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If isempty - inserting &nbsp into a database

Posted on 2004-10-16
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Last Modified: 2013-11-13
You would this this would be a no-brainer, but I'm having difficulty...

If the user leaves a field blank, I want to insert "&nbsp" into the database. No big deal. Problem is, I must have it scripted incorrectly because what I have returns absolutely nothing.

Take a look:

if NOT isempty (Request.Form("BusName")) then
x = Replace(Request.Form("BusName"),"'","''")
else
x = "Hello"
end if

response.write x

When Request.Form("BusName") is empty, while there's no error on the page, "x" doesn't register at all. I get a blank page as opposed to "Hello".

What am I missing?
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Question by:brucegust
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5 Comments
 
LVL 6

Expert Comment

by:david_barker
ID: 12330290
Try this :
if Request.Form("BusName")="" then
0
 
LVL 6

Expert Comment

by:david_barker
ID: 12330292
Sorry, I meant :
if Request.Form("BusName")<>"" then
0
 
LVL 1

Expert Comment

by:scanadmin
ID: 12333159
david_barker is correcet, however, i would use
If Len(Trim(Request.Form("BusName"))) > 0 Then....

incase users insert spaces into 'blank' fields e.t.c
0
 

Author Comment

by:brucegust
ID: 12338338
scanadmin...

You've got my vote, friend. Thank you both for taking the time to help me out. David, your suggestion worked, but scanadmin is anticipating some user error and I'm thinking that's wise.

scanadmin, could you please explain to me "Len". I've never seen that before and I would be interested in knowing what it's doing from a code perspective.

Thanks!
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LVL 1

Accepted Solution

by:
scanadmin earned 20 total points
ID: 12340748
Len is a predefined function in VB asn VBScript.

It takes one string argument and returns a number telling you how long it is.

e.g Len("hello") would return 5 as would s = "hello", len(s)

In the ASP Example above, we use Trim() to get rid of whitespace then len to see if there are more than 0 characters.

Hope this helps
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