protected void Page_Load(object sender, System.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.Web.Spread.Model.CellRange celRange1 = new FarPoint.Web.Spread.Model.CellRange(0, 0, 3, 3);
    FarPoint.Web.Spread.ThreeColorScaleConditionalFormattingRule rule = new FarPoint.Web.Spread.ThreeColorScaleConditionalFormattingRule(Color.Aqua, Color.Bisque, Color.BlueViolet);
    FpSpread1.Sheets[0].SetConditionalFormatting(new FarPoint.Web.Spread.Model.CellRange[] { celRange1 }, rule);
}
protected void Button1_Click(object sender, EventArgs e)
{
    FpSpread1.Sheets[0].ClearConditionalFormatings();
}
	 
	
		Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    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
    Dim celRange1 As New FarPoint.Web.Spread.Model.CellRange(0, 0, 3, 3)
    Dim rule As New FarPoint.Web.Spread.ThreeColorScaleConditionalFormattingRule(Drawing.Color.Aqua, Drawing.Color.Bisque, Drawing.Color.BlueViolet)
    FpSpread1.Sheets(0).SetConditionalFormatting(New FarPoint.Web.Spread.Model.CellRange() {celRange1}, rule)
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    FpSpread1.Sheets(0).ClearConditionalFormatings()
End Sub