//This example validates data.
var condition1 = new GC.Spread.Sheets.ConditionalFormatting.Condition(GC.Spread.Sheets.ConditionalFormatting.ConditionType.dateCondition, {compareType: GC.Spread.Sheets.ConditionalFormatting.DateCompareType.afterEqualsTo, expected: new Date(2012, 11, 31)});
var condition2 = new GC.Spread.Sheets.ConditionalFormatting.Condition(GC.Spread.Sheets.ConditionalFormatting.ConditionType.dateCondition, {compareType: GC.Spread.Sheets.ConditionalFormatting.DateCompareType.beforeEqualsTo, expected: new Date(2013, 11, 31)});
var nCondition = new GC.Spread.Sheets.ConditionalFormatting.Condition(GC.Spread.Sheets.ConditionalFormatting.ConditionType.relationCondition, {compareType: GC.Spread.Sheets.ConditionalFormatting.LogicalOperators.and, item1: condition1, item2: condition2});
var validator = new GC.Spread.Sheets.DataValidation.DefaultDataValidator(nCondition);
validator.type(GC.Spread.Sheets.DataValidation.CriteriaType.custom);
activeSheet.getCell(0, 0, GC.Spread.Sheets.SheetArea.viewport).validator(validator);
spread.options.highlightInvalidData = true;
activeSheet.setValue(0, 0, new Date(2012, 11, 25));