How to create a feature to log and monitor user activities

Greetings to Colleagues.

I am working on an already functional LocalDB database project. I have four distinct role users with different dashboard interfaces. I established connection in the App.config and connect to the database by the login form configuration.

Now, I want of create a feature that would log and monitor each user's activities in the database (when the user logged in to what account, and did what and at what time in the database).

I will appreciate if someone can help me solve my problem.

Thanks