using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls;namespace oilnew { /// <summary> /// liandong 的摘要说明。 /// </summary> public class liandong : System.Web.UI.Page { protected System.Web.UI.WebControls.DropDownList province; protected System.Web.UI.WebControls.DropDownList city; protected System.Web.UI.WebControls.Label Label1; protected System.Web.UI.HtmlControls.HtmlInputHidden HiddenValue; protected System.Web.UI.HtmlControls.HtmlInputHidden HiddenValueshi;
现在我把这段javascript写到一个js文件里,然后用<script language="javascript" src="ss.js"></script>
引用,页面的两个下拉框就都是空的了?IE下面有!提示什么什么错误,我把这段代码放到本页的aspx里,就又没有问题了,这是怎么回事?
路径没问题?那就是你 js 的问题,调试看看
var where = new Array(36);
function comefrom(loca,locacity) { this.loca = loca; this.locacity = locacity; }
where[0]= new comefrom("==请选择==","==请选择==");
where[1] = new comefrom("北京","|东城|西城|崇文|宣武|朝阳|丰台|石景山|海淀|门头沟|房山|通州|顺义|昌平|大兴|平谷|怀柔|密云|延庆");
where[2] = new comefrom("上海","|黄浦|卢湾|徐汇|长宁|静安|普陀|闸北|虹口|杨浦|闵行|宝山|嘉定|浦东|金山|松江|青浦|南汇|奉贤|崇明");
where[3] = new comefrom("天津","|和平|东丽|河东|西青|河西|津南|南开|北辰|河北|武清|红挢|塘沽|汉沽|大港|宁河|静海|宝坻|蓟县");
where[4] = new comefrom("重庆","|万州|涪陵|渝中|大渡口|江北|沙坪坝|九龙坡|南岸|北碚|万盛|双挢|渝北|巴南|黔江|长寿|綦江|潼南|铜梁|大足|荣昌|壁山|梁平|城口|丰都|垫江|武隆|忠县|开县|云阳|奉节|巫山|巫溪|石柱|秀山|酉阳|彭水|江津|合川|永川|南川");
where[5] = new comefrom("河北","|石家庄|邯郸|邢台|保定|张家口|承德|廊坊|唐山|秦皇岛|沧州|衡水");
where[6] = new comefrom("山西","|太原|大同|阳泉|长治|晋城|朔州|吕梁|忻州|晋中|临汾|运城");
where[7] = new comefrom("内蒙古","|呼和浩特|包头|乌海|赤峰|呼伦贝尔盟|阿拉善盟|哲里木盟|兴安盟|乌兰察布盟|锡林郭勒盟|巴彦淖尔盟|伊克昭盟");
where[8] = new comefrom("辽宁","|沈阳|大连|鞍山|抚顺|本溪|丹东|锦州|营口|阜新|辽阳|盘锦|铁岭|朝阳|葫芦岛");
where[9] = new comefrom("吉林","|长春|吉林|四平|辽源|通化|白山|松原|白城|延边");
where[10] = new comefrom("黑龙江","|哈尔滨|齐齐哈尔|牡丹江|佳木斯|大庆|绥化|鹤岗|鸡西|黑河|双鸭山|伊春|七台河|大兴安岭");
where[11] = new comefrom("江苏","|南京|镇江|苏州|南通|扬州|盐城|徐州|连云港|常州|无锡|宿迁|泰州|淮安|丹徒|丹阳|张家港|太仓|昆山|吴江|海门|如皋|如东|扬中|东台|溧阳|武进|江阴|锡山|宜兴|金坛");
where[12] = new comefrom("浙江","|杭州|宁波|温州|嘉兴|湖州|绍兴|金华|衢州|舟山|台州|丽水");
where[13] = new comefrom("安徽","|合肥|芜湖|蚌埠|马鞍山|淮北|铜陵|安庆|黄山|滁州|宿州|池州|淮南|巢湖|阜阳|六安|宣城|亳州");
where[14] = new comefrom("福建","|福州|厦门|莆田|三明|泉州|漳州|南平|龙岩|宁德");
where[15] = new comefrom("江西","|南昌市|景德镇|九江|鹰潭|萍乡|新馀|赣州|吉安|宜春|抚州|上饶");
where[16] = new comefrom("山东","|济南|青岛|淄博|枣庄|东营|烟台|潍坊|济宁|泰安|威海|日照|莱芜|临沂|德州|聊城|滨州|菏泽");
where[17] = new comefrom("河南","|郑州|开封|洛阳|平顶山|安阳|鹤壁|新乡|焦作|濮阳|许昌|漯河|三门峡|南阳|商丘|信阳|周口|驻马店|济源");
where[18] = new comefrom("湖北","|武汉|宜昌|荆州|襄樊|黄石|荆门|黄冈|十堰|恩施|潜江|天门|仙桃|随州|咸宁|孝感|鄂州");
where[19] = new comefrom("湖南","|长沙|常德|株洲|湘潭|衡阳|岳阳|邵阳|益阳|娄底|怀化|郴州|永州|湘西|张家界");
