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H
Hydrowizard
Inspiring
June 23, 2008
Answered

cannot convert the value "lower" to a boolean

  • June 23, 2008
  • 2 replies
  • 1170 views
I am trying to work out why this example gives me an error, it is meant to demonstrate the ability to return a data type other than a Boolean from a UDF but doesn´t seem to work. Why is that? I'm using cfmx7 which shouldn´t matter as udfs are cf5+ Thanks for any replies
This topic has been closed for replies.
Correct answer Newsgroup_User
Hydrowizard wrote:
> Thanks for the reply Phil, sorry I forgot to put that the error message is
> "cannot convert the value "lower" to a boolean". The return false part came in
> the code- I got rid of it now, I did think that it was always necessary though
> thanks for pointing that out.
>

Have your resolved your error?

If not, or for others it is in your first if clause:
<cfif not isUpperOrLowerCase("a")>

You are not comparing the function to anything so CF is trying to
convert the returned value 'lower' in this case to either true or false,
i.e. a boolean value, and failing. So it is telling you that it can not
convert 'lower' into a boolean value.

Now this would give it no problem.

<cfif not isUpperOrLowerCase("a") EQ 'lower'>

But then I am not sure what that is really testing.

2 replies

H
HydrowizardAuthor
Inspiring
June 24, 2008
it is a sitepoint tutorial thanks for all the help
P
paross1
Participating Frequently
June 23, 2008
Why do you have a return false following your if .. return "upper" .. else .. return "lower"? And, you might want to post the particular error that you are getting in the future.

Phil
H
HydrowizardAuthor
Inspiring
June 23, 2008
Thanks for the reply Phil, sorry I forgot to put that the error message is "cannot convert the value "lower" to a boolean" in the message body! The return false part came in the code direct from the tutorial I got rid of it now- so does anyone know why this error happens?
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