public void Undo()
{
if (_mementos.Count == 0)
{
return;
}
var memento = _mementos.Last();
_mementos.Remove(memento);
try
{
_originator.Restore(memento);
}
catch (Exception)
{
Undo();
}
}
// Order to restore a previous state.
public void Undo()
{
if (_mementoes.Count == 0)
{
return;
}
var memento = _mementoes.Last();
_mementoes.Remove(memento);
try
{
_originator.Restore(memento);
}
catch (Exception e)
{
// If an exception occurs, try again with the next memento.
Console.WriteLine(e);
Undo();
}
}
public void Undo()
{
originator.Restore(history.Last());
history.RemoveAt(history.Count - 1);
}
