public HistoryLaboratoryExamination(int IDP) { idpat = IDP; InitializeComponent(); var a = SQLDoc.GetLab(IDP); Mainlist.Items.Clear(); foreach (var order in a) { ListViewItem lvi = new ListViewItem(order.laboratoryExaminationTable.Id_Examination.ToString()); lvi.SubItems.Add(order.appointmentTable.Date_Appointment.ToString()); //data lvi.SubItems.Add(order.staffTable.Surname); //nazwisko lekarza lvi.SubItems.Add(order.laboratoryExaminationTable.State); //stan Mainlist.Items.Add(lvi); } Mainlist.FullRowSelect = true; Mainlist.GridLines = true; }