//Type a value in cell 1,1
FarPoint.Win.Spread.SoundNotify sound = new FarPoint.Win.Spread.SoundNotify();
sound.SoundType = FarPoint.Win.Spread.SystemSoundType.Exclamation;
FarPoint.Win.Spread.CompareStringValidator svalid = new FarPoint.Win.Spread.CompareStringValidator();
svalid.ComparedOperator = FarPoint.Win.Spread.CompareStringValidatorOperator.Contains;
svalid.ComparedString = "Test";
svalid.Actions.Add(sound);
fpSpread1.Sheets[0].AddValidators(new FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), svalid);