fpSpread1.ActiveSheet.Cells[0, 0, 1, 1].Value = 20;
fpSpread1.ActiveSheet.SetFormula(2, 0, "Sum(A1:B1)");
object o, o1;
o = fpSpread1.ActiveSheet.GetFormula(2, 0);
fpSpread1.ActiveSheet.SetNote(2, 0, o.ToString());
o1 = fpSpread1.ActiveSheet.GetNote(2,0);
listBox1.Items.Add(o1.ToString());
FpSpread1.ActiveSheet.Cells(0, 0, 1, 1).Value = 20
FpSpread1.ActiveSheet.SetFormula(2, 0, "Sum(A1:B1)")
Dim o, o1 As Object
o = FpSpread1.ActiveSheet.GetFormula(2, 0)
FpSpread1.ActiveSheet.SetNote(2, 0, o.ToString())
o1 = FpSpread1.ActiveSheet.GetNote(2, 0)
ListBox1.Items.Add(o1.ToString())