在gridview中使用两个dropdownlist控件，可以实现联动，但当第一个dropdownlist取默认值时无法实现联动效
加了if(!IsPostBack)还是不行。我问的问题是，当第一个dropdownlist取默认值时，例如实现省市联动，当省绑定的是“广东”，第一次选择“广东”时，实现不...
加了if(!IsPostBack)还是不行。我问的问题是，当第一个dropdownlist取默认值时，例如实现省市联动，当省绑定的是“广东”，第一次选择“广东”时，实现不了联动，当选其他项后再选“广东”时就可以实现联动了，我想要在默认值时就实现联动代码该怎样写
展开
5个回答
展开全部
<html>
<head>
</head>
<body>
<script language="JavaScript">
<!--
var g_selProvince;
var g_selCity;
var Provinces=new Array(
new Array("110000","北京市"),
new Array("120000","天津市"),
new Array("130000","河北省"),
new Array("140000","山西省"),
new Array("150000","内蒙古自治区"),
new Array("210000","辽宁省"),
new Array("220000","吉林省"),
new Array("230000","黑龙江省"),
new Array("310000","上海市"),
new Array("320000","江苏省"),
new Array("330000","浙江省"),
new Array("340000","安徽省"),
new Array("350000","福建省"),
new Array("360000","江西省"),
new Array("370000","山东省"),
new Array("410000","河南省"),
new Array("420000","湖北省"),
new Array("430000","湖南省"),
new Array("440000","广东省"),
new Array("450000","广西壮族自治区"),
new Array("460000","海南省"),
new Array("500000","重庆市"),
new Array("510000","四川省"),
new Array("520000","贵州省"),
new Array("530000","云南省"),
new Array("540000","西藏自治区"),
new Array("610000","陕西省"),
new Array("620000","甘肃省"),
new Array("630000","青海省"),
new Array("640000","宁夏回族自治区"),
new Array("650000","新疆维吾尔自治区"),
new Array("710000","台湾省"),
new Array("810000","香港特别行政区"),
new Array("820000","澳门特别行政区")
);
var Citys=new Array(
new Array("110100","北京"),
new Array("120100","天津"),
new Array("130101","石家庄"),
new Array("130201","唐山"),
new Array("130301","秦皇岛"),
new Array("130701","张家口"),
new Array("130801","承德"),
new Array("131001","廊坊"),
new Array("130401","邯郸"),
new Array("130501","邢台"),
new Array("130601","保定"),
new Array("130901","沧州"),
new Array("133001","衡水"),
new Array("140101","太原"),
new Array("140201","大同"),
new Array("140301","阳泉"),
new Array("140501","晋城"),
new Array("140601","朔州"),
new Array("142201","忻州"),
new Array("142331","离石"),
new Array("142401","榆次"),
new Array("142601","临汾"),
new Array("142701","运城"),
new Array("140401","长治"),
new Array("150101","呼和浩特"),
new Array("150201","包头"),
new Array("150301","乌海"),
new Array("152601","集宁"),
new Array("152701","东胜"),
new Array("152801","临河"),
new Array("152921","阿拉善左旗"),
new Array("150401","赤峰"),
new Array("152301","通辽"),
new Array("152502","锡林浩特"),
new Array("152101","海拉尔"),
new Array("152201","乌兰浩特"),
new Array("210101","沈阳"),
new Array("210201","大连"),
new Array("210301","鞍山"),
new Array("210401","抚顺"),
new Array("210501","本溪"),
new Array("210701","锦州"),
new Array("210801","营口"),
new Array("210901","阜新"),
new Array("211101","盘锦"),
new Array("211201","铁岭"),
new Array("211301","朝阳"),
new Array("211401","锦西"),
new Array("210601","丹东"),
new Array("220101","长春"),
new Array("220201","吉林"),
new Array("220301","四平"),
new Array("220401","辽源"),
new Array("220601","浑江"),
new Array("222301","白城"),
new Array("222401","延吉"),
new Array("220501","通化"),
new Array("230101","哈尔滨"),
new Array("230301","鸡西"),
new Array("230401","鹤岗"),
new Array("230501","双鸭山"),
new Array("230701","伊春"),
new Array("230801","佳木斯"),
new Array("230901","七台河"),
new Array("231001","牡丹江"),
new Array("232301","绥化"),
new Array("230201","齐齐哈尔"),
new Array("230601","大庆"),
new Array("232601","黑河"),
new Array("232700","加格达奇"),
new Array("310100","上海"),
new Array("320101","南京"),
new Array("320201","无锡"),
new Array("320301","徐州"),
new Array("320401","常州"),
new Array("320501","苏州"),
new Array("320600","南通"),
new Array("320701","连云港"),
