/// <summary>
/// Removes and executes an <see cref="IUndoableAction"/> beginning from the top of undo stack
/// till the rollback point is reached.
/// </summary>
/// <exception cref="ArgumentException">
/// Undo stack doesn't contain <see cref="IRollbackPoint"/>.
/// </exception>
public void RollbackTo(IRollbackPoint toPoint)
{
Check.Requires(
ContainsRollbackPoint(toPoint),
ExceptionTexts.RollbackPointNotFound
);
_rollbackPoints.Remove(toPoint);
_undoing = true;
IUndoableAction action;
action = _actionStack.Pop();
while (!Object.ReferenceEquals(action, toPoint))
{
action.Undo();
action = _actionStack.Pop();
}
_actionStack.Push(action);
_undoing = false;
}
public void RollbackTo_WhenCollectionLoadedAfterRollbackPoint_DoesNotClearCollection()
{
Employee employee = new Employee();
employee.Projects.Add(new Project());
EmployeeVM.InitializeFrom(employee);
IRollbackPoint rollbackPoint = EmployeeVM.UndoManager.GetRollbackPoint();
ViewModelAssert.IsNotLoaded(EmployeeVM, x => x.Projects);
EmployeeVM.Load(x => x.Projects);
Assert.AreEqual(1, EmployeeVM.Projects.Count);
EmployeeVM.UndoManager.RollbackTo(rollbackPoint);
ViewModelAssert.IsLoaded(EmployeeVM, x => x.Projects);
Assert.AreEqual(1, EmployeeVM.Projects.Count);
}
public void RollbackTo(IRollbackPoint point)
{
Kernel.UndoManager.RollbackTo(point);
}
public bool ContainsRollbackPoint(IRollbackPoint point)
{
Check.NotNull(point, nameof(point));
return(_actionStack.Contains(point));
}
