省市级联.net

初学javascript，编译省市级联，使用json在一般处理程序中编译，利用ajax传递数据到web前台

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>json</title>

<script language="javascript" type="text/javascript">

<!--

    var provincelist;

    function getarea() {

        var xmlhttp;

        var _province = document.getElementById("province");

        var msg = document.getElementById("province").value;

        if (window.XMLHttpRequest) {

            xmlhttp = new XMLHttpRequest();

        }

        else {

            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

        }

        xmlhttp.onreadystatechange = function () {

            if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

                 provincelist = eval("(" + xmlhttp.responseText + ")");

                for (var p in provincelist.Area) {

                    var opt_1 = new Option(provincelist.Area[p].name, provincelist.Area[p].id);

                    _province.add(opt_1);

                }

            }

        }

            xmlhttp.open("GET", "Handler1.ashx?q=" + msg, true);

            xmlhttp.send();

        }

        function tocity() {

            var _province = document.getElementById("province");

            var _city = document.getElementById("city");

            var _region = document.getElementById("region");

            var v_province = _province.value;

            _city.options.length = 1;

            _region.options.length = 1;

            for (var p in provincelist.Area) {

                if (provincelist.Area[p].id == v_province) {

                    for (var e in provincelist.Area[p].city) {

                        var opt_2 = new Option( provincelist.Area[p].city[e].name,provincelist.Area[p].city[e].id);

                        _city.add(opt_2);

                    }

                    break;

                }

            }

        }

       function toregion() {

            var _province = document.getElementById("province");

            var _city = document.getElementById("city");

            var _region = document.getElementById("region");

            var v_province = _province.value;

            var v_city = _city.value;

            //_province.options.length=1;

            _region.options.length = 1;

            for (var p in provincelist.Area) {

                if (provincelist.Area[p].id == v_province) {

                    for (var e in provincelist.Area[p].city) {

                        //alert(place_list[e].province[p].value);

                        if (provincelist.Area[p].city[e].id == v_city) {

                            // alert(place_list[e].province[p].value);

                            //document.getElementById("Label3").innerHTML = v_province;

                            for (var k in provincelist.Area[p].city[e].region) {

                                var opt_3 = new Option(provincelist.Area[p].city[e].region[k].name, provincelist.Area[p].city[e].region[k].id);

                                _region.add(opt_3);

                            }

                            // document.getElementById("Label5").innerHTML = v_city ;

                            return;

                        }

                    }

                    break;

                }

            }

        } 

//-->

</script>

</head> 

<body onload="getarea();">

<select id="province"  onchange="tocity();">

<option value="-1">--请选择国家---</option>

</select>

<select id="city" onchange="toregion();" >

<option value="-1">--请选择省份---</option>

</select>

<select id="region" >

<option value="-1">--请选择市区---</option>

</select> 

</body>

</html>

  /// <summary>

    /// Handler1 的摘要说明

    /// </summary>

    public class Handler1 : IHttpHandler

    {

        //public DataSet sqldataset = new DataSet();

        public void ProcessRequest(HttpContext context)

        {

             string provincelist = "{\"Area\":[{\"id\": \"350000\", \"name\": \"福建\", \"city\": "

     +"["

     +"{ \"id\": \"350100\", \"name\": \"福州市\", \"region\":"

     +"["

     +"{ \"id\": \"350102\", \"name\": \"鼓楼区\" }, "

     +"{ \"id\": \"350182\", \"name\": \"长乐市\"}"

     +"]"

     +"},"

     +"{ \"id\": \"350200\", \"name\": \"厦门市\", \"region\":"

     +"[{ \"id\": \"350203\", \"name\": \"思明区\" },"

     +"{ \"id\": \"350212\", \"name\": \"同安区\"}"

     +"]"

     +"}, "

     +"{ \"id\": \"350300\", \"name\": \"莆田市\", \"region\":"

     +"[{ \"id\": \"350302\", \"name\": \"城厢区\" },"

     +"{ \"id\": \"350322\", \"name\": \"仙游县\" }"

     +"]"

     +"},"

     +"{ \"id\": \"350400\", \"name\": \"三明市\", \"region\": "

     +"[{ \"id\": \"350402\", \"name\": \"梅列区\" },"