new Array("320801","淮阴"),
new Array("320901","盐城"),
new Array("321001","扬州"),
new Array("321101","镇江"),
new Array("330101","杭州"),
new Array("330201","宁波"),
new Array("330301","温州"),
new Array("330401","嘉兴"),
new Array("330501","湖州"),
new Array("330601","绍兴"),
new Array("330701","金华"),
new Array("330801","衢州"),
new Array("330901","舟山"),
new Array("332501","丽水"),
new Array("332602","临海"),
new Array("340101","合肥"),
new Array("340201","芜湖"),
new Array("340301","蚌埠"),
new Array("340401","淮南"),
new Array("340501","马鞍山"),
new Array("340601","淮北"),
new Array("340701","铜陵"),
new Array("340801","安庆"),
new Array("341001","黄山"),
new Array("342101","阜阳"),
new Array("342201","宿州"),
new Array("342301","滁州"),
new Array("342401","六安"),
new Array("342501","宣州"),
new Array("342601","巢湖"),
new Array("342901","贵池"),
new Array("350101","福州"),
new Array("350201","厦门"),
new Array("350301","莆田"),
new Array("350401","三明"),
new Array("350501","泉州"),
new Array("350601","漳州"),
new Array("352101","南平"),
new Array("352201","宁德"),
new Array("352601","龙岩"),
new Array("360101","南昌"),
new Array("360201","景德镇"),
new Array("362101","赣州"),
new Array("360301","萍乡"),
new Array("360401","九江"),
new Array("360501","新余"),
new Array("360601","鹰潭"),
new Array("362201","宜春"),
new Array("362301","上饶"),
new Array("362401","吉安"),
new Array("362502","临川"),
new Array("370101","济南"),
new Array("370201","青岛"),
new Array("370301","淄博"),
new Array("370401","枣庄"),
new Array("370501","东营"),
new Array("370601","烟台"),
new Array("370701","潍坊"),
new Array("370801","济宁"),
new Array("370901","泰安"),
new Array("371001","威海"),
new Array("371100","日照"),
new Array("372301","滨州"),
new Array("372401","德州"),
new Array("372501","聊城"),
new Array("372801","临沂"),
new Array("372901","菏泽"),
new Array("410101","郑州"),
new Array("410201","开封"),
new Array("410301","洛阳"),
new Array("410401","平顶山"),
new Array("410501","安阳"),
new Array("410601","鹤壁"),
new Array("410701","新乡"),
new Array("410801","焦作"),
new Array("410901","濮阳"),
new Array("411001","许昌"),
new Array("411101","漯河"),
new Array("411201","三门峡"),
new Array("412301","商丘"),
new Array("412701","周口"),
new Array("412801","驻马店"),
new Array("412901","南阳"),
new Array("413001","信阳"),
new Array("420101","武汉"),
new Array("420201","黄石"),
new Array("420301","十堰"),
new Array("420400","沙市"),
new Array("420501","宜昌"),
new Array("420601","襄樊"),
new Array("420701","鄂州"),
new Array("420801","荆门"),
new Array("422103","黄州"),
new Array("422201","孝感"),
new Array("422301","咸宁"),
new Array("422421","江陵"),
new Array("422801","恩施"),
new Array("430101","长沙"),
new Array("430401","衡阳"),
new Array("430501","邵阳"),
new Array("432801","郴州"),
new Array("432901","永州"),
new Array("430801","大庸"),
new Array("433001","怀化"),
new Array("433101","吉首"),
new Array("430201","株洲"),
new Array("430301","湘潭"),
new Array("430601","岳阳"),
new Array("430701","常德"),
new Array("432301","益阳"),
new Array("432501","娄底"),
new Array("440101","广州"),
new Array("440301","深圳"),
new Array("441501","汕尾"),
new Array("441301","惠州"),
new Array("441601","河源"),
new Array("440601","佛山"),
new Array("441801","清远"),
new Array("441901","东莞"),
new Array("440401","珠海"),
new Array("440701","江门"),
new Array("441201","肇庆"),
new Array("442001","中山"),
new Array("440801","湛江"),
new Array("440901","茂名"),
new Array("440201","韶关"),
new Array("440501","汕头"),
new Array("441401","梅州"),
new Array("441701","阳江"),
new Array("450101","南宁"),
new Array("450401","梧州"),
new Array("452501","玉林"),
new Array("450301","桂林"),
