private void LoadListBillNoPayment() { var list = BillBUS.GetAllBillNoPament(); lstBillNoPayment.Items.Clear(); int i = 0; foreach (var item in list) { ListViewItem listitem = new ListViewItem { Text = "#" + (i + 1).ToString() }; listitem.SubItems.Add(item.ToString()); listitem.Tag = item; lstBillNoPayment.Items.Add(listitem); i++; } }