How To Set Answers in Multiple Selection Questions

Overview

This how-to will show you how to set specific answers in multiple selection questions.

Difference between SetAnswer() and dblSetSpecificAnswer()

When dealing with setting answers, there are two main functions for doing that.

1^st one is SetAnswer():
This function get’s two parameters:
1^st param’: Question index

2^nd param’: Array of answer indexes to set

For example:
SetAnswer(3,1);

Will set answer 1 in question 3, whether it’s a single-choice question or a multiple-selection question.

SetAnswer(3,4,6,8);

Will set answer 4,6,8 in question 3 which should be a multiple selection question.

However, if the answer’s which are being set might change during run-time, if you would do this:
SetAnswer(3,4,6,8);

SetAnswer(3,1);

Intuitively you would expect answer 1,4,6,8 to be set – However, only answer 1 will be set, due to the fact that SetAnswer() function, is re-setting the answer’s to Not selected each timed it is being called.

Therefore, there is the function dblSetSpecificAnswer()

This function get’s 3 parameters:
1^st param’: Question Index

2^nd param’: Answer Index

3^rd param’: ‘true’ for selecting, ‘false’ for un-selecting

For example:
dblSetSpecificAnswer(3,4,true);

Will set answer 4 in question 3.

dblSetSpecificAnswer(3,4,false);

Will de-select answer 4 in question 3 (if it was previously chosen).

dblSetSpecificAnswer(3,7,true);

dblSetSpecificAnswer(3,6,true);

Will select answer 7 & 6 in question 3 (Without re-setting previous selections like SetAnswer() does)

As you can see, this function is more useful when needing to modify answer selection without affecting previous selections.

That’s it!

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