Force number of characters
Force number of characters
In order to force the respondent to write a certain number of characters in a text sub question.
As a questionnaire creator
I want to force the respondent to write a zip code, or a phone number in a certain text field.
Example
Solution
- Add a Text grid question to Questionnaire editor like below
- Go to menu Properties -> Question scripts -> Java script tab -> Input script
Code
var normalQuestionCheck = questioncheck;
function extendedQuestionCheck()
{
var valid = normalQuestionCheck();
if (valid)
{
// var_a hold the respondents answer.
var var_a;
// This is where the index of your sub question is defines.
// The code below is that we use sub question has index 0
var_a = document["query"][quest.label + "." + 0].value;
if (var_a.length > 0)
{
if (var_a.length != 10)
{
alert('The field can only hold 10 characters.');
return false;
}
}
}
if (!valid)
{
alert('Please correct your answer.');
return false;
}
return true;
}
questioncheck = extendedQuestionCheck;
Source
Questionnaire Resource Id on cg site: 159730