public void CopyData(LoadOrder.ChoiceLoadOrder data) { Save save = new Save(); List <Order> listOrder = new List <Order>(); switch (data) { case LoadOrder.ChoiceLoadOrder.Sql: listOrder = load.LoadOrderList(LoadOrder.ChoiceLoadOrder.Sql); save.SaveOrderList(Save.ChoiceSaveOrder.Txt, listOrder); break; case LoadOrder.ChoiceLoadOrder.Txt: listOrder = load.LoadOrderList(LoadOrder.ChoiceLoadOrder.Txt); save.SaveOrderList(Save.ChoiceSaveOrder.Sql, listOrder); break; } }