Editing login page with .NET server-side processing

Edit the Week One login page to be able to take on server-side processing by incorporating it into a .NET solution.  Create one method that the server takes a piece of code or data from the user client-side, manipulates it server side after post back, and then provides the manipulated data back to the user.

I need help to display the user login information after clicking on submit. I want the page to display the username and password on the page using a .NET session object including a web.config file