There are two ways to delete data in batches under ASP, which also include the function of deleting attachments. Method one:
Copy the code code as follows:
id=request.form(checkbox)
id=Split(id,,)
shu=0
for i=0 to UBound(id)
sql=select * from jiang_fname where id=&id(i)
set rs=conn.execute(sql)
if not rs.eof then
delete_file(rs(fname))
end if
rs.close
set rs=nothing
sql=delete from jiang_fname where id=&id(i)
conn.execute sql,shu1
shu=shu+1
next
if shu>0 then
response.Write(<script>alert('Deletion successful');location.href='&url&';</script>)
else
response.write(<Script>alert('Deletion failed');javascript: history.back();</script>)
end if
conn.close
set conn=nothing
Method 2: Cleverly use the in keyword to achieve batch deletion of data
managenews.asp
Copy the code code as follows:
<!--#include file=conn.asp-->
<%'I won’t say more about the database connection file%> <html>
<head>
<title>Manage News</title>
<meta http-equiv=Content-Type content=text/html; charset=gb2312>
<link rel=stylesheet href=../index/style.css type=text/css>
<script>
function del () //Function used to determine whether the record is selected
{
var flag=true;
var temp=;
var tmp;
if((document.form1.answer.length+)==undefined) {tmp=1}else{tmp=document.form1.answer.length}
if (tmp==1){
if (document.form1.answer.checked){
flag=false;
temp=document.form1.answer.value
}
}else{
for (i=0;i<document.form1.answer.length;i++) {
if (document.form1.answer[i].checked){
if (temp==){
flag=false;
temp=document.form1.answer[i].value
}else{
flag=false;
temp = temp +,+ document.form1.answer[i].value
}
}
}
}
if (flag){ alert(Sorry, you have no choice yet!)}
else{ name=document.form1.name.value
//alert(name)
if (confirm(Do you really want to delete?)){
window.location=delnews.asp?id= + temp;
}
}
return !flag;
}
</script>
</head>
<body>
<script language=Javascript>
function checkall(all)//Function used to determine all selected records
{
var a = document.getElementsByName(answer);
for (var i=0; i<a.length; i++) a[i].checked = all.checked;
}
</script>
<%
set rs=server.createobject(adodb.recordset)
sql=select * from news order by addtime desc
rs.open sql,conn,1,3 %>
<% if rs.eof then %>
<table width=50% border=0 align=center ID=Table2>
<tr>
<td align=center>
No news!
</tr>
</table>
<% else %>
<form method=POST id=form1 name=form1>
<table width=90% border=0 align=center class=tabDocborder ID=Table3>
<tr>
<td>
<table width=80% align=center id=TabDocMain border='1' cellspacing='0' cellpadding='0' bordercolorlight='#82b4dd' bordercolor='#b6d3eb' class=TabDocMain>
<thead>
<tr>
<td colspan=7 align=center>
News Management Center
</td>
</tr>
</thead>
<tbody>
<tr>
<td align=center>
delete box
</td>
<td align=center>
News headline
</td>
<td align=center>
Release time
</td>
<td align=center>
manage
</td>
</tr>
<%
do while not rs.eof
%>
<tr>
<td align=center><input type=checkbox name=answer value=<%=rs(id)%> ID=Checkbox1>
</td>
<td align=left><%If Len(rs(title))<=30 Then%><%=rs(title)%><%else%>
<%=(Left(rs(title),30))%>...
<%end if %></td>
<td align=left><%=rs(addtime)%></td>
<td align=center><a href=editnews.asp?id=<%=rs(id)%>>Edit</a></td>
</tr>
</tbody>
<%
rs.movenext
loop
%>
<tr>
<td colspan=7 align=center>
<input type=checkbox name=chkall value=on onclick=checkall(this) ID=Checkbox2>Select all displayed news
<input type=button name=btnDelete value=Delete style='font-family: 宋体; font-size: 9pt;' onclick=del() ID=Button1>
</td>
</tr>
</table>
</form>
</td>
</tr>
<%end if%>
</table>
<% set rs=nothing
conn.close
set conn=nothing
%>
</body>
</html>
delnews.asp file
Copy the code code as follows:
<!--#include file=conn.asp-->
<%
arrdel=Request(id)
'Response.Write arrdel
sql=delete from news where id in (&arrdel&)
'Response.Write sql
conn.Execute sql
set conn=nothing
response.write<SCRIPT language=JavaScript>alert('Delete successfully!');
response.writejavascript: history.go(-1)</SCRIPT>
response.end
%>