new Array("452601","百色"),
new Array("452701","河池"),
new Array("452802","钦州"),
new Array("450201","柳州"),
new Array("450501","北海"),
new Array("460100","海口"),
new Array("460200","三亚"),
new Array("510101","成都"),
new Array("513321","康定"),
new Array("513101","雅安"),
new Array("513229","马尔康"),
new Array("510301","自贡"),
new Array("500100","重庆"),
new Array("512901","南充"),
new Array("510501","泸州"),
new Array("510601","德阳"),
new Array("510701","绵阳"),
new Array("510901","遂宁"),
new Array("511001","内江"),
new Array("511101","乐山"),
new Array("512501","宜宾"),
new Array("510801","广元"),
new Array("513021","达县"),
new Array("513401","西昌"),
new Array("510401","攀枝花"),
new Array("500239","黔江土家族苗族自治县"),
new Array("520101","贵阳"),
new Array("520200","六盘水"),
new Array("522201","铜仁"),
new Array("522501","安顺"),
new Array("522601","凯里"),
new Array("522701","都匀"),
new Array("522301","兴义"),
new Array("522421","毕节"),
new Array("522101","遵义"),
new Array("530101","昆明"),
new Array("530201","东川"),
new Array("532201","曲靖"),
new Array("532301","楚雄"),
new Array("532401","玉溪"),
new Array("532501","个旧"),
new Array("532621","文山"),
new Array("532721","思茅"),
new Array("532101","昭通"),
new Array("532821","景洪"),
new Array("532901","大理"),
new Array("533001","保山"),
new Array("533121","潞西"),
new Array("533221","丽江纳西族自治县"),
new Array("533321","泸水"),
new Array("533421","中甸"),
new Array("533521","临沧"),
new Array("540101","拉萨"),
new Array("542121","昌都"),
new Array("542221","乃东"),
new Array("542301","日喀则"),
new Array("542421","那曲"),
new Array("542523","噶尔"),
new Array("542621","林芝"),
new Array("610101","西安"),
new Array("610201","铜川"),
new Array("610301","宝鸡"),
new Array("610401","咸阳"),
new Array("612101","渭南"),
new Array("612301","汉中"),
new Array("612401","安康"),
new Array("612501","商州"),
new Array("612601","延安"),
new Array("612701","榆林"),
new Array("620101","兰州"),
new Array("620401","白银"),
new Array("620301","金昌"),
new Array("620501","天水"),
new Array("622201","张掖"),
new Array("622301","武威"),
new Array("622421","定西"),
new Array("622624","成县"),
new Array("622701","平凉"),
new Array("622801","西峰"),
new Array("622901","临夏"),
new Array("623027","夏河"),
new Array("620201","嘉峪关"),
new Array("622102","酒泉"),
new Array("630100","西宁"),
new Array("632121","平安"),
new Array("632221","门源回族自治县"),
new Array("632321","同仁"),
new Array("632521","共和"),
new Array("632621","玛沁"),
new Array("632721","玉树"),
new Array("632802","德令哈"),
new Array("640101","银川"),
new Array("640201","石嘴山"),
new Array("642101","吴忠"),
new Array("642221","固原"),
new Array("650101","乌鲁木齐"),
new Array("650201","克拉玛依"),
new Array("652101","吐鲁番"),
new Array("652201","哈密"),
new Array("652301","昌吉"),
new Array("652701","博乐"),
new Array("652801","库尔勒"),
new Array("652901","阿克苏"),
new Array("653001","阿图什"),
new Array("653101","喀什"),
new Array("654101","伊宁"),
new Array("710001","台北"),
new Array("710002","基隆"),
new Array("710020","台南"),
new Array("710019","高雄"),
new Array("710008","台中"),
new Array("211001","辽阳"),
new Array("653201","和田"),
new Array("542200","泽当镇"),
new Array("542600","八一镇"),
new Array("820000","澳门"),
new Array("810000","香港")
);
function FillProvinces(selProvince)
{
selProvince.options[0]=new Option("请选择","000000");
for(i=0;i<Provinces.length;i++)
{
selProvince.options[i+1]=new Option(Provinces[i][1],Provinces[i][0]);
}
selProvince.options[0].selected=true;
selProvince.length=i+1;
}
function FillCitys(selCity,ProvinceCode)
{
//if the province is a direct-managed city, like Beijing, shanghai, tianjin, chongqin,hongkong, macro
