Class TextValidation

  • TextValidation is used to apply specific data validation rules to text-based form responses collected through a TextItem.

  • It enables defining criteria like number ranges, custom error messages (using setHelpText), and applying these constraints via setValidation on the target TextItem.

  • The example demonstrates setting a numeric constraint, requiring user input to fall between 1 and 100 with a clear error message if the input is invalid.
TextValidation

A DataValidation for a TextItem. 

// Add a text item to a form and require it to be a number within a range. const form = FormApp.create('My form'); const textItem =  form.addTextItem().setTitle('Pick a number between 1 and 100?'); const textValidation =  FormApp.createTextValidation()  .setHelpText('Input was not a number between 1 and 100.')  .requireNumberBetween(1, 100)  .build(); textItem.setValidation(textValidation);