DataRow转成Boolean?值，值为"1"返回true，"0"返回false，空返回null，否则缺省返回defaultValue - DataRowToBooleanNull

2017-01-26 09:23:41 访问(1317) 赞(0) 踩(0)


        /// <summary>
        /// DataRow转成Boolean?值，值为"1"返回true，"0"返回false，空返回null，否则缺省返回defaultValue - DataRowToBooleanNull 
        /// </summary>
        /// <param name="dr"></param>
        /// <param name="strName"></param>
        /// <param name="defaultValue"></param>
        /// <returns></returns>
        public bool? DataRowToBooleanNull(DataRow dr, string strName, bool? defaultValue)
        {
            object obj = dr[strName];

            if (obj == null || obj == DBNull.Value)
                return null;

            string str = obj.ToString();

            switch (str)
            {
                case "1":
                    return true;
                case "0":
                    return false;
                case "":
                    return null;
                default:
                    return defaultValue;
            }
        }