C#支持从自定义日期时间格式到DateTime类型

        /// <summary>

        ///

        /// </summary>

        /// <param name="orignalData">20110122</param>

        /// <returns></returns>

        private string ConverterRISDateToValidDate(string orignalData)

        {

            string result = "";

            DateTime dtResult = new DateTime();

            bool isRight = DateTime.TryParseExact(orignalData, @"yyyyMMdd", null, DateTimeStyles.None, out dtResult);

            if (isRight)

            {

                result = dtResult.ToShortDateString();

            }

            return result;

        }

        /// <summary>

        ///

        /// </summary>

        /// <param name="orignalData">13:55.000</param>

        /// <returns></returns>

        private string ConverterRISTimeToValidTime(string orignalData)

        {

            string result = "";

            DateTime dtResult = new DateTime();

            bool isRight = DateTime.TryParseExact(orignalData, @"HHmmss.fff", null, DateTimeStyles.None, out dtResult);

            if (isRight)

            {

                result = dtResult.ToShortTimeString();

            }

            return result;

        }