Hi
kanima,Your reply to solve my problem, thanks!
There was another issue, if I enter a Formula like "=IF ((A1-A2) <0,0,A1)",
It will recognize the comma int the formula as a decimal point, then it show a message that "number contains 2decimal points". I tried to set"GridFormulaEngine.ParseDecimalSeparator = '.'",
but it does not work.Can you give me some suggestions to solve the problem?