public override string[] GetRolesForUser(string username) { using (HostelNepalDBEntities objContext = new HostelNepalDBEntities()) { var objUser = objContext.tblusers.FirstOrDefault(x => x.UserName == username); if (objUser == null) { return(null); } else { string[] ret = objUser.tblUserRoles.Select(x => x.tblRole.RoleName).ToArray(); return(ret); } } }