private void btnAddItem_Click(object sender, EventArgs e) { FormItemUpdate formItemEdit = new FormItemUpdate(new OrderItem()); try { if (formItemEdit.ShowDialog() == DialogResult.OK) { //int index = 0; //if (CurrentOrder.OrderItems.Count != 0) //{ // index = CurrentOrder.OrderItems.Max(i => i.OrderItemID) + 1; //} using (var db = new OScontext()) { formItemEdit.OrderItem.OrderItemID = db.OrderItems.Count() + 1; int newID = db.Goods.Count() + 1; formItemEdit.OrderItem.GoodsItem.GoodsID = newID.ToString(); } CurrentOrder.AddItem(formItemEdit.OrderItem); itemsBindingSource.ResetBindings(false); } } catch (Exception e2) { MessageBox.Show(e2.Message); } }
private void EditItem() { OrderItem orderItem = itemsBindingSource.Current as OrderItem; if (orderItem == null) { MessageBox.Show("请选择一个订单项进行修改"); return; } FormItemUpdate formItemEdit = new FormItemUpdate(orderItem); if (formItemEdit.ShowDialog() == DialogResult.OK) { itemsBindingSource.ResetBindings(false); } }