login into a WEB page - parse HTML data - programatically.

I work for a non-profit.  We have the need to pull data from a government WEB site.  There is no API or WEB service to access the site/pages.   They do have a login page. Is there a way to programatically login, and once logged in, parse the data that comes back in the form of HTML pages?  Does this make sense?
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Yes, there is.  You need to emulate with the HTTP/HTTPS requests accordingly to pass through the login page.  You will need to keep track of Cookies too.

Here are some references:

Login to a forms based site from Windows app using WebClient or webrequest

HttpWebRequest Class

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Is it for winforms or ASP.NET?
HLRosenbergerAuthor Commented:
HLRosenbergerAuthor Commented:
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