AI-generated Key Takeaways
- 
          GridValidationBuilder is a DataValidationBuilder for a GridValidation in Google Apps Script forms. 
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          It can be used to set validation rules for grid items, such as requiring a limit of one response per column. 
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          The requireLimitOneResponsePerColumn()method is available to enforce this rule.
A DataValidationBuilder for a Grid.
// Add a grid item to a form and require one response per column. const form = FormApp.create('My Form'); const gridItem = form.addGridItem(); gridItem.setTitle('Rate your interests') .setRows(['Cars', 'Computers', 'Celebrities']) .setColumns(['Boring', 'So-so', 'Interesting']); const gridValidation = FormApp.createGridValidation() .setHelpText('Select one item per column.') .requireLimitOneResponsePerColumn() .build(); gridItem.setValidation(gridValidation);
Methods
| Method | Return type | Brief description | 
|---|---|---|
| require | Grid | Requires limit of one response per column for a grid item. | 
Detailed documentation
requireLimitOneResponsePerColumn()     
Requires limit of one response per column for a grid item.
Return
Grid — this validation builder, for chaining