login to a website from textboxes C#

Question

Hello, What I need to develop is an application that contains 2 textboxes, 1 button, 1 label. In the first text box, I will put my user name. In the second my password. When I click the button, The software should visit this page: https://eole.telecom-paristech.fr/ and post my username and my password (that I have already entered in the textboxes) The label should then display the HTML code of the page returned after the successful login. How can I do this? I am getting too much trouble to find a good help on how should I use the POST method in HTTPrequest. Can anyone write a small code for me? THANKS