["23","黑龙江","0","hlj"];
aDQ[8]=["31","上海","0","sh"];
aDQ[9]=["32","江苏","0","js"];
aDQ[10]=["33","浙江","0","zhej"];
aDQ[11]=["34","安徽","0","ah"];
aDQ[12]=["35","福建","0","fj"];
aDQ[13]=["36","江西","0","jw"];
aDQ[14]=["37","山东","0","sd"];
aDQ[15]=["41","河南","0","he"];
aDQ[16]=["42","湖北","0","hu"];
aDQ[17]=["43","湖南","0","hn"];
aDQ[18]=["44","广东","0","gd"];
aDQ[19]=["45","广西","0","gx"];
aDQ[20]=["46","海南","0","hain"];
aDQ[21]=["50","重庆","0","cq"];
aDQ[22]=["51","四川","0","sc"];
aDQ[23]=["52","贵州","0","gui"];
aDQ[24]=["53","云南","0","yn"];
aDQ[25]=["54","西藏","0","wc"];
aDQ[26]=["61","陕西","0","shangx"];
aDQ[27]=["62","甘肃","0","gs"]; 字串7
aDQ[28]=["63","青海","0","qh"];
aDQ[29]=["64","宁夏","0","nx"];
aDQ[30]=["65","新疆","0","xj"];
aDQ[31]=["71","台湾","0","tw"];
aDQ[32]=["81","香港","0","xg"];
aDQ[33]=["82","澳门","0","am"];
aDQ[34]=["1101","北京城区","11","bjcq"];
aDQ[35]=["1102","北京县区","11","bjxq"];
aDQ[36]=["1201","天津城区","12","tjcq"];
aDQ[37]=["1202","天津县区","12","tjxq"];
aDQ[38]=["1301","石家庄","13","sjz"];
aDQ[39]=["1302","唐山","13","hbts"];
aDQ[40]=["1303","秦皇岛","13","qhd"];
aDQ[41]=["1304","邯郸","13","hd"];
aDQ[42]=["1305","邢台","13","hbxt"];
aDQ[43]=["1306","保定","13","bd"];
aDQ[44]=["1307","张家口","13","zjk"];
aDQ[45]=["1308","承德","13","cd"];
aDQ[46]=["1309","沧州","13","hbcz"];
aDQ[47]=["1310","廊坊","13","lf"];
aDQ[48]=["1311","衡水","13","hbhs"];
aDQ[49]=["1401","太原","14","ty"];
aDQ[50]=["1402","大同","14","dt"];
aDQ[51]=["1403","阳泉","14","yq"];
aDQ[52]=["1404","长治","14","swcz"];
aDQ[53]=["1405","晋城","14","swjc"];
aDQ[54]=["1406","朔州","14","swsz"]; 字串8
aDQ[55]=["1501","呼和浩特","15","hhht"];
aDQ[56]=["1502","包头","15","bt"];
aDQ[57]=["1503","乌海","15","nmgwh"];
aDQ[58]=["1504","赤峰","15","cf"];
aDQ[59]=["1521","呼伦贝尔盟","15","hlbem"];
aDQ[60]=["1522","兴安盟","15","xam"];
aDQ[61]=["1523","哲里木盟","15","zlmm"];
aDQ[62]=["1525","锡林郭勒盟","15","wlglm"];
aDQ[63]=["1526","乌兰察布盟","15","wlcbm"];
aDQ[64]=["1527","鄂尔多斯","15","eeds"];
aDQ[65]=["1528","巴彦淖尔盟","15","bynem"];
aDQ[66]=["1529","阿拉善盟","15","alsm"];
aDQ[67]=["2101","沈阳","21","lnsy"];
aDQ[68]=["2102","大连","21","dl"];
aDQ[69]=["2103","鞍山","21","as"];
aDQ[70]=["2104","抚顺","21","lnfs"];
aDQ[71]=["2105","本溪","21","bx"];
aDQ[72]=["2106","丹东","21","dd"];
aDQ[73]=["2107","锦州","21","jz"];
aDQ[74]=["2108","营口","21","yk"];
aDQ[75]=["2109","阜新","21","fx"];
aDQ[76]=["2110","辽阳","21","lnly"];
aDQ[77]=["2111","盘锦","21","pj"];
aDQ[78]=["2112","铁岭","21","lntl"];
aDQ[79]=["2113","朝阳","21","cy"];
aDQ[80]=["2114","葫芦岛","21","hld"];