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utilizzazione di un db
paginazione: ASP ricorsiva
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</div></head>
<% PageNo = request("page")
If PageNo="" then
PageNo=1
End If %>
]]>
apertura del db
<![CDATA[
<%
set conn = server.createobject("adodb.connection")
conn.open "guestbook"
sqlstmt = "SELECT * from Guestbook ORDER BY Date DESC"
Set rs = Server.CreateObject("ADODB.Recordset")
rs.Open sqlstmt, conn, 3, 3
rs.Pagesize=10
rs.absolutepage=PageNo %>
' valori a disposizione
TotalRecs = rs.recordcount
TotalPages = cInt(rs.pagecount)
]]>
messaggi
<![CDATA[
If PageNo = 1 then
response.write "ci sono "
response.write TotalRecs & " righe in "
response.write TotalPages & " pagine"
End If
If rs.eof then
response.write "non ci sono righe."
response.end
End If
]]>
blocco di righe (con interessanti controlli)
<![CDATA[
x = 0
' visualizziamo 10 righe sulla pagina
For x = 1 to 10
If rs.eof then
Exit For
Else
When = rs("Date")
Name = rs("Name")
' togliamo le fastidiose doppie virgolette
Name = Replace(Name,"''","'")
City = rs("City")
State = rs("State")
Country = rs("Country")
Email = rs("Email")
URL = rs("URL")
' verifichiamo un campo vuoto
If IsEmpty(URL) or URL = "" then
Link = "no URL given"
Else
Link = "<a href='" & URL & "'>" & URL & "</a>"
End If
Comments = rs("Comments")
Comments = replace(Comments, "''", "'")
Start = rs("Date")
%>
<table width=600 border=0 cellpadding=0 cellspacing=0>
<tr><td colspan=3><font face="arial" size=2><%= When %></td></tr>
<tr><td colspan=3 bgcolor="#C5BE60"><font face="arial" size=2 color="#000000"><b><%= Comments %></b></font></td></tr>
<tr><td width=125 valign="top"><font face="arial" size=1>
<% If IsEmpty(Email) or Email="" then
response.write(Name)
Else
response.write "<a href='mailto:" & Email & "'>" & Name & "</a>"
End If
%> </font></td>
<td width=200 valign="top"><font face="arial" size=1><i><%= City %> <%= State %> <%= Country %></i></td>
<td width=275 align="right" valign="top">
<font face="arial" size=1><%= Link %></font></td></tr>
</table>
<%
rs.MoveNext
End If
Next
%>
]]>
mettiamo i bottoni di navigazione
(lingo, ma controlla anche prima e ultima)
<![CDATA[
response.write "<table width=300 border=0><tr>"
response.write "<td align='center'>"
' we don't want "Previous" on the first page so we'll do this
If PageNo > 1 then
response.write "<form method='post' action='default.asp'>"
response.write "<input type='hidden' name='Page' value='" & PageNo-1 & "'>"
response.write "<font face='arial' size=2>"
response.write "<input type='submit' value='<< Prev'></form>"
Else
response.write " "
End If
response.write "</td><td align='center'>"
' we don't want "Next" on the last page so we'll do this
If NOT rs.eof then
response.write "<form method='post' action='default.asp'>"
response.write "<input type='hidden' name='Page' value='" & PageNo+1 & "'>"
response.write "<font face='arial' size=2>"
response.write "<input type='submit' value='Next >>'></form>"
Else
response.write " "
End If
response.write "</td></tr></table>"
]]>
e, finalmente, chiudiamo
<![CDATA[
conn.close
set conn = nothing
%>
]]>
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