private void btnFilter_Click(object sender, EventArgs e) { try { int i = 0; tk.DateOne = DateTime.Parse(dtmTuNgay.Value.ToShortDateString()); tk.DateTwo = DateTime.Parse(dtmDenNgay.Value.ToShortDateString()); List <ThongKe> tklist = tkbll.ThongKePhieuXuatTheoNgayThang(tk); dgvThongKePhieuXuatHang.Rows.Clear(); foreach (ThongKe tks in tklist) { DataGridViewRow row = new DataGridViewRow(); row.CreateCells(dgvThongKePhieuXuatHang); row.Cells[0].Value = i + 1; row.Cells[1].Value = tks.MaSp.ToString(); row.Cells[2].Value = tks.TenSp.ToString(); row.Cells[3].Value = tks.TenLoai.ToString(); row.Cells[4].Value = tks.TenSx.ToString(); row.Cells[5].Value = tks.TenKh.ToString(); row.Cells[6].Value = tks.Slx.ToString(); row.Cells[7].Value = tks.TongTien.ToString(); row.Cells[8].Value = tks.PhanTram.ToString(); row.Cells[9].Value = tks.ThanhTien.ToString(); dgvThongKePhieuXuatHang.Rows.Add(row); ++i; } lbTong.Text = i.ToString(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }