Security :: How To Restrict Users Who Are Entering The Sites Without Login

Aug 9, 2010

I have a login form and users have to enter their username and password for entering the sites ..

Also now its possible for users to enter the sites without login .. they can select the options in the menu and access them ... But i want to restrict the users ..only allow them to access the menu componets after login ... If they tries to access the contents a text have to display ask them to login

how can i do that... i am using vb.net as my language in the page

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