AI-generated Key Takeaways
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CheckboxValidation is a DataValidation specifically for CheckboxItems in Google Forms.
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It allows you to set requirements for the number of choices a user must select from a checkbox item.
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You can customize the help text displayed to the user when the validation is not met.
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The provided code example demonstrates how to create a CheckboxValidation that requires exactly two selections.
Checkbox
A DataValidation for a Checkbox
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// Add a checkBox item to a form and require exactly two selections. const form = FormApp . create ( 'My Form' ); const checkBoxItem = form . addCheckboxItem (); checkBoxItem . setTitle ( 'What two condiments would you like on your hot dog?' ); checkBoxItem . setChoices ([ checkBoxItem . createChoice ( 'Ketchup' ), checkBoxItem . createChoice ( 'Mustard' ), checkBoxItem . createChoice ( 'Relish' ), ]); const checkBoxValidation = FormApp . createCheckboxValidation () . setHelpText ( 'Select two condiments.' ) . requireSelectExactly ( 2 ) . build (); checkBoxItem . setValidation ( checkBoxValidation );
