ASP+XML的双下拉选单的连动问题-在线等待
网上找的一段代码
第一个下拉框可以显示,但是在调用onchange="ChooseCity()"时就死翘翘了
帮忙看一下,我是对XML一点也不懂
数据库可以到http://wwww.abszreo.com/tree.mdb下栽
表Citys字段:State、City
看程序:
代码:
CitySelect.asp
<%@ LANGUAGE="vbscript" %>
<%
strPathInfo = Request.ServerVariables("PATH_INFO")
strPathInfo = "http://" & Request.ServerVariables("SERVER_NAME") & Left(strPathInfo,InstrRev(strPathInfo,"/"))
set conn=server.createobject("adodb.connection")
DBPath = Server.MapPath("tree.mdb")
conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq=" & DBPath
Set RS = Conn.Execute("SELECT DISTINCT state FROM citys")
arrPr = RS.GetRows()
RS.Close
Set RS = Nothing
Conn.Close
Set Conn = Nothing
%>
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=gb_2312-80">
<TITLE></TITLE>
<SCRIPT language=javascript>
<!--
function ChooseCity()
{
//Clear City List
for(var i=form1.SelCity.options.length-1;i>=0;--i)
{
form1.SelCity.options.remove(i)
}
var sState = form1.SelState.options(form1.SelState.selectedIndex).value;
var oXMLDoc = new ActiveXObject('MSXML');
sURL = '<%=strPathInfo%>XMLCity.asp?State=' + sState;
oXMLDoc.url = sURL;
var oRoot=oXMLDoc.root;
if(oRoot.children != null)
{
for(var i=0;i<oRoot.children.length;++i)
{
oItem = oRoot.children.item(i);
sName = oItem.text;
var oOption = document.createElement('OPTION');
oOption.text = sName;
oOption.value = sName;
form1.SelCity.options.add(oOption);
}
}
}
-->
</SCRIPT>
</HEAD>
<BODY>
<FORM action="" method="post" id="form1" name="form1">
<SELECT name="SelState" id="SelState" onchange="ChooseCity()">
<%For i = LBound(arrPr,2) To UBound(arrPr,2)%>
<OPTION value="<%=arrPr(0,i)%>"><%=arrPr(0,i)%></OPTION>
<%Next%>
</SELECT>
<SELECT name="SelCity" id="SelCity">
</SELECT>
</FORM>
</BODY>
</HTML>
--------------------------------------------------------------------------
XMLCity.asp
<%@ LANGUAGE="VBSCRIPT" %>
<%
sState = Request.QueryString("State")
set conn=server.createobject("adodb.connection")
DBPath = Server.MapPath("tree.mdb")
conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq=" & DBPath
Set RS = Conn.Execute("SELECT city FROM citys WHERE state='" & sState & "'")
arrCity = Rs.GetRows()
%>
<?xml version="1.0" encoding="gb2312" ?>
<citys>
<%For i = LBound(arrCity,2) To UBound(arrCity,2)%>
<city><%=arrCity(0,i)%></city>
<%Next%>
</citys>