//need not "请选择选项"
if(ProvinceCode=="110000"||ProvinceCode=="120000"||ProvinceCode=="310000"
||ProvinceCode=="810000"||ProvinceCode=="820000"||ProvinceCode=="500000")
count=0;
else
{selCity.options[0]=new Option("请选择",ProvinceCode);
count=1;}
for(i=0;i<Citys.length;i++)
{
if(Citys[i][0].toString().substring(0,2)==ProvinceCode.substring(0,2))
{
selCity.options[count]=new Option(Citys[i][1],Citys[i][0]);
count=count+1;
}
}
selCity.options[0].selected=true;
selCity.length=count;
}
function Province_onchange()
{
FillCitys(g_selCity,g_selProvince.value);
}
function InitCitySelect(selProvince,selCity)
{
//alert("begin");
g_selProvince=selProvince;
g_selCity=selCity;
selProvince.onchange=Function("Province_onchange();");
FillProvinces(selProvince);
Province_onchange();
}
function InitCitySelect2(selProvince,selCity,CityCode)
{
InitCitySelect(selProvince,selCity)
for(i=0;i<selProvince.length;i++)
{
if(selProvince.options[i].value.substring(0,2)==CityCode.substring(0,2))
{
selProvince.options[i].selected=true;
}
}
Province_onchange();
for(i=0;i<selCity.length;i++)
{
if(selCity.options[i].value==CityCode)
{
selCity.options[i].selected=true;
}
}
}
//-->
</script>
<form name="profile" method="post" action="*">
<Select id=province size=1 name=province>
<OPTION selected></OPTION>
</Select>
<Select id=city size=1 name=city>
<OPTION selected></OPTION>
</Select>
<SCRIPT language=javascript>
InitCitySelect(document.profile.province,document.profile.city);
</SCRIPT>
<input type="submit">
</form>
</body>
</html>
另存为html文件，然后用IE打开，即可看到效果。
<head>
</head>
<body>
<script language="JavaScript">
<!--
var g_selProvince;
var g_selCity;
var Provinces=new Array(
new Array("110000","北京市"),
new Array("120000","天津市"),
new Array("130000","河北省"),
new Array("140000","山西省"),
new Array("150000","内蒙古自治区"),
new Array("210000","辽宁省"),
new Array("220000","吉林省"),
new Array("230000","黑龙江省"),
new Array("310000","上海市"),
new Array("320000","江苏省"),
new Array("330000","浙江省"),
new Array("340000","安徽省"),
new Array("350000","福建省"),
new Array("360000","江西省"),
new Array("370000","山东省"),
new Array("410000","河南省"),
new Array("420000","湖北省"),
new Array("430000","湖南省"),
new Array("440000","广东省"),
new Array("450000","广西壮族自治区"),
new Array("460000","海南省"),
new Array("500000","重庆市"),
new Array("510000","四川省"),
new Array("520000","贵州省"),
new Array("530000","云南省"),
new Array("540000","西藏自治区"),
new Array("610000","陕西省"),
new Array("620000","甘肃省"),
new Array("630000","青海省"),
new Array("640000","宁夏回族自治区"),
new Array("650000","新疆维吾尔自治区"),
new Array("710000","台湾省"),
new Array("810000","香港特别行政区"),
new Array("820000","澳门特别行政区")
);
var Citys=new Array(
new Array("110100","北京"),
new Array("120100","天津"),
new Array("130101","石家庄"),
new Array("130201","唐山"),
new Array("130301","秦皇岛"),
new Array("130701","张家口"),
new Array("130801","承德"),
new Array("131001","廊坊"),
new Array("130401","邯郸"),
new Array("130501","邢台"),
new Array("130601","保定"),
new Array("130901","沧州"),
new Array("133001","衡水"),
new Array("140101","太原"),
new Array("140201","大同"),
new Array("140301","阳泉"),
new Array("140501","晋城"),
new Array("140601","朔州"),
new Array("142201","忻州"),
new Array("142331","离石"),
new Array("142401","榆次"),
new Array("142601","临汾"),
new Array("142701","运城"),
new Array("140401","长治"),
new Array("150101","呼和浩特"),
new Array("150201","包头"),
new Array("150301","乌海"),
new Array("152601","集宁"),
new Array("152701","东胜"),
new Array("152801","临河"),