     +"{ \"id\": \"350403\", \"name\": \"三元区\" }"

     +"]"

     +"}, "

     +"{ \"id\": \"350500\", \"name\": \"泉州市\", \"region\":"

     +"[{ \"id\": \"350502\", \"name\": \"鲤城区\" },"

     +"{ \"id\": \"350503\", \"name\": \"丰泽区\" }"

     +"]"

     +"},"

     +"{ \"id\": \"350600\", \"name\": \"漳州市\", \"region\": "

     +"[{ \"id\": \"350602\", \"name\": \"芗城区\" },"

     +"{ \"id\": \"350603\", \"name\": \"龙文区\" }"

     +"]"

     +"},"

     +"{ \"id\": \"350700\", \"name\": \"南平市\", \"region\":"

     +"[{ \"id\": \"350702\", \"name\": \"延平区\" },"

     +"{ \"id\": \"350721\", \"name\": \"顺昌县\" }"

     +"]"

     +"},"

     +"{ \"id\": \"350900\", \"name\": \"宁德市\", \"region\": "

     +"[{ \"id\": \"350902\", \"name\": \"蕉城区\" },"

     +"{ \"id\": \"350921\", \"name\": \"霞浦县\" }"

     +" ]"

     +" }"

     +" ]"

     +" },"

     +"{ \"id\": \"360000\", \"name\": \"江西\", \"city\": "

     +"["

     +"{ \"id\": \"360100\", \"name\": \"南昌市\", \"region\": "

     +"[ { \"id\": \"360102\", \"name\": \"东湖区\" },"

     +"{ \"id\": \"360103\", \"name\": \"西湖区\"}"

     +" ]"

     +"},"

     +"{ \"id\": \"360200\", \"name\": \"景德镇市\", \"region\": "

     +"[{ \"id\": \"360202\", \"name\": \"昌江区\" },"

     +"{ \"id\": \"360203\", \"name\": \"珠山区\"}"

     +"]"

     +"},"

     +"{ \"id\": \"360300\", \"name\": \"萍乡市\", \"region\":"

     +" ["

     +" { \"id\": \"360302\", \"name\": \"安源区\" },"

     +"{\"id\":\"360313\",\"name\":\"湘东区\"}"

     +" ]"

     +"},"

     +"{\"id\":\"360400\",\"name\":\"九江市\",\"region\":"

     +"[{\"id\":\"360402\",\"name\":\"庐山区\"},"

     +" {\"id\":\"360403\",\"name\":\"浔阳区\"}"

     +"]"

     +" },"

     +" {\"id\":\"360500\",\"name\":\"新余市\",\"region\":"

     +" [{\"id\":\"360502\",\"name\":\"渝水区\"},"

     +" {\"id\":\"360521\",\"name\":\"分宜县\"}"

     +" ]"

     +"},"

     +"{\"id\":\"360600\",\"name\":\"鹰潭市\",\"region\":"

     +"[ {\"id\":\"360602\",\"name\":\"月湖区\"},"

     +" {\"id\":\"360622\",\"name\":\"余江县\"}"

     +" ]"

     +" },"

     +"{\"id\":\"360700\",\"name\":\"赣州市\",\"region\":"

     +"[{\"id\":\"360702\",\"name\":\"章贡区\"},"

     +" {\"id\":\"360721\",\"name\":\"赣县\"}"

     +" ]"

     +"},"

     +" {\"id\":\"360800\",\"name\":\"吉安市\",\"region\":"

     +"[{\"id\":\"360802\",\"name\":\"吉州区\"},"

     +"{\"id\":\"360803\",\"name\":\"青原区\"}"

     +" ]"

     +"},"

     +"{\"id\":\"360900\",\"name\":\"宜春市\",\"region\":"

     +"[{\"id\":\"360902\",\"name\":\"袁州区\"},"

     +"{\"id\":\"360921\",\"name\":\"奉新县\"}"

     +"]"

     +"},"

     +"{\"id\":\"361000\",\"name\":\"抚州地区\",\"region\":"

     +"[{\"id\":\"361002\",\"name\":\"临川区\"},"

     +"{\"id\":\"361021\",\"name\":\"南城县\"}"

