selectall

The selectall tag and script are used to automatically select all of the other checkbox response options in a question by checking the specified response option. This is useful for creating an "All of the above" type option in a checkbox question.

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Syntax

Check all options

selectall: Option ID

Check an option subset

selectall: Option ID, Option IDs to check

Examples

Check all options in a question

When a respondent checks the 'All of the above' option, all of the other check boxes are automatically checked. Clicking the 'All of the above' option a second time unchecks the other options.

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Grouped options and conditioned lists

It's possible to include a certain option or group of options that should be checked while leaving others unchecked. To do this, use a comma-delimited list of options. The first number in the list is the trigger option that selects all of the specified options, and any numbers following the first number are the options that are to be checked if the trigger option is checked.

In the example below, the selectall script is used more than once to create two separate options to select their own larger set of options. If option 98 is selected, then it will also automatically check options 1 - 4; if option 99 is selected, then it will also automatically select options 5 - 8. Both options 98 and 99 can be selected to select all flavor options.

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In the follow up question Q3, a condition is placed on the FLAVORS list to only display the list options that were selected in Q2. Although potentially all options from FLAVORS could be selected here and it would seem that one should be able to use a range, e.g., selectall: 100,1..8, due to the conditional statement on the listcall for FLAVORS, all options must be listed out in a comma-delimited list.

Using exclusive with selectall

The selectall and exclusive tags work as opposing functions. When combined, clicking the selectall option will select all options (or all specified options) except for the exclusive option. Clicking the exclusive option will then deselect any previously selected options, the equivalent of negating the selectall selection. SPs may either just list the option ID for the selectall option in the tag, or list the "selectall option" first, followed by the options to check with it in a list after. Usually the latter is used when a subset of options should be selected with the selectall option.

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