public void InHD() { ExcelExport ex = new ExcelExport(); if (dgvCTHD.Rows.Count == 0) { MessageBox.Show("Khong co du lieu de Xuat"); return; } List <INHOADON> plistdiem = new List <INHOADON>(); int Stt = 1; string path = ""; foreach (DataGridViewRow item in dgvCTHD.Rows) { INHOADON d = new INHOADON(); d.MANUOC = item.Cells[0].Value.ToString(); d.TENNUOC = item.Cells[1].Value.ToString(); d.SOLUONG = int.Parse(item.Cells[2].Value.ToString()); d.DONGIA = double.Parse(item.Cells[3].Value.ToString()); d.THANHTIEN = double.Parse(item.Cells[4].Value.ToString()); d.STT = Stt.ToString(); Stt++; plistdiem.Add(d); path = string.Empty; ex.ExportKhoa(plistdiem, ref path, false, txtMaHD.Text, txtNgayLap.Text, cboNV.Text, cboBan.Text, double.Parse(txtTongTien.Text)); } ex.OpenFile(path); }