How can I download content from a webpage that requires login information

I am trying to create a small application that will do开发者_高级运维wnload the content of a certain webpage. I am able to do that with certain web pages using WebRequest. However the web page I need to download from requires login information.

I am using C# and Visual Studio Express 2010

Thank you in advance...

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Have a look at HttpWebRequest.Credentials.

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You can either simply use HttpWebRequest.Credentials as CesarGon mentioned or if it's HTTP Basic authorization, add an appropriate HTTP header (that would be environment independent):

Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=

where dXNlcm5hbWU6cGFzc3dvcmQ= is base 64 encoded username:password.