Almost all examples in this website is available on the Dapper C# Examples projects:
At the end of every month your trial expires, you can download it again for the following month using the same method.
If you downloaded the trial towards the end of the month it is likely that the trial won’t expire right away, but at the end of the following month instead.
The latest version always contains a trial that expires at the end of the month. You can extend your trial for several months by downloading the latest version at the beginning of every month.