ASP无级分类解决方案

<%
db="db1.mdb"
Set Licns = Server.CreateObject("ADODB.Connection") 
Licnsstr="DBQ="+server.mappath(db)+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};" 
On Error Resume Next
Licns.open Licnsstr
If Err Then
err.Clear
Set Licns = Nothing
Response.Write "数据库连接出错，请检查连接字串。"
Response.End
End If
action=request.querystring("action")

if action="tyadd" then
＇所有父级,级别,类型
name=request.form("name")＇名称,
pareid=request.form("pareid")
orders=request.form("orders")
if pareid<>0 then
retylist1="select * from ty where id="&pareid
set retylist01=Licns.execute(retylist1)
depth=retylist01("depth")+1
parestr=retylist01("parestr")
rootid=retylist01("rootid")
retylist01=close:set retylist01=nothing
else
depth=0
parestr="0"
set maxrootid=Licns.execute("select max(rootid) from ty")
rootid=maxrootid(0)+1
maxrootid.close:set maxrootid=nothing
if isnull(rootid) then rootid=1
end if
set rs=server.createobject("adodb.recordset")
rs.open "ty",Licns,1,3
rs.addnew
rs("name")=name
rs("pareid")=pareid
rs("depth")=depth
rs("orders")=orders
rs("rootid")=rootid
rs("child")=0
rs.update
rs("parestr")=rs("id")&","&parestr ＇所有父级
rs.update
rs.close
Licns.execute("update ty set child=child+1 where id="&pareid) ＇若栏目增加子栏目,则+1
response.redirect "index.asp"
end if
taadd01=""
taadd01=taadd01+"<b><font color=red>[无级分类示范]</font></b>制作:默飞 QQ:33224360 更多下载:<a href=http://mofei.xinxiu.com>http://mofei.xinxiu.com</a>"
taadd01=taadd01+"<form method=post name=mofeiform action=＇?action=tyadd＇>"
taadd01=taadd01+"名称:<input name=name type=text> 顺序:<input name=orders type=text size=6>"
taadd01=taadd01+"<select name=pareid>"
＇栏目列表,列出属于
set tylist01=Licns.execute("select * from ty")
do while not tylist01.eof
taadd01=taadd01+"<option value=＇"&tylist01("id")&"＇>"&tylist01("name")&"</option>"
tylist01.movenext
loop
tylist01.close
set tylist01=nothing
taadd01=taadd01+"<option value=＇0＇>根目录</option>"
taadd01=taadd01+"</select>"
taadd01=taadd01+"<input type=submit name=submit01 value=＇增加＇ disabled> 由于是演示,增加按钮被我屏蔽了."
taadd01=taadd01+"</form>"
response.write taadd01
response.write "<table width=100% border=0 align=center cellpadding=2 cellspacing=0>"
sqllist="select id,name,pareid,depth,child from ty order by rootid,orders"
＇栏目ID-0,名称-1,父级-2,级别-3,子集-4
set rslist = Licns.execute(sqllist)
SQL=rslist.getrows(-1)
For iii=0 To Ubound(SQL,2) ＇根据父级来循环
response.write "<tr height=28><td>"
if SQL(3,iii)>0 then ＇若不是根目录,输出空格,级别后,加空格
for i=1 to SQL(3,iii)
Response.Write " " ＇级别>0后,加空格
next
end if
if SQL(4,iii)>0 then ＇若存在子集,换图标了
Response.Write " + " ＇明显,存在着子集的,
else
Response.Write " - " ＇输出不存在子集的
end if
if SQL(2,iii)=0 then ＇如果是根目录的话
Response.Write "<b>" ＇如果是大类,就用粗体显示了
end if
Response.Write SQL(1,iii) ＇这个自然是名称了
if SQL(4,iii)>0 then ＇若有子集的话,输出了.
Response.Write "("
Response.Write SQL(4,iii) ＇输出还有多少子集了
Response.Write ")"
end if
response.write "</td></tr>"
Next
response.write "</table>"
response.write "<br><br><br><br><br><br><br><br>"
%>