public RowFilterManager(ApplicationDbContext dbContext, ApplicationUserManager userManager)
 {
     _db             = dbContext;
     _userManager    = userManager;
     _rowFilterStore = new RowFilterStore(_db);
 }
 public RowFilterManager()
 {
     _db             = HttpContext.Current.GetOwinContext().Get <ApplicationDbContext>();
     _userManager    = HttpContext.Current.GetOwinContext().GetUserManager <ApplicationUserManager>();
     _rowFilterStore = new RowFilterStore(_db);
 }