title: Read Post Data submitted to ASP.Net Form
body: <p>I have a working login form in an asp.net application.  Standard stuff with a username and password text box and a button to process the login.  Works fine.</p>
  
  <p>I have a new requirement to allow the user to input the username and password from a separate plain html page that is not a part of my asp.net application.  I plan on achieving this using standard html - form, input, submit button etc.  The form action will be the URL of my asp.net login page and its method will be POST.  </p>
  
  <p>What I want to do in the C# code behind page of the asp.net login form, presumably in the Page_Load event, is to check if the request for the page contains a username and password value being passed in.  If it does then I need to read those values and process the login as if someone had clicked the login button on the asp.net page.  If not then I will display the login form as usual.  </p>
  
  <p>How do I check for the existence of, and read, the username and password values in the request for my page. </p>