new Array("152921","阿拉善左旗"),
new Array("150401","赤峰"),
new Array("152301","通辽"),
new Array("152502","锡林浩特"),
new Array("152101","海拉尔"),
new Array("152201","乌兰浩特"),
new Array("210101","沈阳"),
new Array("210201","大连"),
new Array("210301","鞍山"),
new Array("210401","抚顺"),
new Array("210501","本溪"),
new Array("210701","锦州"),
new Array("210801","营口"),
new Array("210901","阜新"),
new Array("211101","盘锦"),
new Array("211201","铁岭"),
new Array("211301","朝阳"),
new Array("211401","锦西"),
new Array("210601","丹东"),
new Array("220101","长春"),
new Array("220201","吉林"),
new Array("220301","四平"),
new Array("220401","辽源"),
new Array("220601","浑江"),
new Array("222301","白城"),
new Array("222401","延吉"),
new Array("220501","通化"),
new Array("230101","哈尔滨"),
new Array("230301","鸡西"),
new Array("230401","鹤岗"),
new Array("230501","双鸭山"),
new Array("230701","伊春"),
new Array("230801","佳木斯"),
new Array("230901","七台河"),
new Array("231001","牡丹江"),
new Array("232301","绥化"),
new Array("230201","齐齐哈尔"),
new Array("230601","大庆"),
new Array("232601","黑河"),
new Array("232700","加格达奇"),
new Array("310100","上海"),
new Array("320101","南京"),
new Array("320201","无锡"),
new Array("320301","徐州"),
new Array("320401","常州"),
new Array("320501","苏州"),
new Array("320600","南通"),
new Array("320701","连云港"),
new Array("320801","淮阴"),
new Array("320901","盐城"),
new Array("321001","扬州"),
new Array("321101","镇江"),
new Array("330101","杭州"),
new Array("330201","宁波"),
new Array("330301","温州"),
new Array("330401","嘉兴"),
new Array("330501","湖州"),
new Array("330601","绍兴"),
new Array("330701","金华"),
new Array("330801","衢州"),
new Array("330901","舟山"),
new Array("332501","丽水"),
new Array("332602","临海"),
new Array("340101","合肥"),
new Array("340201","芜湖"),
new Array("340301","蚌埠"),
new Array("340401","淮南"),
new Array("340501","马鞍山"),
new Array("340601","淮北"),
new Array("340701","铜陵"),
new Array("340801","安庆"),
new Array("341001","黄山"),
new Array("342101","阜阳"),
new Array("342201","宿州"),
new Array("342301","滁州"),
new Array("342401","六安"),
new Array("342501","宣州"),
new Array("342601","巢湖"),
new Array("342901","贵池"),
new Array("350101","福州"),
new Array("350201","厦门"),
new Array("350301","莆田"),
new Array("350401","三明"),
new Array("350501","泉州"),
new Array("350601","漳州"),
new Array("352101","南平"),
new Array("352201","宁德"),
new Array("352601","龙岩"),
new Array("360101","南昌"),
new Array("360201","景德镇"),
new Array("362101","赣州"),
new Array("360301","萍乡"),
new Array("360401","九江"),
new Array("360501","新余"),
new Array("360601","鹰潭"),
new Array("362201","宜春"),
new Array("362301","上饶"),
new Array("362401","吉安"),
new Array("362502","临川"),
new Array("370101","济南"),
new Array("370201","青岛"),
new Array("370301","淄博"),
new Array("370401","枣庄"),
new Array("370501","东营"),
new Array("370601","烟台"),
new Array("370701","潍坊"),
new Array("370801","济宁"),
new Array("370901","泰安"),
new Array("371001","威海"),
new Array("371100","日照"),
new Array("372301","滨州"),
new Array("372401","德州"),
new Array("372501","聊城"),
new Array("372801","临沂"),
new Array("372901","菏泽"),
new Array("410101","郑州"),
new Array("410201","开封"),
new Array("410301","洛阳"),
new Array("410401","平顶山"),
new Array("410501","安阳"),
new Array("410601","鹤壁"),
new Array("410701","新乡"),
new Array("410801","焦作"),
new Array("410901","濮阳"),
new Array("411001","许昌"),
new Array("411101","漯河"),
new Array("411201","三门峡"),
new Array("412301","商丘"),
new Array("412701","周口"),
new Array("412801","驻马店"),
new Array("412901","南阳"),
