日期:2014-05-17  浏览次数:20468 次

asp.net 母版页中二级级联问题
二级级联的代码放在普通页面中就能够显示出来,没有错误。
但是放到母版页中就显示不出来了!

求各位高手帮忙解决!谢谢!

js代码如下:
JScript code

 var cityList = new Array( );  
     cityList['北京'] = ['朝阳区','东城区','西城区', '海淀区','宣武区','丰台区','怀柔','延庆','房山'];
     cityList['上海'] = ['宝山区','长宁区','丰贤区', '虹口区','黄浦区','青浦区','南汇区','徐汇区','卢湾区'];
     cityList['广州'] = ['天河区','海珠区','南沙区', '白云区','嘉湾区','越秀区','黄埔区','罗岗区','番寓区','花都区'];
     cityList['深圳'] = ['福田区', '罗湖区', '盐田区', '宝安区', '龙岗区', '南山区', '深圳周边'];
     cityList['重庆'] =['俞中区', '南岸区', '江北区', '沙坪坝区', '九龙坡区', '渝北区', '大渡口区', '北碚区', '巴南区', '万盛区', '涪凌', '江津'];
     cityList['天津'] = ['和平区', '河西区', '南开区', '河北区', '河东区', '红桥区', '塘古区', '开发区', '西青区', '津南区','东丽区'];
     
     
  function changeCity( )
  {
     var province=document.getElementById("province").value; 
     document.getElementById("city").options.length=0;
     for (var i in cityList) 
     {
            if (i == province) 
            {
                for (var j in cityList[i]) 
                {
                     document.getElementById("city").options.add(new Option(cityList[i][j], cityList[i][j]));
                }
            }
       }
     document.getElementById("city").options.selctIndex=0;
  }
  
  function loadAll( )
  { for (var i in cityList)  
       { document.getElementById("province").options.add(new Option(i, i)); 
        }
        document.getElementById("province").selectedIndex = 0; 
  }



asp.net普通页面中能够显示,代码如下:
HTML code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

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

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"/>
    <title>无标题页</title>

   <script src="JS/citys.js" type="text/javascript"></script>
  
</head>
<body>
    <form id="myform" runat="server">
         <select id="province" runat="server" onchange="changeCity()">
            <option>----省份----</option>
        </select>
        <select id="city" runat="server">
            <option>----城市----</option>
        </select>
        <script type="text/javascript">loadAll()</script>
     </form>
     </body>
</html>




asp.net母版页中就不能显示了,各位帮帮忙,代码如下:
HTML code

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" Title="无标题页" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">

    <script src="JS/citys.js" type="text/javascript"></script>
    
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

    <select id="province" runat="server" onchange="changeCity()">
        <option>----省份----</option>
    </select>
    <select id="city" runat="server">
        <option>----城市----</option>