partial void DeletePhanQuyen(PhanQuyen instance);
 private void detach_PhanQuyens(PhanQuyen entity)
 {
     this.SendPropertyChanging();
     entity.DangNhap = null;
 }
 partial void UpdatePhanQuyen(PhanQuyen instance);
 private void attach_PhanQuyens(PhanQuyen entity)
 {
     this.SendPropertyChanging();
     entity.DangNhap = this;
 }
 partial void InsertPhanQuyen(PhanQuyen instance);