viRow.EndEdit();

            ds.Merge(dt);

        }

检验输入数据是数字还是字母的方法：

        public void Test(string strTest, out int intTest)         

        {

            if (Regex.IsMatch(strTest,

"^((\\+|-)\\d)?\\d*(\\d|[.]\\d|[.]\\d\\d|[.]\\d\\d\\d)$") == false)

            {

                intTest = 1;

            }

            else

            {

                intTest = 0;

            }

        }

用户密码加密输出方法：

        public string mmjmsc(string lc_srmm)  

        {

            Byte[] clearBytes = new UnicodeEncoding().GetBytes(lc_srmm);

            Byte[] hashedBytes =

((HashAlgorithm)CryptoConfig.CreateFromName("MD5")).ComputeHash(clearBytes);

            return BitConverter.ToString(hashedBytes);

        }