new Array("413001","信阳"),
new Array("420101","武汉"),
new Array("420201","黄石"),
new Array("420301","十堰"),
new Array("420400","沙市"),
new Array("420501","宜昌"),
new Array("420601","襄樊"),
new Array("420701","鄂州"),
new Array("420801","荆门"),
new Array("422103","黄州"),
new Array("422201","孝感"),
new Array("422301","咸宁"),
new Array("422421","江陵"),
new Array("422801","恩施"),
new Array("430101","长沙"),
new Array("430401","衡阳"),
new Array("430501","邵阳"),
new Array("432801","郴州"),
new Array("432901","永州"),
new Array("430801","大庸"),
new Array("433001","怀化"),
new Array("433101","吉首"),
new Array("430201","株洲"),
new Array("430301","湘潭"),
new Array("430601","岳阳"),
new Array("430701","常德"),
new Array("432301","益阳"),
new Array("432501","娄底"),
new Array("440101","广州"),
new Array("440301","深圳"),
new Array("441501","汕尾"),
new Array("441301","惠州"),
new Array("441601","河源"),
new Array("440601","佛山"),
new Array("441801","清远"),
new Array("441901","东莞"),
new Array("440401","珠海"),
new Array("440701","江门"),
new Array("441201","肇庆"),
new Array("442001","中山"),
new Array("440801","湛江"),
new Array("440901","茂名"),
new Array("440201","韶关"),
new Array("440501","汕头"),
new Array("441401","梅州"),
new Array("441701","阳江"),
new Array("450101","南宁"),
new Array("450401","梧州"),
new Array("452501","玉林"),
new Array("450301","桂林"),
new Array("452601","百色"),
new Array("452701","河池"),
new Array("452802","钦州"),
new Array("450201","柳州"),
new Array("450501","北海"),
new Array("460100","海口"),
new Array("460200","三亚"),
new Array("510101","成都"),
new Array("513321","康定"),
new Array("513101","雅安"),
new Array("513229","马尔康"),
new Array("510301","自贡"),
new Array("500100","重庆"),
new Array("512901","南充"),
new Array("510501","泸州"),
new Array("510601","德阳"),
new Array("510701","绵阳"),
new Array("510901","遂宁"),
new Array("511001","内江"),
new Array("511101","乐山"),
new Array("512501","宜宾"),
new Array("510801","广元"),
new Array("513021","达县"),
new Array("513401","西昌"),
new Array("510401","攀枝花"),
new Array("500239","黔江土家族苗族自治县"),
new Array("520101","贵阳"),
new Array("520200","六盘水"),
new Array("522201","铜仁"),
new Array("522501","安顺"),
new Array("522601","凯里"),
new Array("522701","都匀"),
new Array("522301","兴义"),
new Array("522421","毕节"),
new Array("522101","遵义"),
new Array("530101","昆明"),
new Array("530201","东川"),
new Array("532201","曲靖"),
new Array("532301","楚雄"),
new Array("532401","玉溪"),
new Array("532501","个旧"),
new Array("532621","文山"),
new Array("532721","思茅"),
new Array("532101","昭通"),
new Array("532821","景洪"),
new Array("532901","大理"),
new Array("533001","保山"),
new Array("533121","潞西"),
new Array("533221","丽江纳西族自治县"),
new Array("533321","泸水"),
new Array("533421","中甸"),
new Array("533521","临沧"),
new Array("540101","拉萨"),
new Array("542121","昌都"),
new Array("542221","乃东"),
new Array("542301","日喀则"),
new Array("542421","那曲"),
new Array("542523","噶尔"),
new Array("542621","林芝"),
new Array("610101","西安"),
new Array("610201","铜川"),
new Array("610301","宝鸡"),
new Array("610401","咸阳"),
new Array("612101","渭南"),
new Array("612301","汉中"),
new Array("612401","安康"),
new Array("612501","商州"),
new Array("612601","延安"),
new Array("612701","榆林"),
new Array("620101","兰州"),
new Array("620401","白银"),
new Array("620301","金昌"),
new Array("620501","天水"),
new Array("622201","张掖"),
new Array("622301","武威"),
new Array("622421","定西"),
new Array("622624","成县"),
new Array("622701","平凉"),
new Array("622801","西峰"),
new Array("622901","临夏"),
new Array("623027","夏河"),
new Array("620201","嘉峪关"),
