//Type a text string in cell 1,1 to see the error notification
FarPoint.Win.Spread.CellStyleNotify cnotify = new FarPoint.Win.Spread.CellStyleNotify();
cnotify.InvalidCellStyle.BackColor = Color.Aqua;
FarPoint.Win.Spread.RequiredTypeValidator requiredt = new FarPoint.Win.Spread.RequiredTypeValidator();
requiredt.RequiredType = typeof(decimal);
requiredt.NullIsValid = true;
requiredt.Actions.Add(cnotify);
fpSpread1.Sheets[0].AddValidators(new FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), requiredt);
fpSpread1.Sheets[0].Cells[1, 1].Value = 5;
'Type a text string in cell 1,1 to see the error notification
Dim cnotify As New FarPoint.Win.Spread.CellStyleNotify()
cnotify.InvalidCellStyle.BackColor = Color.Aqua
Dim requiredt As New FarPoint.Win.Spread.RequiredTypeValidator()
requiredt.RequiredType = GetType(Decimal)
requiredt.NullIsValid = True
requiredt.Actions.Add(cnotify)
FpSpread1.Sheets(0).AddValidators(New FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), requiredt)
FpSpread1.Sheets(0).Cells(1, 1).Value = 5