public CauHinh(DangNhap dn, string manv) { InitializeComponent(); this.dn = dn; this.manv = manv; p = new PhongController(); hienThiDanhSach(); cboLoaiPhong.SelectedIndex = 0; cboTrangThai.SelectedIndex = 0; cboSuaLoaiPhong.SelectedIndex = 0; cboSuaTrangThai.SelectedIndex = 0; pnlSua.Visible = false; }