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;
}
protected void Button1_Click(object sender, EventArgs e)
{
    //Unique or Duplicate CF
    FarPoint.Web.Spread.UniqueOrDuplicatedConditionalFormattingRule ud = new FarPoint.Web.Spread.UniqueOrDuplicatedConditionalFormattingRule(false);
    ud.IsUnique = true;
    ud.BackColor = Color.Thistle;
    FpSpread1.ActiveSheetView.SetConditionalFormatting(0, 0, 3, 3, ud);
}
	 
	
		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
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
     'Unique or Duplicate CF
    Dim ud = New FarPoint.Web.Spread.UniqueOrDuplicatedConditionalFormattingRule(False)
    ud.IsUnique = True
    ud.BackColor = Drawing.Color.Thistle
    FpSpread1.ActiveSheetView.SetConditionalFormatting(0, 0, 3, 3, ud)
End Sub