Enum DataValidationCriteria

An enumeration representing the data-validation criteria that can be set on a range.

 // Change existing data-validation rules that require a date in 2013 to require a date in 2014.
 var oldDates = [new Date('1/1/2013'), new Date('12/31/2013')];
 var newDates = [new Date('1/1/2014'), new Date('12/31/2014')];
 var sheet = SpreadsheetApp.getActiveSheet();
 var range = sheet.getRange(1, 1, sheet.getMaxRows(), sheet.getMaxColumns());
 var rules = range.getDataValidations();

 for (var i = 0; i < rules.length; i++) {
   for (var j = 0; j < rules[i].length; j++) {
     var rule = rules[i][j];

     if (rule != null) {
       var criteria = rule.getCriteriaType();
       var args = rule.getCriteriaValues();
 
       if (criteria == SpreadsheetApp.DataValidationCriteria.DATE_BETWEEN
           && args[0].getTime() == oldDates[0].getTime()
           && args[1].getTime() == oldDates[1].getTime()) {
         // Create a builder from the existing rule, then change the dates.
         rules[i][j] = rule.copy().withCriteria(criteria, newDates).build();
       }
     }
   }
 }
 range.setDataValidations(rules);