Public Function UnparseFormula( _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal expression As Expression _
) As String

Dim instance As DefaultSheetDataModel
Dim row As Integer
Dim column As Integer
Dim expression As Expression
Dim value As String
 
value = instance.UnparseFormula(row, column, expression)

public string UnparseFormula( 
   int row,
   int column,
   Expression expression
)

FarPoint.Web.Spread.Model.DefaultSheetDataModel dm;
dm = FpSpread1.ActiveSheetView.DataModel;
FarPoint.CalcEngine.Expression ex;
string s;
FpSpread1.ActiveSheetView.Cells[0, 0].Value = 10; 
FpSpread1.ActiveSheetView.Cells[1, 0].Value = 10; 
FpSpread1.ActiveSheetView.Cells[2, 0].Formula = "A1 + A2"; 
ex = dm.ParseFormula(2, 0, "A1+A2"); 
s = dm.UnparseFormula(2, 0, ex); Response.Write(s);

Dim dm As FarPoint.Web.Spread.Model.DefaultSheetDataModel
dm = FpSpread1.ActiveSheetView.DataModel
Dim ex As FarPoint.CalcEngine.Expression
Dim s As String
FpSpread1.ActiveSheetView.Cells(0, 0).Value = 10 
FpSpread1.ActiveSheetView.Cells(1, 0).Value = 10 
FpSpread1.ActiveSheetView.Cells(2, 0).Formula = "A1 + A2" 
ex = dm.ParseFormula(2, 0, "A1+A2") 
s = dm.UnparseFormula(2, 0, ex)
Response.Write(s)