How to Provide Security at User level base in asp.net for certain pages

 Hi
I have a site
We have different Pages under one folder.
we have stored these pages information in a database table with pageid.
Then we have User access table.
there we store userid and pageid , for which pages user has access.
Now I need to provide access to that pages only .
What to do.
Could you please provide answer asap.
 
Thanks
 
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