web security information required

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i have some delete edit search update functions in my web application in asp.net using vb..
i want that only administrator can edit update add and delete user can only view and search ..
how i can do this ..
share info or link ..
thanks in advance

Posted 15-Nov-12 0:43am

mansoor from shs

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CafedeJamaica · Answer 1 · 2012-11-15T03:33:00

I suggest you set up a user permissions table or add a column called sql permissions to your user table.

1. The column should be a string
2. The string should have all the right that the user has on the DB
3. The user rights should be loaded with the user login
4. The string shoul look like this "U" Update, "S" Select, "I" Insert, "D" Delete and you create combinations of these strings "SI" Select and Insert or "SU" Select and Update or "SUID" All roles

All it takes is for you to look up the string a do an if test before you run a query i.e. if( mypermisionsstring.Indexof("D")>0) or if( mypermisionsstring.Indexof("U")>0)to see if a user can delete or update before you run your query.