// Function Tìm ID SIM private void search() { if (bill.SearchByIDSIM(txt_search.Text) == null) { Print_MessageBox("Không tìm thấy dữ liệu", "Kết quả"); } else { txt_id.Text = gridView1.GetFocusedRowCellValue("ID_BILL").ToString(); txt_SIM.Text = gridView1.GetFocusedRowCellValue("ID_SIM").ToString(); txt_dateex.Text = gridView1.GetFocusedRowCellValue("DATE_EXPORT").ToString(); txt_datecut.Text = gridView1.GetFocusedRowCellValue("DATE_CUT").ToString(); txt_postage.Text = gridView1.GetFocusedRowCellValue("POSTAGE").ToString(); txt_fare.Text = gridView1.GetFocusedRowCellValue("FARE").ToString(); if (Convert.ToBoolean(gridView1.GetFocusedRowCellValue("STATUS")) == true) { txt_status.Text = "Đã thanh toán"; } else { txt_status.Text = "Chưa thanh toán"; } } }