I prefill one answer using a URL like this

www.example/index.php/survey/index/sid/7...712544X99X2152=12345

Then I set the "always hide" option. Most of the time, this works, but sometimes the parameters are missing, so the answer is blank.

When it is blank, I want to unhide the question. I tried using a relevance equation of !is_empty(foo), but this seems to always hide the question and break recording of the answer in both cases.

Version 2.00+ Build 130913

I don't think you want to use relevance because the question should always be relevant, whether pre-populated or not.

Assuming it is a short-text question, try not using the "always hide" option, set up your survey to use JavaScript and add this to the question source:

Of course, this will also hide the question if a respondent answers it, moves on in the survey and then returns to the group later.

Hi,

Think i use 2 question.
First with hide settings prefilled by URL
Second : is_empty(FIRST)

ANd maybe a 2rd equation question type:
{FIRST.NAOK}{SECOND.NAOK}

Denis

Denis, this sounds like what I came up with.

I added a second question which is irrelevant when the first question is not empty.

I would like to hide the question if a textarea has been filled.

I'm using a question with a timer. It is the only question in the category.
I thought I had this working...

But it hides the question whether there is any text in the textarea or not. Any thoughts would be most appreciated. Thanks for maintaining such a great resource.
David

Try:

That did the trick.

You know, I was trying that at one point, but I was trying to extend the if statement to handle a Default Answer.
So:

But, it didn't work. I just got rid of the Default answer and all is well.

For a default answer in a text question, try:

tpartner wrote: I don't think you want to use relevance because the question should always be relevant, whether pre-populated or not.

Assuming it is a short-text question, try not using the "always hide" option, set up your survey to use JavaScript and add this to the question source:

Code:

<script type="text/javascript" charset="utf-8"> $(document).ready(function() { if($('#question{QID} input.text').val() == '') { $('#question{QID}.hide(); } }); </script>

Of course, this will also hide the question if a respondent answers it, moves on in the survey and then returns to the group later.

Is there documentation about how to do this for list or other non text questions? I would like to hide a question once it is answered. Thanks.