级联下拉选择框

Posted on 2009-06-11 14:01 飞思达工作室 阅读(206) 评论(0)  编辑  收藏

<%
db="db1.mdb"
Set conn = Server.CreateObject("ADODB.Connection")
connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath(db)
'如果你的服务器采用较老版本Access驱动,请用下面连接方法
'connstr="driver={Microsoft Access Driver (*.mdb)};dbq=" & Server.MapPath(db)
conn.Open connstr
%>
<html>
<body>
<form name="userset">
<!— group 的下拉列表-------------->
  <select name="sltGroupID" onChange="change_select(document.userset.sltGroupID.options[this.selectedIndex].value)" size="1">
  <option value="0" selected>用户组……</option>
 <%
sql1="select * from rsGroup"
set rs1=conn.Execute(sql1)
 rs1.MoveFirst
  While Not rs1.EOF
%>
<option value="<%=rs1(0)%>"><%=rs1(1)%></option>
<%
      rs1.MoveNext
   Wend
%>
  </select>
  <!— user 的下拉列表-------------->
  <select name="sltUserID" size="1">
  <option value="0" selected>用户……</option>

  </select>
</form>

<script language = "JavaScript">
  //读入 rsUser的数据
 arrSelect=new Array();
arrSelect[0] = new Array("用户……",0,0)
<%
sql2="select * from rsUser"
Set rs2= Server.CreateObject("ADODB.Recordset")
rs2.Open sql2,conn,3,2
rcount=rs2.RecordCount
%>
<%=rcount%>
<%
 rs2.MoveFirst
 for i=1 to rcount
%>
arrSelect[<%=i%>]=new Array("<%=rs2(2)%>","<%=rs2(1)%>","<%=rs2(0)%>");
<%
      rs2.MoveNext
 next
%>

  //更新 user 下拉列表的函数
function change_select(selvalue)  


 document.userset.sltUserID.length=0;  
 var i;
 for(i=0;i<arrSelect.length;i++) 
 {
  if(arrSelect[i][1]==selvalue) 
  {
  var newoption=new Option(arrSelect[i][0],arrSelect[i][2]);
  document.userset.sltUserID.add(newoption);
  }
 }
} </script>

</body>
</html>


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