where[20] = new comefrom("广东","|广州|深圳|珠海|汕头|东莞|中山|佛山|韶关|江门|湛江|茂名|肇庆|惠州|梅州|汕尾|河源|阳江|清远|潮州|揭阳|云浮");
where[21] = new comefrom("广西","|南宁|柳州|桂林|梧州|北海|防城港|钦州|贵港|玉林|南宁地区|柳州地区|贺州|百色|河池");
where[22] = new comefrom("海南","|海口|三亚");
where[23] = new comefrom("四川","|成都|绵阳|德阳|自贡|攀枝花|广元|内江|乐山|南充|宜宾|广安|达川|雅安|眉山|甘孜|凉山|泸州");
where[24] = new comefrom("贵州","|贵阳|六盘水|遵义|安顺|铜仁|黔西南|毕节|黔东南|黔南");
where[25] = new comefrom("云南","|昆明|大理|曲靖|玉溪|昭通|楚雄|红河|文山|思茅|西双版纳|保山|德宏|丽江|怒江|迪庆|临沧");
where[26] = new comefrom("西藏","|拉萨|日喀则|山南|林芝|昌都|阿里|那曲");
where[27] = new comefrom("陕西","|西安|宝鸡|咸阳|铜川|渭南|延安|榆林|汉中|安康|商洛");
where[28] = new comefrom("甘肃","|兰州|嘉峪关|金昌|白银|天水|酒泉|张掖|武威|定西|陇南|平凉|庆阳|临夏|甘南");
where[29] = new comefrom("宁夏","|银川|石嘴山|吴忠|固原");
where[30] = new comefrom("青海","|西宁|海东|海南|海北|黄南|玉树|果洛|海西");
where[31] = new comefrom("新疆","|乌鲁木齐|石河子|克拉玛依|伊犁|巴音郭勒|昌吉|克孜勒苏柯尔克孜|博尔塔拉|吐鲁番|哈密|喀什|和田|阿克苏");
where[32] = new comefrom("香港","");
where[33] = new comefrom("澳门","");
where[34] = new comefrom("台湾","|台北|高雄|台中|台南|屏东|南投|云林|新竹|彰化|苗栗|嘉义|花莲|桃园|宜兰|基隆|台东|金门|马祖|澎湖");
where[35] = new comefrom("国外","|北美洲|南美洲|亚洲|非洲|欧洲|大洋洲");
function select()
{
// var obj=document.getElementById("Lable1");
// obj.Text="dssd";
//document.all.
// obj.Text=province.options[province.selectedIndex].value;
with(document.all.Form1.province)
{
var loca2 = options[selectedIndex].value;
document.all.HiddenValue.value = loca2;
}
for(i = 0;i < where.length;i ++)
{
if (where[i].loca == loca2)
{
loca3 = (where[i].locacity).split("|");
for(j = 1;j < loca3.length;j++)
{
with(document.all.Form1.city)
{
length = loca3.length;
options[j].text = loca3[j];
options[j].value = loca3[j];
}
}
break;
}
}
with(document.all.Form1.city)
{
options[0].selected = true;
}
//document.creator.address.value=loca2+loca4;
}
function init() {
with(document.all.Form1.province)
{
length = where.length;
for(k=0;k<where.length;k++)
{
options[k].text = where[k].loca;
options[k].value = where[k].loca;
}
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
with(document.all.Form1.city)
{
loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(l=0;l<length;l++)
{
options[l].text = loca3[l]; options[l].value = loca3[l];
}
//options[selectedIndex].text = loca3[0]; options[selectedIndex].value = loca3[0];
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
}引用就是<script language="javascript" src="ss.js"></script>
这样就出不出来,可能哪里少了document.all?
