FarPoint.Win.Spread.Model.DefaultSheetDataModel dataModel = new FarPoint.Win.Spread.Model.DefaultSheetDataModel(5, 5);
string s;
dataModel.SetNote(0, 0, "TestNote");
fpSpread1.ActiveSheet.Models.Data = dataModel;
s = dataModel.GetNote(0, 0);
listBox1.Items.Add(s);