一个select两级下拉菜单列表代码,哪出错了,高手时来指点一下 脚本在客户端执行,asp代码是在页面申请时生成静态内容后发到客户端。在执行change方法时是不会动态从服务器端获取更新的。你先了解一下http机制 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 数据加载有两种办法:一次性加载和异步加载一般要根据传输速度和数据量大小来定用哪种方法。联动的代码就很多了,给你个例子:<html><head><script language=javascript>var arr="浙江|江苏|安徽|江西";var arr0 = "杭州|宁波|温州|绍兴"; //这些数据可以从数据库中取得var arr1 = "南京|苏州|无锡|常州";var arr2 = "合肥|翕县|黄山|祁门";var arr3 = "南昌|九江|赣州|上饶"; var arr00 = "杭州A区|杭州B区"; var arr01 = "宁波A区|宁波B区"; var arr02 = "温州A区|温州B区"; var arr03 = "绍兴A区|绍兴B区"; var arr10 = "南京A区|南京B区"; var arr11 = "苏州A区|苏州B区"; var arr12 = "无锡A区|无锡B区"; var arr13 = "常州A区|常州B区"; var arr20 = "合肥A区|合肥B区"; var arr21 = "翕县A区|翕县B区"; var arr22 = "黄山A区|黄山B区"; var arr23 = "祁门A区|祁门B区"; var arr30 = "南昌A区|南昌B区"; var arr31 = "九江A区|九江B区"; var arr32 = "赣州A区|赣州B区"; var arr33 = "上饶A区|上饶B区"; //alert(eval("arr"+2+1));function AddOptions(dltObj,arrObj){ dltObj.innerHTML=""; var arrLocation=arrObj.split("|"); for(var i=0;i<arrLocation.length;i++){ var opt=document.createElement("OPTION"); dltObj.add(opt); opt.value=i; opt.text=arrLocation[i]; }}function ShowValue(){ var dltAr=document.getElementById("dltArea"); var hidId=document.getElementById("OutValue"); var txtText=document.getElementById("txtOutText"); hidId.value=dltAr.options[dltAr.selectedIndex].value; txtText.value=dltAr.options[dltAr.selectedIndex].text;}function init(){ AddOptions(dltProvince,eval('arr')); AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex)); AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex)); ShowValue();}</script></head><body onLoad="init();"><table width="300" cellpading="0" cellspacing="0" border="2"><tr> <td width="100"><select id="dltProvince" onchange="AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex));AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));ShowValue();" style="width:100%"></select></td> <td width="100"><select id="dltCity" onchange="AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));ShowValue();" style="width:100%"></select></td> <td width="100"><select id="dltArea" style="width:100%" onchange="ShowValue()"></select></td> <td width="100"> <input type="hidden" id="OutValue" value=""> <input type="text" id="txtOutText" style="width:100%"> </td></tr></table></body></html>关于日期的常见操作http://community.csdn.net//Expert/TopicView2.asp?id=4360247&datebasetype=nowjs FAQ贴http://community.csdn.net//Expert/TopicView2.asp?id=4356360&datebasetype=nowDHTML手册,js手册,dom手册下载http://community.csdn.net//Expert/TopicView2.asp?id=4356325&datebasetype=now 页面中引用的js文件是否每次都下载? java树形菜单案例 Automation 服务器不能创建对象 的提示 如何撤消SELECT控件列表项。 怎样才可以重载js文件 关于更改页面本身的宽度问题,能实现吗? 关于JavaScript的问题! 兄台们:如何通过javascript屏蔽鼠标右键? 怎么样用javascript页运行时,调用dos命令??? jquery post 的传值问题 怎样实现鼠标点击图片变换另一张再点一下就回来 JS右键怎样实现多级菜单
一般要根据传输速度和数据量大小来定用哪种方法。联动的代码就很多了,给你个例子:
<html>
<head>
<script language=javascript>
var arr="浙江|江苏|安徽|江西";var arr0 = "杭州|宁波|温州|绍兴"; //这些数据可以从数据库中取得
var arr1 = "南京|苏州|无锡|常州";
var arr2 = "合肥|翕县|黄山|祁门";
var arr3 = "南昌|九江|赣州|上饶"; var arr00 = "杭州A区|杭州B区";
var arr01 = "宁波A区|宁波B区";
var arr02 = "温州A区|温州B区";
var arr03 = "绍兴A区|绍兴B区"; var arr10 = "南京A区|南京B区";
var arr11 = "苏州A区|苏州B区";
var arr12 = "无锡A区|无锡B区";
var arr13 = "常州A区|常州B区"; var arr20 = "合肥A区|合肥B区";
var arr21 = "翕县A区|翕县B区";
var arr22 = "黄山A区|黄山B区";
var arr23 = "祁门A区|祁门B区"; var arr30 = "南昌A区|南昌B区";
var arr31 = "九江A区|九江B区";
var arr32 = "赣州A区|赣州B区";
var arr33 = "上饶A区|上饶B区"; //alert(eval("arr"+2+1));
function AddOptions(dltObj,arrObj)
{
dltObj.innerHTML="";
var arrLocation=arrObj.split("|");
for(var i=0;i<arrLocation.length;i++){
var opt=document.createElement("OPTION");
dltObj.add(opt);
opt.value=i;
opt.text=arrLocation[i];
}
}
function ShowValue(){
var dltAr=document.getElementById("dltArea");
var hidId=document.getElementById("OutValue");
var txtText=document.getElementById("txtOutText");
hidId.value=dltAr.options[dltAr.selectedIndex].value;
txtText.value=dltAr.options[dltAr.selectedIndex].text;}
function init(){
AddOptions(dltProvince,eval('arr'));
AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex));
AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));
ShowValue();
}
</script>
</head>
<body onLoad="init();">
<table width="300" cellpading="0" cellspacing="0" border="2">
<tr>
<td width="100"><select id="dltProvince" onchange="AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex));AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));ShowValue();" style="width:100%"></select>
</td>
<td width="100"><select id="dltCity" onchange="AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));ShowValue();" style="width:100%"></select>
</td>
<td width="100"><select id="dltArea" style="width:100%" onchange="ShowValue()"></select></td>
<td width="100">
<input type="hidden" id="OutValue" value="">
<input type="text" id="txtOutText" style="width:100%">
</td>
</tr>
</table>
</body>
</html>
关于日期的常见操作
http://community.csdn.net//Expert/TopicView2.asp?id=4360247&datebasetype=now
js FAQ贴
http://community.csdn.net//Expert/TopicView2.asp?id=4356360&datebasetype=now
DHTML手册,js手册,dom手册下载
http://community.csdn.net//Expert/TopicView2.asp?id=4356325&datebasetype=now