new Array("622102","酒泉"),
new Array("630100","西宁"),
new Array("632121","平安"),
new Array("632221","门源回族自治县"),
new Array("632321","同仁"),
new Array("632521","共和"),
new Array("632621","玛沁"),
new Array("632721","玉树"),
new Array("632802","德令哈"),
new Array("640101","银川"),
new Array("640201","石嘴山"),
new Array("642101","吴忠"),
new Array("642221","固原"),
new Array("650101","乌鲁木齐"),
new Array("650201","克拉玛依"),
new Array("652101","吐鲁番"),
new Array("652201","哈密"),
new Array("652301","昌吉"),
new Array("652701","博乐"),
new Array("652801","库尔勒"),
new Array("652901","阿克苏"),
new Array("653001","阿图什"),
new Array("653101","喀什"),
new Array("654101","伊宁"),
new Array("710001","台北"),
new Array("710002","基隆"),
new Array("710020","台南"),
new Array("710019","高雄"),
new Array("710008","台中"),
new Array("211001","辽阳"),
new Array("653201","和田"),
new Array("542200","泽当镇"),
new Array("542600","八一镇"),
new Array("820000","澳门"),
new Array("810000","香港")
);
function FillProvinces(selProvince)
{
selProvince.options[0]=new Option("请选择","000000");
for(i=0;i<Provinces.length;i++)
{
selProvince.options[i+1]=new Option(Provinces[i][1],Provinces[i][0]);
}
selProvince.options[0].selected=true;
selProvince.length=i+1;
}
function FillCitys(selCity,ProvinceCode)
{
//if the province is a direct-managed city, like Beijing, shanghai, tianjin, chongqin,hongkong, macro
//need not "请选择选项"
if(ProvinceCode=="110000"||ProvinceCode=="120000"||ProvinceCode=="310000"
||ProvinceCode=="810000"||ProvinceCode=="820000"||ProvinceCode=="500000")
count=0;
else
{selCity.options[0]=new Option("请选择",ProvinceCode);
count=1;}
for(i=0;i<Citys.length;i++)
{
if(Citys[i][0].toString().substring(0,2)==ProvinceCode.substring(0,2))
{
selCity.options[count]=new Option(Citys[i][1],Citys[i][0]);
count=count+1;
}
}
selCity.options[0].selected=true;
selCity.length=count;
}
function Province_onchange()
{
FillCitys(g_selCity,g_selProvince.value);
}
function InitCitySelect(selProvince,selCity)
{
//alert("begin");
g_selProvince=selProvince;
g_selCity=selCity;
selProvince.onchange=Function("Province_onchange();");
FillProvinces(selProvince);
Province_onchange();
}
function InitCitySelect2(selProvince,selCity,CityCode)
{
InitCitySelect(selProvince,selCity)
for(i=0;i<selProvince.length;i++)
{
if(selProvince.options[i].value.substring(0,2)==CityCode.substring(0,2))
{
selProvince.options[i].selected=true;
}
}
Province_onchange();
for(i=0;i<selCity.length;i++)
{
if(selCity.options[i].value==CityCode)
{
selCity.options[i].selected=true;
}
}
}
//-->
</script>
<form name="profile" method="post" action="*">
<Select id=province size=1 name=province>
<OPTION selected></OPTION>
</Select>
<Select id=city size=1 name=city>
<OPTION selected></OPTION>
</Select>
<SCRIPT language=javascript>
InitCitySelect(document.profile.province,document.profile.city);
</SCRIPT>
<input type="submit">
</form>
</body>
</html>
另存为html文件，然后用IE打开，即可看到效果。
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
其它值选回默认值的时候还是会触发itemchanged的
你问的应该是第一次加载页面的时候 一般在page_load进行处理即可
if(!IsPostBack){
//处理第二个dropdownlist的联动效果
}
你问的应该是第一次加载页面的时候 一般在page_load进行处理即可
if(!IsPostBack){
//处理第二个dropdownlist的联动效果
}
本回答被网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
在dropdownlist的数据绑定事件里调用联动方法就OK
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
不要绑定默认值为任何省市就可以了！
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
代码
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
更多回答（3）
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
