private void Form1_Load(object sender, EventArgs e)
{
fpSpread1.Sheets[0].Cells[0, 0].Value = 3;
fpSpread1.Sheets[0].Cells[1, 0].Value = 2;
fpSpread1.Sheets[0].Cells[1, 1].Value = 10;
fpSpread1.Sheets[0].Cells[0, 2].Value = 1;
FarPoint.Win.Spread.UnaryComparisonConditionalFormattingRule unary = new FarPoint.Win.Spread.UnaryComparisonConditionalFormattingRule(FarPoint.Win.Spread.UnaryComparisonOperator.EqualTo, 10, false);
unary.Operator = FarPoint.Win.Spread.UnaryComparisonOperator.EqualTo;
unary.Value = 10;
unary.BackColor = System.Drawing.Color.Red;
unary.FontStyle = new FarPoint.Win.Spread.SpreadFontStyle(FarPoint.Win.Spread.RegularBoldItalicFontStyle.Bold, FarPoint.Win.Spread.StrikeoutFontStyle.Strikeout, FarPoint.Win.Spread.UnderlineFontStyle.Underline);
FarPoint.Win.Spread.BetweenValuesConditionalFormattingRule between = new FarPoint.Win.Spread.BetweenValuesConditionalFormattingRule(false, 1, false, 20, false);
between.FirstValue = 1;
between.SecondValue = 20;
between.IsNotBetween = true;
between.BackColor = System.Drawing.Color.Bisque;
//SetConditionalFormatting Overload
fpSpread1.ActiveSheet.SetConditionalFormatting(0, 0, 3, 3, false, unary, between);
}