ajax 的全国地址三级 选择菜单 无刷新 会显示Method Error 500 请大家帮忙调试一下

Question

ajax 的全国地址三级 选择菜单 无刷新  会显示Method Error 500 请大家帮忙调试一下 
net2.0 + sql2000
谢谢

Answer 1

<div>
        <asp:ScriptManager ID="ScriptManager1" runat="server"  />
         省: <asp:DropDownList ID="ddlprovince" runat="Server"> 
         <asp:ListItem Value="">省分</asp:ListItem>
        </asp:DropDownList> 
        市<asp:DropDownList ID="ddlcity" runat="server">
         <asp:ListItem Value="">市</asp:ListItem>
        </asp:DropDownList>
        区或县:
        <asp:DropDownList ID="ddlarea" runat="server">
          <asp:ListItem Value="">县</asp:ListItem>
        </asp:DropDownList>
       
    </div>
    </form>
    <script type="text/javascript">
      function provinceChange(obj)
       {
         var city=document.getElementById("ddlcity");
         if(obj.value.length>0)
          {
            var webFileUrl="?province="+obj.value;
            BindData(city,webFileUrl);
          }
         else
          {
            city.length=1;
          }
       }
      function cityChange(obj)
       {
         var borough = document.getElementById("ddlarea");            
            if (obj.value.length > 0)
            {
                //传递参数
                var webFileUrl = "?City=" + obj.value;
                //绑定区
                BindData(borough,webFileUrl);
            }
            else
            {
                borough.length = 1;
            }
       }
      function BindData(control,Url)
       {
           var xmlHttp = GetXmlHttp();
            xmlHttp.open("POST", url, false);
            xmlHttp.send("");
            //得到结果
            var result = xmlHttp.responseText;
            if(result != "")
            {
                //构造XmlDocument
                var xmlDoc = new ActiveXObject("MSXML2.DOMDocument");
                var flag = xmlDoc.loadXML(result);
                //得到结果
                var nodes = xmlDoc.selectNodes("//CodeNamePair[@code]");
                //清空原有记录
                control.length = 0;
                //重新绑定
                for(var i = 0 ; i < nodes.length;i++)
                {
                    var node = nodes[i];
　　                control.options.add(new Option(node.attributes[1].value,node.attributes[0].value));
                }
            }
            else
            {
                //
            }
       }
    </script>
写了一些脚本。。其它的一些数据绑定操作自己搞定

Answer 2

比较菜,liuyun1987 :你的是无刷新的吗?还要用到XML吗?不太会..谢谢
大家有没有时间,帮忙下一个调式一下吧,里面代码不会复杂 谢

Answer 3

http://singlepine.cnblogs.com/articles/257954.html
代码都有了