How do you add dynamic 'where' clauses to a linq query?

Question

I\'ve got a User table with a bitmask that contains the user\'s roles. The linq query below returns all the users whose roles include 1, 4 or 16.

var users          


        

Answer 1

private List GetUsersFromRoles(uint UserRoles) {
  return from u in dc.Users            
         where (u.UserRolesBitmask & UserRoles) != 0
         select u;
}

UserRoles parameter should be provided, however, as a bit mask, instead of array.