Check if Image exists

holty · 10-13-2003, 11:19 AM

Hi,

I'm passing through a customers id through a form.

I have images stored of the customer named by their id in an 'images' folder.

So - Customer ID '1' has a image 'images/1.jpg'.

I can display the customers image by doing:

<img src="images/<%= CustomerID %>" width="140" height="100"></td>

where ID is:
CustomerID = request.querystring("ID") & ".jpg"

My question is - if the image doesn't exist in the images folder - can I show some text saying 'Image Required' instead of the little cross?

Any help would be great

raf · 10-13-2003, 01:25 PM

You can use the FSO fileexists method:
http://www.devguru.com/Technologies/...ileexists.html

holty · 10-13-2003, 02:01 PM

Raf,

I'm trying to use that like this :

FUNCTION FileExist(FileName)
Dim FS, DoesExist
DoesExist = FALSE
SET FS=Server.CreateObject("Scripting.FileSystemObject")
IF (FS.FileExists(FileName)) = TRUE THEN
DoesExist = TRUE
END IF
SET FS=Nothing
FileExist = DoesExist
END FUNCTION

<% IF FileExist(server.mappath("images") & "CustomerID") THEN %>
<img src="images/<%= CustomerID %>" width="140" height="100"></td>
<% else %>
no file exists</td>
<% end if %>

But it doesn't like it - if you look at my previous post the CustomerID is appended to a '.jpg'

can you see what i've doen wrong?

raf · 10-13-2003, 03:25 PM

Maybe try something like

Code:

dim fileadr
fileadr = "../images/" & request.querystring("ID") & ".jpg"
' comment : or "images/" & request.querystring("ID") & ".jpg" --> depending on where images is situated, relativaly to this file

IF FileExist(server.mappath(fileadr) THEN 
  response.write("<img src="""& fileadr & """ width=""140"" height=""100"">") 
else
  response.write("no file exists")
end if
response.write("</td>")

holty · 10-13-2003, 03:55 PM

Raf - got that working!!

Cheers mate - you've been a great help!

raf · 10-13-2003, 09:31 PM

You're welcome. Glad you got it working.

whammy · 10-14-2003, 02:22 AM

By the way, glenngv and I came up with a pretty cool client-side solution to this too (whether or not an image (or webpage!) exists, and ways to deal with using client-side javascript)...

I suggested the idea, and he coded it perfectly (exactly what I was thinking!), if you can find it.

glenngv · 10-14-2003, 07:35 AM

http://www.codingforums.com/showthre...threadid=23725

whammy · 10-15-2003, 04:01 AM

Brilliant.