C#租赁项目问题 [英] C# Rental Project Problem

问题描述

你好

我正在开发基于C#的POS应用程序，该应用程序将以租金的形式提供给多家公司.

我将很快完成此申请，但我面临的问题是我不知道如何按租金进行管理.
当月结束时，如果客户还没有支付房租，那么我的应用程序将被阻止并显示错误.

请在这件事上帮助我，我将感谢你们.

关于

Hello

I am developing a POS application on C#, which I will be going to give multiple companies on a rental basis.

I will complete this application soon but the problem I am facing is that I don''t know how to manage it on rental basis.
When the month is completed and if the client hasn''t paid rent then my app gets blocked and shows error.

Please help me in this matter I will thankful to you people.

Regards

推荐答案

是的，我们可以通过跟踪安装日期和加密密钥来完成您的任务
遵循这些步骤，

1.安装时提供加密密钥
2.此加密密钥将包含软件结束日期，例如1个月.
4.每次登录时，如果否"，则检查"系统日期是否小于加密密钥日期"，然后退出应用程序EXIT
3.每次登录时，将系统日期存储在数据库中，检查以前的日期应小于或等于系统日期
4.如果用户支持系统日期，或者如果日期突然回到过去，您将知道用户作弊并关闭了程序.

Yes, we can accomplish your task by tracking date of installation and encrypted key
follow th stpes,

1. Provide a encrypted key while installation
2. This encrypted key will contains software end date, say for 1 month.
4. on each login, check "is system date is equal to lessthan encrypted key date" if No then application EXIT
3. on every login, store system date in database , check previous dates should be less or equal than system date
4. if user backs system date or If the day suddenly gone back in time, you will know, user have cheaten and you close the program.

也请注意不要疏远好的客户.
无论使用哪种方法，我都建议您分阶段取消服务.
也就是说，在月底之后的前三天，只需使用一个小屏幕，然后删除一小部分可用性，然后删除较大的可用性，直到完全变得无用为止.

请记住，人们通常可以在Google上寻找替代品，所以不要给他们借口抛弃您产品的借口.

Also be mindful not to alienate good customers.
Whatever method you use I would suggest a phased removal of service.
ie, for the first 3 days after the month end, merely use a nagging screen, then remove a small section of usability, then a larger etc until it becomes completely useless.

Remember that people generally can google for alternatives, so don''t go giving them the excuse to ditch your product.

该问题已经得到解答.请参考

如何创建试用版安装程序Windows应用程序使用vb.net [应用程序试用版 [

This question is already answered. Please refer to

How To create the trial version setup my windows application use vb.net[^]

[The solution mentioned here is actually done in C#]

or Direct link is here :

Application Trial Maker[^]

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