private void ThemNH() { CNhomHang nh = new CNhomHang(txtMa.Text, txtTen.Text, txtGhiChu.Text, ceConQL.Checked); BUS_HangHoa.ThemNH(nh); sendNH?.Invoke(); Action.Module = "Nhóm Hàng"; Action.ActionName = "Thêm"; Action.Reference = txtMa.Text; Action.LuuThongTin(); this.Close(); }