if (! Page.IsStartupScriptRegistered("init"))
{
Page.RegisterStartupScript("init", "<script>init();</script>");
}
if(!IsPostBack)
{
province.Attributes.Add("onchange","select()");
}
现在取值也没有问题了,就是放到js文件里就显示不出来,IE状态栏提示的是
错误:缺少对象
估计哪里少写了什么东东,我看不出来了
引用时加
<script src="ss.js" charset="gb2312"></script>
<%@ Page language="c#" Codebehind="liandong.aspx.cs" AutoEventWireup="false" Inherits="oilnew.liandong" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>liandong</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
<script language="javascript">
<!--
var where = new Array(36);
function comefrom(loca,locacity) { this.loca = loca; this.locacity = locacity; }
where[0]= new comefrom("==请选择==","==请选择==");
where[1] = new comefrom("北京","|东城|西城|崇文|宣武|朝阳|丰台|石景山|海淀|门头沟|房山|通州|顺义|昌平|大兴|平谷|怀柔|密云|延庆");
where[2] = new comefrom("上海","|黄浦|卢湾|徐汇|长宁|静安|普陀|闸北|虹口|杨浦|闵行|宝山|嘉定|浦东|金山|松江|青浦|南汇|奉贤|崇明");
where[3] = new comefrom("天津","|和平|东丽|河东|西青|河西|津南|南开|北辰|河北|武清|红挢|塘沽|汉沽|大港|宁河|静海|宝坻|蓟县");
where[4] = new comefrom("重庆","|万州|涪陵|渝中|大渡口|江北|沙坪坝|九龙坡|南岸|北碚|万盛|双挢|渝北|巴南|黔江|长寿|綦江|潼南|铜梁|大足|荣昌|壁山|梁平|城口|丰都|垫江|武隆|忠县|开县|云阳|奉节|巫山|巫溪|石柱|秀山|酉阳|彭水|江津|合川|永川|南川");
where[5] = new comefrom("河北","|石家庄|邯郸|邢台|保定|张家口|承德|廊坊|唐山|秦皇岛|沧州|衡水");
where[6] = new comefrom("山西","|太原|大同|阳泉|长治|晋城|朔州|吕梁|忻州|晋中|临汾|运城");
where[7] = new comefrom("内蒙古","|呼和浩特|包头|乌海|赤峰|呼伦贝尔盟|阿拉善盟|哲里木盟|兴安盟|乌兰察布盟|锡林郭勒盟|巴彦淖尔盟|伊克昭盟");
where[8] = new comefrom("辽宁","|沈阳|大连|鞍山|抚顺|本溪|丹东|锦州|营口|阜新|辽阳|盘锦|铁岭|朝阳|葫芦岛");
where[9] = new comefrom("吉林","|长春|吉林|四平|辽源|通化|白山|松原|白城|延边");
where[10] = new comefrom("黑龙江","|哈尔滨|齐齐哈尔|牡丹江|佳木斯|大庆|绥化|鹤岗|鸡西|黑河|双鸭山|伊春|七台河|大兴安岭");
where[11] = new comefrom("江苏","|南京|镇江|苏州|南通|扬州|盐城|徐州|连云港|常州|无锡|宿迁|泰州|淮安|丹徒|丹阳|张家港|太仓|昆山|吴江|海门|如皋|如东|扬中|东台|溧阳|武进|江阴|锡山|宜兴|金坛");
where[12] = new comefrom("浙江","|杭州|宁波|温州|嘉兴|湖州|绍兴|金华|衢州|舟山|台州|丽水");
where[13] = new comefrom("安徽","|合肥|芜湖|蚌埠|马鞍山|淮北|铜陵|安庆|黄山|滁州|宿州|池州|淮南|巢湖|阜阳|六安|宣城|亳州");
where[14] = new comefrom("福建","|福州|厦门|莆田|三明|泉州|漳州|南平|龙岩|宁德");
where[15] = new comefrom("江西","|南昌市|景德镇|九江|鹰潭|萍乡|新馀|赣州|吉安|宜春|抚州|上饶");
where[16] = new comefrom("山东","|济南|青岛|淄博|枣庄|东营|烟台|潍坊|济宁|泰安|威海|日照|莱芜|临沂|德州|聊城|滨州|菏泽");
where[17] = new comefrom("河南","|郑州|开封|洛阳|平顶山|安阳|鹤壁|新乡|焦作|濮阳|许昌|漯河|三门峡|南阳|商丘|信阳|周口|驻马店|济源");
where[18] = new comefrom("湖北","|武汉|宜昌|荆州|襄樊|黄石|荆门|黄冈|十堰|恩施|潜江|天门|仙桃|随州|咸宁|孝感|鄂州");
where[19] = new comefrom("湖南","|长沙|常德|株洲|湘潭|衡阳|岳阳|邵阳|益阳|娄底|怀化|郴州|永州|湘西|张家界");
where[20] = new comefrom("广东","|广州|深圳|珠海|汕头|东莞|中山|佛山|韶关|江门|湛江|茂名|肇庆|惠州|梅州|汕尾|河源|阳江|清远|潮州|揭阳|云浮");
where[21] = new comefrom("广西","|南宁|柳州|桂林|梧州|北海|防城港|钦州|贵港|玉林|南宁地区|柳州地区|贺州|百色|河池");
where[22] = new comefrom("海南","|海口|三亚");
where[23] = new comefrom("四川","|成都|绵阳|德阳|自贡|攀枝花|广元|内江|乐山|南充|宜宾|广安|达川|雅安|眉山|甘孜|凉山|泸州");
where[24] = new comefrom("贵州","|贵阳|六盘水|遵义|安顺|铜仁|黔西南|毕节|黔东南|黔南");
where[25] = new comefrom("云南","|昆明|大理|曲靖|玉溪|昭通|楚雄|红河|文山|思茅|西双版纳|保山|德宏|丽江|怒江|迪庆|临沧");
where[26] = new comefrom("西藏","|拉萨|日喀则|山南|林芝|昌都|阿里|那曲");
where[27] = new comefrom("陕西","|西安|宝鸡|咸阳|铜川|渭南|延安|榆林|汉中|安康|商洛");
where[28] = new comefrom("甘肃","|兰州|嘉峪关|金昌|白银|天水|酒泉|张掖|武威|定西|陇南|平凉|庆阳|临夏|甘南");
where[29] = new comefrom("宁夏","|银川|石嘴山|吴忠|固原");
where[30] = new comefrom("青海","|西宁|海东|海南|海北|黄南|玉树|果洛|海西");
