Test if file exists before displaying with XMLHTTP

23 Mar 2006 11:01 AM

Giles

I have a left menu that is accessed and displayed via XMLHTTP (it resides on
the same server). Some sections of the web site don't have a "menu.asp", so
a "Page Not Found" page is returned, which doesn't look great in the menu
column.. Is there a way to know if a page exists before using
xml.responseText to pull it?
(apart from checking the actual text of the returned page to see if it
contains error-like words)
Thanks
Giles
(PS using xmlhttp instead of server.execute as the menu-page needs
processing before displaying)

23 Mar 2006 11:27 AM

Slim

Set fso = CreateObject("Scripting.FileSystemObject")
   If (fso.FileExists(filespec)) Then
      msg = filespec & " exists."
   Else
      msg = filespec & " doesn't exist."
   End If

if you do not know the physical path you can try this

Set pc = Server.CreateObject("MSWC.PermissionChecker")

pc.HasAccess(url)

if you have permissions the file must exist

I have not checked this, but its worth a try

Show quote

"Giles" <giles@nospam.com> wrote in message
news:OkkGXjmTGHA.4976@TK2MSFTNGP11.phx.gbl...
>I have a left menu that is accessed and displayed via XMLHTTP (it resides
>on the same server). Some sections of the web site don't have a "menu.asp",
>so a "Page Not Found" page is returned, which doesn't look great in the
>menu column.. Is there a way to know if a page exists before using
>xml.responseText to pull it?
> (apart from checking the actual text of the returned page to see if it
> contains error-like words)
> Thanks
> Giles
> (PS using xmlhttp instead of server.execute as the menu-page needs
> processing before displaying)
>

23 Mar 2006 12:24 PM

Anthony Jones

Show quote

"Giles" <giles@nospam.com> wrote in message
news:OkkGXjmTGHA.4976@TK2MSFTNGP11.phx.gbl...
> I have a left menu that is accessed and displayed via XMLHTTP (it resides
on
> the same server). Some sections of the web site don't have a "menu.asp",
so
> a "Page Not Found" page is returned, which doesn't look great in the menu
> column.. Is there a way to know if a page exists before using
> xml.responseText to pull it?
> (apart from checking the actual text of the returned page to see if it
> contains error-like words)
> Thanks
> Giles
> (PS using xmlhttp instead of server.execute as the menu-page needs
> processing before displaying)
>
>

Just test the XMLHTTP.Status property after attempting to fetch it. If it's
404 the file didn't exist and the responseText will contain the sites 404
content.

Anthony