//init the string array to empty
    public string[] emptyStringArray(string[] strArr)
    {
        if (strArr != null)
        {
            for (int idx = 0; idx < strArr.Length; idx++)
            {
                strArr[idx] = String.Empty;
                //strArr[idx] = "";
            }
        }

        return strArr;
    }

    

            //5 bullet
            //public string[] bulletArr; // total 5 (or more, but only record 5)
            
            productInfo.bulletArr = new string[5];
            crl.emptyStringArray(productInfo.bulletArr);