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开发平台：
ASP/ASPX

List_Add.asp：源码内容
							<!--#include file="../../inc/conn.asp"-->
<%
dim rs,sql
sql="select * from nclass"
set rs=conn.execute(sql)
%>
<script language = "JavaScript">
var onecount;
onecount=0;
subcat = new Array();
<%
dim count
count=0
do while not rs.eof 
%>
subcat[<%=count%>] = new Array("<%= trim(rs("nclassname"))%>","<%= trim(rs("classid"))%>","<%= trim(rs("id"))%>");
<%
count = count + 1
rs.movenext
loop
rs.close
%>
onecount=<%=count%>;
function changelocation(locationid)
    {
    document.form1.nclassid.length = 0; 
    var locationid=locationid;
    var i;
    for (i=0;i < onecount; i++)
        {
            if (subcat[i][1] == locationid)
            { 
                document.form1.nclassid.options[document.form1.nclassid.length] = new Option(subcat[i][0], subcat[i][2]);
            }        
        }
        
    } 
	
</script>
<LINK REL="stylesheet" HREF="../images/style.css" TYPE="text/css"> <META content="text/html;charset=gb2312" http-equiv="Content-Type">
<style type="text/css">
<!--
.style1 {
	color: #FFFFFF;
	font-weight: bold;
}
-->
</style>
<form name="form1" method="post" action="List_Save.asp" enctype="multipart/form-data">
  <table width="100%" border="0" align="center" cellpadding="0" cellspacing="1" bordercolorlight="#000000" bordercolordark="#ffffff" bgcolor="#660000">
    <tr bgcolor="#23458B"> 
      <td height="25" colspan="2"> 
      <div align="center" class="style1">信息添加</div>      </td>
    </tr>
    <tr> 
      <TD WIDTH="21%" height="12" bgcolor="#FFFFFF"> 
      <div align="right"><FONT COLOR="#FF0000"> * </FONT>产品货号：</div></TD>
      <td width="79%" height="12" bgcolor="#FFFFFF"> 
      <input type="text" name="hh" size="40">      </td>
    </tr>	
    <tr> 
      <TD WIDTH="21%" height="12" bgcolor="#FFFFFF"> 
      <div align="right"><FONT COLOR="#FF0000"> * </FONT>产品名称：</div></TD>
      <td width="79%" height="12" bgcolor="#FFFFFF"> 
      <input type="text" name="title" size="50">      </td>
    </tr>
    <tr>
      <TD height="13" bgcolor="#FFFFFF"><div align="right"><FONT COLOR="#FF0000">* </FONT>产品类别：</div></TD>
      <td width="79%" height="13" bgcolor="#FFFFFF"><%
	    sql="select * from class"
	    set rs=conn.execute(sql)
	    if not rs.eof then
	    %>一类：
        <select name="classid" onChange="changelocation(document.form1.classid.options[document.form1.classid.selectedIndex].value)">
          <option selected value="<%=trim(rs("id"))%>"><%=trim(rs("classname"))%></option>
          <%
		dim selclass
	    selclass=rs("id")
	    rs.movenext
	    %>
          <%do while not rs.eof%>
          <option value="<%=rs("id")%>"><%=rs("classname")%></option>
          <%rs.movenext
        loop
		rs.close
        %>
        </select>
        二类：
        <select name="nclassid">
          <%
	    sql="select * from nclass where classid="&selclass&" "
	    set rs=conn.execute(sql)
     	if not(rs.eof and rs.bof) then
	    do while not rs.eof%>
          <option value="<%=rs("id")%>"><%=rs("nclassname")%></option>
          <% rs.movenext
	    loop
    	end if	
        rs.close
    	%>
        </select>
        <%else%>
        添加类别
      <%end if%>&nbsp;</td>
    </tr>
    <tr> 
      <TD WIDTH="21%" height="25" bgcolor="#FFFFFF"> 
      <div align="right"><FONT COLOR="#FF0000">*</FONT> 产品信息：</div></TD>
      <td width="79%" height="25" bgcolor="#FFFFFF"><IFRAME ID="eWebEditor1" SRC="../eWebEditor/ewebeditor.asp?id=content&style=s_light" FRAMEBORDER="0" SCROLLING="no" WIDTH="630" HEIGHT="420"> 
        </IFRAME>
      <input name="content" type="hidden" id="content"></td>
    </tr>
    <tr> 
      <TD WIDTH="21%" height="12" bgcolor="#FFFFFF">
      <div align="right"><FONT COLOR="#FF0000">*</FONT> 产品图片(大)：</div></TD>
      <td width="79%" height="12" bgcolor="#FFFFFF">
      <input type="file" name="file" size="35">      </td>
    </tr>
    <tr> 
      <td height="25" colspan="2" bgcolor="#FFFFFF"> 
        <div align="center"> 
          <input type="submit" name="Submit" value="添加">
          <input type="button" value="取消" onClick="history.go(-1)">
          <input type="hidden" name="operation" value="add">
      </div>      </td>
    </tr>
  </table>
  <table width="75%" border="0" cellspacing="0" cellpadding="0" align="center" height="34"> 
<tr> <td> <div align="center">说明：<font color="#FF0000">*</font> 为必须填写的内容</div></td></tr> 
</table></form>

						