fpSpread1.ActiveSheet.ColumnCount = 5;
fpSpread1.ActiveSheet.RowCount = 5;
fpSpread1.ActiveSheet.Cells[0, 0, 4, 4].Text = "This is a note test!";
fpSpread1.ActiveSheet.SetNote(0, 0, "I am a note!");
fpSpread1.ActiveSheet.SetNote(1, 1, "I am a note!");
fpSpread1.ActiveSheet.SetNote(2, 2, "I am a note!");
fpSpread1.ActiveSheet.SetNote(3, 3, "I am a note!");
fpSpread1.ActiveSheet.ShowNotes(true);
int r, c;
FarPoint.Win.Spread.Model.DefaultSheetDataModel dm;
dm = fpSpread1.ActiveSheet.Models.Data;
c = dm.GetNonEmptyNotesColumnCount;
r = dm.GetNonEmptyNotesRowCount;
MessageBox.Show(c.ToString() + " - " + r.ToString())