通过object获得DateTime? - DateTimeNullGetByObj

2017-02-06 14:18:09  访问(1467) 赞(0) 踩(0)


        /// <summary>
        /// 通过object获得DateTime? - DateTimeNullGetByObj
        /// </summary>
        /// <param name="obj"></param>
        /// <param name="defaultValue"></param>
        /// <returns></returns>
        public DateTime? DateTimeNullGetByObj(object obj)
        {
            if (obj == null)
                return null;

            if (obj is DateTime)
                return (DateTime)obj;

            string str = obj.ToString();

            if (str.Length == 0)
                return null;

            DateTime theResult = DateTime.MinValue;

            if (DateTime.TryParse(str, out theResult))
                return theResult;

            return null;
        }


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