• <ruby id="5koa6"></ruby>
    <ruby id="5koa6"><option id="5koa6"><thead id="5koa6"></thead></option></ruby>

    <progress id="5koa6"></progress>

  • <strong id="5koa6"></strong>
  • javascript 實現下拉列表連動,提示:Array not defined

    發表于:2007-06-30來源:作者:點擊數: 標簽:
    有一個應用,要求一個下拉列表(class1)的變化觸發另一個依賴列表(class2)的變化。參照《下拉框連動( 數據庫 版)》,有以下程序片段: % sql = select id, name, substring(id,1,2) bigclass from classone where type=@#1@# order by id set rs = session
    有一個應用,要求一個下拉列表(class1)的變化觸發另一個依賴列表(class2)的變化。參照《下拉框連動(數據庫版)》,有以下程序片段:

    <%   sql = "select id, name, substring(id,1,2) bigclass from classone where type=@#1@# order by id"
       set rs = session("conn").execute(sql)
    %>

    <script language="javascript">
       var onecount = 0;
       subcat = new array();    <---------提示:array 未定義------------

       <%    count = 0
       do while not rs.eof      <--------- rs 已經是前面定義的recordset
       %>
       subcat[<%=count%>] = new array("<%=trim(rs("name"))%>","<%=trim(rs("bigclass"))%>","<%=trim(rs("id"))%>");
       <%    count = count+1
          rs.movenext
          loop
          rs.close
          set rs = nothing
       %>
       onecount = <%=count%>

       function chgcls(){
          for (var i=document.search.class2.options.length; i>0; i--){
             document.search.class2.options[i]=null;
          }
          for (i = 0; i<onecount; i++){
             bigclass = "@#"&subcat[i][1]&"@#";
             if (document.search.class1.options[document.search.class1.selectedindex].value==bigclass){
             document.search.class2.options[document.search.class2.length]=new option(subcat[i,0],subcat[i,2]);
             }
          }
       }
    </script>

    下面是調用該函數的HTML語句:
    。。。
    <form id="search" name="search" method="post" action="query.asp">
    <select name="class1" size=1 width=16 onchange="chgcls(document.search.class1.options[document.search.class1.selectedIndex].value)">
       <%
       Response.Write "<option selected value=@#@#></option>"
       sql="select id,name from classone where substring(id,3,1)=@#@# order by id"            @#取設備代碼的前兩位
         set menurs=session("conn").execute(sql)
         do while not menurs.eof
            Response.Write "<option value="&trim(menurs("id"))&">"&trim(menurs("name"))&"</option>"
            menurs.movenext
         loop
         menurs.close
         set menurs=nothing   
        %></select>

       <select name="class2" size=1 width=16>
       <option selected value=""></option>
       </select>
    .....
    </form>

    問題1:我在加入下列JavaScript 后,“array 未定義”不再出現,是否是JAVASCRIPT 本身的要求,還是與瀏覽器的版本有關?(我用IE4)
    function array() {    
       this.length = array.arguments.length
       for (var i = 0; i< this.length; i++)      this[i+1] = array.arguments[i];   
    }


    問題2:但是卻提示:
        document.search.class1.options[...].value 不是對象
        為什么?
    .......

    原文轉自:http://www.kjueaiud.com

    老湿亚洲永久精品ww47香蕉图片_日韩欧美中文字幕北美法律_国产AV永久无码天堂影院_久久婷婷综合色丁香五月

  • <ruby id="5koa6"></ruby>
    <ruby id="5koa6"><option id="5koa6"><thead id="5koa6"></thead></option></ruby>

    <progress id="5koa6"></progress>

  • <strong id="5koa6"></strong>