you have to provide more information about how you implemented the business logics of your web-application.

You can create a user class, and in that user class, define options in the form of a switch statement.

switch (UserRequest)
{
    case "A":
       Console.WriteLine ("user {0} has done {1} at {2}", userClass.UserName, userClass.Accessed, DateTime.Now.ToString());
       //etc...
    default:
       break;
}


it depends on your implementation.