     +"]"

     +"},"

     +" {\"id\":\"361100\",\"name\":\"上饶市\",\"region\":"

     +" [{\"id\":\"361102\",\"name\":\"信州区\"},"

     +"{\"id\":\"361121\",\"name\":\"上饶县\"}"

     +"]"

     +" }"

     +"]"

     + "}]}";

             context.Response.ContentType = "text/plain";

             context.Response.Write(provincelist);

        }

        public bool IsReusable

        {

            get

            {

                return false;

            }

        }

    }

省市级联.net的更多相关文章

JavaScript 省市级联效果
JavaScript 省市级联效果 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " ...
JavaScript实现省市级联效果实例
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/ ...
javascript中的省市级联效果
学习javascript的时候都遇到过这样的需求,不仅是省市,还有其他的一些场景,看看关键的代码有哪些吧. <head runat="server"> <titl ...
全国省市级联数据sql语句 mysql版
全国省市级联数据sql语句 mysql版 --省级 provincial create table provincial ( provincialID int, provincialName ), p ...
thinkPHP中省市级联下拉列表
公共函数放置位置common文件夹下common.php文件(此段代码也可放置在要使用的控制器中) 封装的下拉列表函数代码: /** * 根据列表拼装成一个下拉列表 ADD BY CK * @para ...
js省市级联实现
js省市级联实现. for [element] in [collection] 用于循环下标,常用于json for(index in arr){ console.info("下标:&quo ...
纯js实现省市级联效果
我们都知道一般有注册的时候会让用户填入省市啊地区什么的,然后我就想使用纯js制作一个省市级联的效果,只是用于学习以及回顾温习用,首先看下效果图,界面很丑啊,不要嫌弃! 首先还是先看下我的项目目录吧很 ...
Ajax异步刷新省市级联
省市级联在web前端用户注册使用非常广泛.Ajax异步刷新省市级联.如图:选择不同的区,自动加载相应的街. <TD class=field>位置:</TD> <TD&g ...
jquery库和cityselect插件的省市级联
/*$(function(){ $("#select_provice").citySelect({ prov:"北京", nodata:"none&q ...

随机推荐

【CSS 杂记】
1.CSS达到截取效果地方卡机了会计师的立法及 => 地方卡机了... max-width: 400px; overflow: hidden; white-space: nowrap; t ...
lua下的简单OO实现
笔者学习了当前(文末各文献)lua下的各种OO实现方法.略作笔记. 也提出了一些自己的想法.主要还是记录供将来着之参考. 1.概述首先[2]PIL第二版中给出了OO的基于table的实现方式 ...
查看https是否支持ATS
nscurl --ats-diagnostics --verbose https://我的域名
Spring事务传播属性
Spring 对事务控制的支持统一在 TransactionDefinition 类中描述,该类有以下几个重要的接口方法: int getPropagationBehavior():事务的传播行为 i ...
MICAPS数据文件格式
MICAPS系统的数据结构是建立在文件系统基础上的.其特点是: l 利用目录来区分不同的数据来源.要素和层次,即不同的数据来源.要素和层次的数据要放在不同的目录中.同一目录中的数据只能有时次或时效上 ...
The prefix "util" for element "util:list" is not bound.
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4. ...
Easy Tag Write(2)
package skyseraph.android.util.nfc; import com.google.common.collect.BiMap; import com.google.common ...
eBox（stm32）之中断结构
eBox的中断结构参考了mbed,和我们平时所用的中断结构有些差异,不容易理解,最近仔细看了底层代码,终于搞清楚了,总结一下一首先要要搞清楚的几个概念:类的静态成员,实例成员 ...
vs2010问题：未能安装xxx包
打开vs2010新建c++工程,出现问题如图原因是重复安装了,之前安装的没有删除干净,导致冲突. 如果你的vs2010安装在c盘,解决方法:http://blog.sina.com.cn/s/blo ...
用node.js给图片加水印
一.准备工作: 首先,确保你本地已经安装好了node环境.然后,我们进行图像编辑操作需要用到一个Node.js的库:images.这个库的地址是:https://github.com/zhangyua ...

省市级联.net

省市级联.net的更多相关文章

随机推荐

热门专题