where[31] = new comefrom("新疆","|乌鲁木齐|石河子|克拉玛依|伊犁|巴音郭勒|昌吉|克孜勒苏柯尔克孜|博尔塔拉|吐鲁番|哈密|喀什|和田|阿克苏");
where[32] = new comefrom("香港","");
where[33] = new comefrom("澳门","");
where[34] = new comefrom("台湾","|台北|高雄|台中|台南|屏东|南投|云林|新竹|彰化|苗栗|嘉义|花莲|桃园|宜兰|基隆|台东|金门|马祖|澎湖");
where[35] = new comefrom("国外","|北美洲|南美洲|亚洲|非洲|欧洲|大洋洲");
function select()
{
// var obj=document.getElementById("Lable1");
// obj.Text="dssd";
//document.all.
// obj.Text=province.options[province.selectedIndex].value;
with(document.all.Form1.province)
{
var loca2 = options[selectedIndex].value;
document.all.HiddenValue.value = loca2;
}
for(i = 0;i < where.length;i ++)
{
if (where[i].loca == loca2)
{
loca3 = (where[i].locacity).split("|");
for(j = 1;j < loca3.length;j++)
{
with(document.all.Form1.city)
{
length = loca3.length;
options[j].text = loca3[j];
options[j].value = loca3[j];
}
}
break;
}
}
with(document.all.Form1.city)
{
options[0].selected = true;
}
//document.creator.address.value=loca2+loca4;
}
function select1() {
with(document.all.Form1.city)
{
var loca4=options[selectedIndex].value;
document.all.HiddenValueshi.value = loca4;
}
}function init() {
with(document.all.Form1.province)
{
length = where.length;
for(k=0;k<where.length;k++)
{
options[k].text = where[k].loca;
options[k].value = where[k].loca;
}
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
with(document.all.Form1.city)
{
loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(l=0;l<length;l++)
{
options[l].text = loca3[l]; options[l].value = loca3[l];
}
//options[selectedIndex].text = loca3[0]; options[selectedIndex].value = loca3[0];
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
}-->
</script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:dropdownlist id="province" Runat="server"></asp:dropdownlist><asp:dropdownlist id="city" Runat="server"></asp:dropdownlist></SELECT><asp:button id="Button1" style="Z-INDEX: 101; LEFT: 240px; POSITION: absolute; TOP: 48px" runat="server"
Text="Button"></asp:button><asp:label id="Label1" style="Z-INDEX: 102; LEFT: 280px; POSITION: absolute; TOP: 136px" runat="server">Label</asp:label><input id="HiddenValue" type="hidden" name="HiddenValue" runat="server">
<input id="HiddenValueshi" type="hidden" name="HiddenValueshi" runat="server">
</form>
</body>
</HTML>
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace oilnew
{
/// <summary>
/// liandong 的摘要说明。
/// </summary>
public class liandong : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DropDownList province;
protected System.Web.UI.WebControls.DropDownList city;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.HtmlControls.HtmlInputHidden HiddenValue;
protected System.Web.UI.HtmlControls.HtmlInputHidden HiddenValueshi;
protected System.Web.UI.WebControls.Button Button1;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
if (! Page.IsStartupScriptRegistered("init"))
{
Page.RegisterStartupScript("init", "<script>init();</script>");
}
if(!IsPostBack)
{
province.Attributes.Add("onchange","select()");
city.Attributes.Add("onchange","select1()");
}
} #region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion private void Button1_Click(object sender, System.EventArgs e)
{
Response.Write(HiddenValue.Value);
