private void btn_check_Click_1(object sender, EventArgs e) { if (rdb_ngay.Checked == true) { DAOCa cc = new DAOCa(); DateTime a = DateTime.Parse(dt_ngay.Value.ToString()); dataGridView1.DataSource = cc.getDanhSachCaTheoNVVaTheoNgay(Globals.NV, a); } if (rdb_khoang.Checked == true) { DAOCa cc = new DAOCa(); DateTime a = DateTime.Parse(dt_dau.Value.ToString()); DateTime b = DateTime.Parse(dt_sau.Value.ToString()); dataGridView1.DataSource = cc.getDanhSachCaTheoNVVaTheoKhoang(Globals.NV, a, b); } }