private void dataGridView_OrderList_SelectionChanged(object sender, EventArgs e) { if (dataGridView_OrderList.CurrentRow != null) { CurrentOrderID = dataGridView_OrderList.CurrentRow.Cells[1].Value.ToString(); if (CurrentOrderID != "") { bs_OrderItem.DataSource = service.GetItem(CurrentOrderID); bs_OrderItem.ResetBindings(false); tb_Customer.Text = dataGridView_OrderList.CurrentRow.Cells[0].Value.ToString(); } } }