Response.Write(HiddenValueshi.Value);
}
}
}
<script language="javascript" src="ss.js" charset="gb2312"></script>
</script>
用JS不是更好?两级的话个人认为直接用JS更好,更改时不用提交页面。
当然,两级以上用JS的话数据量太大。就要考虑用C#了。
function select1(怎么写参数??) {
with(document.all.Form1.city)
{
var loca4=options[selectedIndex].value;
document.all.HiddenValueshi.value = loca4;
}
}
那么aspx页面的控件的两个dropdownlist和两个隐藏控件名字都是固定的了,这三个函数怎么加个参数,让我在后台这么city.Attributes.Add("onchange","select1(怎么写参数??)");就把要连动的两个dropdownlist和隐藏控件就传过去了?
我javascript不会
with(document.all.Form1.city)
{
var loca4=options[selectedIndex].value;
document.all.HiddenValueshi.value = loca4;// document.all.HiddenValueshi.value=arg1; //测试直接调用
}
}
初始化时要从隐藏控件load值
function init() {}
with(document.all.Form1.province)
{
length = where.length;
for(k=0;k<where.length;k++)
{
options[k].text = where[k].loca;
options[k].value = where[k].loca;
}
//options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
options[selectedIndex].text=document.all.HiddenValue.value;
options[selectedIndex].value=document.all.HiddenValue.value;
}
with(document.all.Form1.city)
{
loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(l=0;l<length;l++)
{
options[l].text = loca3[l]; options[l].value = loca3[l];
}
//options[selectedIndex].text = loca3[0]; options[selectedIndex].value = loca3[0];
//options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
options[selectedIndex].text=document.all.HiddenValueshi.value;
options[selectedIndex].value=document.all.HiddenValueshi.value;
}
}
var cprin;
with(document.all.Form1.province)
{
length = where.length;
for(k=0;k<where.length;k++)
{
options[k].text = where[k].loca;
options[k].value = where[k].loca;
if (where[k].loca==document.all.HiddenValue.value)
cprin=where[k].locacity;
}
if (document.all.HiddenValue.value=="")
{options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;}
else
{
options[selectedIndex].text=document.all.HiddenValue.value;
options[selectedIndex].value=document.all.HiddenValue.value;
}
}
with(document.all.Form1.city)
{
if (document.all.HiddenValueshi.value=="")
{
loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(l=0;l<length;l++)
{
options[l].text = loca3[l]; options[l].value = loca3[l];
}
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
else
{
loca3 = cprin.split("|");
length = loca3.length;
for(l=0;l<length;l++)
{
options[l].text = loca3[l]; options[l].value = loca3[l];
}
options[selectedIndex].text=document.all.HiddenValueshi.value;
options[selectedIndex].value=document.all.HiddenValueshi.value;
}
}
}
function setValue(ctrlId,iValue)
{
var ctrl = document.getElementById(ctrlId); if(iValue == null || iValue == 0)
ctrl.value = iValue;
}
</head>
<body>
<form ...><SELECT id="startYear" onchange="changeAll('startYear','startMonth','startXun','startWeek','startDate')" name="startYear">
<SCRIPT language="javascript">
for(var year=1980; year<=2050; year++)
{
var option="<option value="+year;
option+=">"+year+"</option>";
document.write(option);
}
</SCRIPT>
</SELECT>
</form>
</body>cs:
string startyears=Request.Form["startYear"];//保持回送前的控件值
string script = "<script language=\"javascript\">setValue(\"startYear\", " + startyears + ");\n";
