// Add a checkbox grid item to a form and require one response per column.constform=FormApp.openById('123abc');constcheckboxGridItem=form.addCheckboxGridItem();checkboxGridItem.setTitle('Where did you celebrate New Years?').setRows(['New York','San Francisco','London']).setColumns(['2014','2015','2016','2017']);constcheckboxGridValidation=FormApp.createCheckboxGridValidation().setHelpText('Select one item per column.').requireLimitOneResponsePerColumn().build();checkboxGridItem.setValidation(checkboxGridValidation);
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2024-12-22。"],[[["`CheckboxGridValidation` is used to set validation rules specifically for `CheckboxGridItem` within Google Forms."],["It allows you to enforce constraints like requiring exactly one response per column in a checkbox grid, enhancing data integrity and user experience."],["You can customize the validation with help text to guide users on expected input."]]],["This content demonstrates creating and validating a checkbox grid item within a form. It outlines adding a checkbox grid with titles, rows (e.g., \"New York\"), and columns (e.g., \"2014\"). The example then builds a `CheckboxGridValidation` to enforce a limit of one response per column, including setting custom help text. Finally, it applies this validation to the checkbox grid, ensuring responses adhere to the set criteria.\n"]]