📄 一个二级联动下拉框的jsp实现 - 逍遥游 -- it博客－中国最具人气的it博客－赛迪网it人家园.htm
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<DIV class=gray>2006年01月14日 11:43:11</DIV>
<H3>一个二级联动下拉框的jsp实现 </H3>
<TABLE class=blog-content>
<TBODY>
<TR>
<TD>
<P><%@ page contentType="text/html; charset=gb2312" language="java"
errorPage=""
%><BR><html><BR><head><BR><title>无标题文档</title><BR><script
language="JavaScript" type="text/JavaScript"><BR>var onecount;
<BR>onecount=0; <BR>subcat = new Array(); <BR><%
<BR>
Dao da =
new Dao();<BR>
List smalllist = da.listObjs("from ProductSmallsort
as c where c.active='Y' ");
<BR>
if(smalllist!=null){<BR>
for(int
j=0;j<smalllist.size();j++){<BR>
ProductSmallsort pb = (ProductSmallsort)
smalllist.get(j);<BR>
if (pb !=
null) {<BR>%><BR>subcat[<%=j %>] = new Array("<%=
pb.getName()%>","<%=pb.getSmallsortid()%>","<%=
pb.getProductBigsort().getBigsortid() %>"); <BR><% }} %>
<BR>onecount=<%=smalllist.size() %>; <BR><% }
%><BR><!--决定select显示的函数--> <BR>function changelocation(id)
<BR> { <BR> document.myform.smallid.length = 0; <BR> var
locationid=id; <BR> var i; <BR>
document.myform.smallid.options[0] = new Option('请选择产品小类','0');<BR>
for (i=0;i<onecount;i++) <BR> { <BR>
if (subcat<I>[2] == locationid) <BR> {
<BR>
document.myform.smallid.options[document.myform.smallid.length] = new
Option(subcat<I>[0],subcat<I>[1]); <BR> }
<BR> } <BR> }
<BR></script><BR><meta http-equiv="Content-Type"
content="text/html;
charset=gb2312"></head><BR><BR><body><BR><form action=""
method="post" name="myform"><BR><table width="100%"
><BR><tr><BR> <td width="20%"
align="right">大类：</td><BR> <td><BR>
<select name="bigid"
onChange="changelocation(document.myform.bigid.options[document.myform.bigid.selectedIndex].value)"><BR>
<option value="0" selected>请选择产品大类</option><BR><%
<BR>
Dao dao = new Dao();<BR>
List biglist =
dao.listObjs("from ProductBigsort as c where c.active='Y' ");
<BR>
if(biglist!=null){<BR>
for(int
i=0;i<biglist.size();i++){<BR>
ProductBigsort yy = (ProductBigsort) biglist.get(i);<BR>
if (yy != null) {<BR>%><BR>
<option value="<%=yy.getBigsortid() %>"><%=yy.getName()
%></option> <BR><% }}} %><BR>
</select><BR>
</td><BR></tr><BR><tr><BR> <td width="20%"
align="right">小类：</td><BR> <td><BR>
<% <BR> /*如果是修改的话，是这样的<BR> <select
name="smallid">
<BR>
<% if(smallid!=0&bigid!=0){ %><BR> <option
value="<%= smallid %>" selected><%= smallName
%></option><BR> <% } %><BR>
</select> <BR> */<BR>
%><BR> <select name="smallid" ><BR>
<option value="0" selected>请选择产品小类</option>
<BR> </select><BR>
</td><BR></tr><BR></table><BR></form><BR></body><BR></html><BR></P></I></I></I></TD></TR></TBODY></TABLE>
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<DIV>类别： <A
href="http://blog.ccidnet.com/blog-htm-do-list-uid-3900-type-blog-dirid-712.html">观注java技术</A>
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<H5 id=cdisplay style="DISPLAY: none">一共有 <SPAN id=sums>3</SPAN> 条评论</H5><SPAN
id=ajaxreply><A name=c0></A>
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<SCRIPT> commentIds.push('114119');</SCRIPT>
<A name=c114119></A>
<DL id=114119>
<DD class="comment-pic left"><IMG
src="一个二级联动下拉框的jsp实现 - 逍遥游 -- IT博客－中国最具人气的IT博客－赛迪网IT人家园.files/none.jpg"
width=40>
<DD><SPAN style="FONT-WEIGHT: bolder; FONT-SIZE: 12px">3楼 </SPAN><A
class="big b"
href="http://blog.ccidnet.com/blog-htm-do-showone-uid-3900-type-blog-itemid-18378.html#">[匿名]guest</A>
<SPAN class=gray>2006年12月21日 17:52:36</SPAN> Says: </DD>
<DD class=comment-content>
<DIV>能不能把例子的源代码传上来呀，我急用这个。谢谢了。</DIV></DD></DL>
<SCRIPT> commentIds.push('67724');</SCRIPT>
<A name=c67724></A>
<DL id=67724>
<DD class="comment-pic left"><IMG
src="一个二级联动下拉框的jsp实现 - 逍遥游 -- IT博客－中国最具人气的IT博客－赛迪网IT人家园.files/none.jpg"
width=40>
<DD><SPAN style="FONT-WEIGHT: bolder; FONT-SIZE: 12px">2楼 </SPAN><A
class="big b"
href="http://blog.ccidnet.com/blog-htm-do-showone-uid-3900-type-blog-itemid-18378.html#">[匿名]guest</A>
<SPAN class=gray>2006年07月21日 10:54:49</SPAN> Says: </DD>
<DD class=comment-content>
<DIV>现在用ajax的也比较多</DIV></DD></DL>
<SCRIPT> commentIds.push('41359');</SCRIPT>
<A name=c41359></A>
<DL id=41359>
<DD class="comment-pic left"><IMG
src="一个二级联动下拉框的jsp实现 - 逍遥游 -- IT博客－中国最具人气的IT博客－赛迪网IT人家园.files/none.jpg"
width=40>
<DD><SPAN style="FONT-WEIGHT: bolder; FONT-SIZE: 12px">1楼 </SPAN><A
class="big b"
href="http://blog.ccidnet.com/blog-htm-do-showone-uid-3900-type-blog-itemid-18378.html#">[匿名]guest</A>
<SPAN class=gray>2006年01月18日 10:49:03</SPAN> Says: </DD>
<DD class=comment-content>
<DIV>我也写了连动的东西，在Struts中的。觉得这玩意儿是够烦的。<BR>建议兄弟用Tag改写，不论是从代码阅览和维护的角度，都会好多<BR><BR>ArdorLeo<BR></DIV></DD></DL></SPAN><INPUT
id=commentid type=hidden value=41359 name=commentid>
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