FarPoint.Win.Spread.Model.IExpressionSupport ems;
FarPoint.CalcEngine.Expression one = new FarPoint.CalcEngine.DoubleExpression(1.0);
FarPoint.CalcEngine.Expression two = new FarPoint.CalcEngine.DoubleExpression(2.0);
FarPoint.CalcEngine.Expression oneplustwo = new FarPoint.CalcEngine.BinaryOperatorExpression(FarPoint.CalcEngine.BinaryOperatorInfo.AddOperator,
one, two);
ems = (FarPoint.Win.Spread.Model.IExpressionSupport)fpSpread1.ActiveSheet.Models.Data;
ems.SetExpression(0, 0, oneplustwo);
label1.Text = "The type of expression is " + ems.GetExpression(0, 0).ToString();