在c＃中使用数据库的试用版 [英] Trial version using database in c#

问题描述

我正在尝试创建我的应用程序的试用版。我已经阅读了很多文章，其中说明了如何在配置文件，应用程序文件夹等中存储日期。



现在，我想出了另一条出路。我需要帮助才能知道天气的好主意。



如何：



我将创建一个数据库字段，称为count，在数据库中输入安装日期。每次程序启动时我都会得到当前日期，并且与安装日期（例如30）的差异将存储在计数中然后我检查使用计数到期。



这个概念有什么问题。我将使用加密算法以加密格式存储数据库中的所有数据。



此外，根据我的目标受众而言，安全性不是主要问题

I am trying to create trial version of my application.I have gone through so many articles which stated ways such as storing dates in config file,in application folder etc.

Now,i thought another way out.I need help to know weather its good idea or not.

HOW:

I will create one database field say count,enter installation date in database.Every time program launches i will get the current date,and difference with the installation date (say 30),will be stored in the count.Then i check using count for the expiration.

Is there any thing wrong with this concept.I will use encryption algorithms to store all data in database in encrypted format.

Further,Security is not MAJOR issue here as per as my target audience is concerned

推荐答案

那里有几种方法可以实现这一目标。您选择的方法取决于您的需求。



请参考以下内容：

如何创建应用的试用版？ [ ^ ]

http://stackoverflow.com/questions/4521468/where-to-store-the-protection-试用信息用于软件保护目的 [ ^ ]

There are several ways to achieve that. The method you choose depends on your needs.

Please, refer these:
How to create a trial version of your app?[^]
http://stackoverflow.com/questions/4521468/where-to-store-the-protection-trial-info-for-software-protection-purpose[^]

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