private void Form1_Load(object sender, EventArgs e)
{
fpSpread1.Sheets[0].Cells[1, 1].Text = "aaatest";
}
private void button1_Click(object sender, EventArgs e)
{
//TextContains CF
FarPoint.Win.Spread.TextConditionalFormattingRule text = new FarPoint.Win.Spread.TextConditionalFormattingRule(FarPoint.Win.Spread.TextConditionOperator.BeginsWith, "aaa");
text.Operator = FarPoint.Win.Spread.TextConditionOperator.BeginsWith;
text.BackColor = Color.Red;
fpSpread1.ActiveSheet.SetConditionalFormatting(1, 1, text);
}