Page.RegisterStartScript("keep", script);
luckyprg(lucky) 有用C#的示例吗
重庆
北京
上海
重庆
这样的,就是多了一个重庆来这
options[selectedIndex].value=document.all.HiddenValueshi.value;
这的原因 总是把选中项的text负值所以 会有你说的原因我再改改
示例可以看:job.nju.edu.cn 点击招聘信息,就可以看到效果
我把我写的类贴出来,但愿能有点用,呵呵
大体思路就是用一个类封装了两个dropdownlist,
保留状态就用dropdownlist本身的功能
但联动是用javascript实现的,而javascript代码都是在这个类中生成的代码太长,这里贴不下,可以看:
http://www.x2design.net/ChinaCitySelector.txt
1、ss.js
function SetDept(S,DSO,Elemnet,txt)
{
var doc,Provinces;
doc=DSO.XMLDocument;
Provinces=doc.selectNodes("//"+Elemnet);
for(var i=0;i<Provinces.length;i++)
S.options[i]=new Option(Provinces[i].childNodes[1].text,Provinces[i].childNodes[0].text);
SetOpt(S,txt);
}
function SetOpt(S,txt)
{
if(document.getElementById(txt).value!="")
{
for(var i=0;i<S.length;i++)
if(S.options[i].value==document.getElementById(txt).value)
S.options[i].selected=true;
}
else
{
document.getElementById(txt).value=S.options[0].value;
}
}
function AddOption(S,DSO,Elemnet,AttrName,id,txt)
{
for(var i=S.length-1;i>=0;i--)
S.options[i]=null;
var doc,Citys;
doc=DSO.XMLDocument;
Citys=doc.selectNodes("//"+Elemnet+"[@"+AttrName+"='"+id+"']");
for(var i=0;i<Citys.length;i++)
S.options[i]=new Option(Citys[i].childNodes[1].text,Citys[i].childNodes[0].text);
SetOpt(S,txt);
}
function SetValue(Pstr,p)
{
document.getElementById(Pstr).value=p;
}
2、CityData.xml不全你自己调整
<?xml version="1.0" encoding="GBK"?>
<Citys>
<Province>
<ProvinceID>01</ProvinceID>
<ProvinceName>福建</ProvinceName>
</Province>
<Province>
<ProvinceID>02</ProvinceID>
<ProvinceName>海南</ProvinceName>
</Province>
<City ProvinceID="01">
<CityID>0101</CityID>
<CityName>福州</CityName>
</City>
<City ProvinceID="01">
<CityID>0102</CityID>
<CityName>厦门</CityName>
</City>
<City ProvinceID="01">
<CityID>0103</CityID>
<CityName>莆田</CityName>
</City>
<City ProvinceID="01">
<CityID>0104</CityID>
<CityName>三明</CityName>
</City>
<City ProvinceID="01">
<CityID>0105</CityID>
<CityName>泉州</CityName>
</City>
<City ProvinceID="01">
<CityID>0106</CityID>
<CityName>漳州</CityName>
</City>
<City ProvinceID="01">
<CityID>0107</CityID>
<CityName>南平</CityName>
</City>
<City ProvinceID="01">
<CityID>0108</CityID>
<CityName>龙岩</CityName>
</City>
<City ProvinceID="01">
<CityID>0109</CityID>
<CityName>宁德</CityName>
</City>
<City ProvinceID="02">
<CityID>0201</CityID>
<CityName>海口</CityName>
</City>
<City ProvinceID="02">
<CityID>0202</CityID>
<CityName>三亚</CityName>
</City>
</Citys>
1)、</HEAD>前加
<script src="ss.js"></script>
<xml id="CityDSO" src="CityData.xml"></xml>
2)、<body>中加
onload="SetDept(ProvinceList,CityDSO,'Province','txtP');AddOption(CityList,CityDSO,'City','ProvinceID',ProvinceList.value,'txtC');"
3)、<Form>前加
省会:<select name="ProvinceList" size="1" style="WIDTH:80px" onclick="AddOption(CityList,CityDSO,'City','ProvinceID',this.value,'txtC');SetValue('txtP',ProvinceList.value);SetValue('txtC',CityList.value);">
</select>
城市:<select name="CityList" size="1" style="WIDTH:80px" onclick="SetValue('txtC',this.value);">
</select>
4)、<form>后加
<asp:TextBox id="txtP" style="DISPLAY:none" runat="server"></asp:TextBox>
<asp:TextBox id="txtC" style="DISPLAY:none" runat="server"></asp:TextBox>