public bool TryConvert(object value, int columnIndex, out DevExpress.Spreadsheet.CellValue result)
        {
            string strValue = value as string;

            if (strValue != null)
            {
                int  str2int;
                bool success = Int32.TryParse(strValue, out str2int);
                result = success ? str2int : 0;
                return(true);
            }
            Type valueType = value.GetType();

            if (valueType == typeof(int))
            {
                result = (int)value;
            }
            else
            {
                result = null;
            }
            return(true);
        }