private void WireUpLists() { allEquipments = sql.GetAllEquipments(); if (User.GetType == 2 || User.GetType == 3) { storages = sql.getAllStoragesInSpecificStore(User); } else if (User.GetType == 4) { storages = sql.getAllStorages(); } comboBoxEquipment.DataSource = allEquipments; comboBoxEquipment.DisplayMember = "Name"; comboBoxStorage.DataSource = storages; comboBoxStorage.DisplayMember = "StorageName"; listBoxEquipment.DisplayMember = "FullEquipmentName"; }