Une DataValidation pour un CheckboxGridItem
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// Add a checkbox grid item to a form and require one response per column. var checkboxGridItem = form.addCheckboxGridItem(); checkboxGridItem.setTitle('Where did you celebrate New Years?') .setRows(['New York', 'San Francisco', 'London']) .setColumns(['2014', '2015', '2016', '2017']); var checkboxGridValidation = FormApp.createCheckboxGridValidation() .setHelpText(“Select one item per column.”) .requireLimitOneResponsePerColumn() .build(); checkboxGridItem.setValidation(checkboxGridValidation);