private void AddNotContainsText()
{
FormatConditionCollection conds = GetFormatCondition("E7:G8", Color.LightCoral);
int idx = conds.AddCondition(FormatConditionType.NotContainsText);
FormatCondition cond = conds[idx];
cond.Style.BackgroundColor = Color.Pink;
cond.Style.Pattern = BackgroundType.Solid;
cond.Text = "3";
}
// This method implements the ContainsText conditional formatting type.