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Filter on dropdown menu values

bianconijo
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6 years 11 months ago - 6 years 11 months ago #154914 by bianconijo

Filter on dropdown menu values was created by bianconijo

Ciao,
I have the following situation:

Group of questions 1: the participant must select the first teacher to evaluate from a dropdown menu containing more than 90 values. This group of questions three more questions (arrays) on the characteristics of the teacher.

After the evaluation of the first teacher is accomplished, the participant goes to Group of questions 2.

In this group of question, there's the same dropdown menu from where the participant must pick the second teacher to evaluate. This group of questions three more questions (arrays) on the characteristics of the teacher.

And so on. Approximately, each participant will have to evaluate ten teachers out of 90.

To prevent a paricipant from evaluating the same teacher twice or more (by mistake or on purpose), is it possible to remove from the dropdown the names of the teachers already picked and evaluated?

The survey is public (just a link), no token.

For example (see attached):
in Group of questions 1, I can choose between 5 teachers: Brown Charlie, Green Peter, Pink Anna, Red Maurus, Yellow Steve. Let's assume I evaluate Green Peter. In the next group of questions (2) I will be able to select only one the following:
Brown Charlie, Pink Anna, Red Maurus, Yellow Steve (Green Peter does not show up anymore because I have already evaluated him).

Thanks for your support in this matter.

BC

Attachments:

...vey_997518.lss

Last edit: 6 years 11 months ago by bianconijo.

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tpartner
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6 years 11 months ago #154915 by tpartner

Replied by tpartner on topic Filter on dropdown menu values

There is no built-in filtering for list-dropdown questions but you could insert your own with JavaScript.

For examples sake, let's say the question codes of the dropdowns are "teacher1", "teacher2"..."teacher10".

Set up your survey to use JavaScript and place the following script in the question source of teacher2:

Code:

<script type="text/javascript" charset="utf-8">
  $(document).ready(function() { 
    $('#question{QID} option[value="{teacher1}"]').remove();  
  });
</script>

Place this in the question source of teacher3:

Code:

<script type="text/javascript" charset="utf-8">
  $(document).ready(function() { 
    $('#question{QID} option[value="{teacher1}"]').remove();     
    $('#question{QID} option[value="{teacher2}"]').remove();
  });
</script>

Place this in the question source of teacher4:

Code:

<script type="text/javascript" charset="utf-8">
  $(document).ready(function() { 
    $('#question{QID} option[value="{teacher1}"]').remove();     
    $('#question{QID} option[value="{teacher2}"]').remove();   
    $('#question{QID} option[value="{teacher3}"]').remove();
  });
</script>

...and so on.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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bianconijo
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6 years 11 months ago #154916 by bianconijo

Replied by bianconijo on topic Filter on dropdown menu values

Works like a charm!

Thanks for your time.

BC

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