.net讀寫註冊表

net 讀寫註冊表
  /// <summary>
        /// 獲得註冊表中的資訊
        /// </summary>
        /// <returns>返回註冊表中網吧名稱</returns>
        public string GetRegisterKey()
        {
            string reVal = "";
            RegistryKey softWareKey = Registry.CurrentUser.OpenSubKey("Software\\Test");

            if (softWareKey != null)
            {
                object obj = softWareKey.GetValue("CompanyName");
                reVal = obj.ToString();
            }

            return reVal;
           
        }

        /// <summary>
        /// 寫註冊表　將使用者名稱稱和網吧名稱寫入註冊表
        /// </summary>
        /// <param name="userName">使用者名稱稱</param>
        /// <param name="lanBarName">網吧名稱</param>
        /// <returns></returns>
        public int WriteRegisterKey(string userName, string lanBarName)
        {
            int iReturn = 1;

            try
            {
                RegistryKey regWrite = Registry.CurrentUser.CreateSubKey("SoftWare\\Test");

                regWrite.SetValue("CompanyName", lanBarName);

                regWrite.SetValue("UserName", userName);

                regWrite.Close();
            }
            catch (Exception ex)
            {
                iReturn = 2;
                throw ex;
            }
            return iReturn;
        }