How can I do this in my code? C#

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I have a website with a form and I want to activate form submission and then if 4 days have passed from activation date I want to disable submission of the form until activated again.
How is this possible ?
Can someone share the code or help?

What I have tried:

I’m not sure how to go about it.

Posted 30-Jun-20 14:47pm

candijen

Updated 30-Jun-20 19:52pm

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OriginalGriff · Answer 1 · 2020-06-30T19:52:00

Depends how complicated you want this to be: anything form a simple "store the expiry date, and compare it" to a full bought-in licencing package is possible.

The simple one is trivial: add a Settings option called ExpiryDate, make it DateTime, and set it to 2001-01-01 00:00.
When your app loads, read the expiry date and compare it to the current DateTime.Now value.
If it's greater that Now, all is fine.
Otherwise, re-activation is needed.

When you activate, take DateTime.Now, then call AddDays(4) on it, and save the new value in the Settings.