FarPoint.Win.Spread.ExcelSparklineSetting ex = new FarPoint.Win.Spread.ExcelSparklineSetting();
ex.DisplayXAxis = true;
ex.DateAxis = true;
ex.Formula = "Sheet1!$A$1:$C$1";
fpSpread1.Sheets[0].Cells[0, 0].Text = "1/2/2011";
fpSpread1.Sheets[0].Cells[0, 1].Text = "1/3/2011";
fpSpread1.Sheets[0].Cells[0, 2].Text = "1/5/2011";
fpSpread1.Sheets[0].Cells[1, 0].Value = 2;
fpSpread1.Sheets[0].Cells[1, 1].Value = 11;
fpSpread1.Sheets[0].Cells[1, 2].Value = 4;
fpSpread1.Sheets[0].AddSparkline("Sheet1!$A$2:$C$2", "Sheet1!$D$2:$D$2", FarPoint.Win.Spread.SparklineType.Column, ex);