FarPoint.Win.Spread.Model.CellRange cr = new FarPoint.Win.Spread.Model.CellRange(0, 0, 3, 3);
fpSpread1.ActiveSheet.Models.Span.Add(cr.Row, cr.Column, cr.RowCount, cr.ColumnCount);
bool b = cr.IsValidRange(fpSpread1.ActiveSheet, true);
if (b) {
fpSpread1.ActiveSheet.Cells(cr.Row, cr.Column, cr.RowCount - 1, cr.ColumnCount - 1).BackColor = Color.Red;
}
Dim cr As New FarPoint.Win.Spread.Model.CellRange(0, 0, 3, 3)
FpSpread1.ActiveSheet.Models.Span.Add(cr.Row, cr.Column, cr.RowCount, cr.ColumnCount)
Dim b As Boolean = cr.IsValidRange(FpSpread1.ActiveSheet, True)
If b Then
FpSpread1.ActiveSheet.Cells(cr.Row, cr.Column, cr.RowCount - 1, cr.ColumnCount - 1).BackColor = Color.Red
End If