public MementoCard popOutMememtoCard()
{
MementoCard mementoCard = new MementoCard(new List <ListViewItem>());
if (saveCardStorage.Count > 0)
{
int lastIndex = saveCardStorage.Count - 1;
mementoCard = saveCardStorage[lastIndex];
saveCardStorage.RemoveAt(lastIndex);
}
return(mementoCard);
}
public void saveMememtoCard(MementoCard item)
{
saveCardStorage.Add(item);
}
public void undo(MementoCard mem)
{
this.items = mem.items;
}