public void Undo()
{
IUndoRedoCommand command = _undoStack.Pop();
_redoStack.Push(command);
command.Unexecute();
UpdateCommandStatus();
}
/// <summary>
/// Отменяет предыдущую команду.
/// </summary>
public void Undo()
{
if (CanUndo)
{
IUndoRedoCommand command = (IUndoRedoCommand)_executedCommandList[_currentCommandIndex];
try
{
command.Unexecute();
_currentCommandIndex--;
}
catch (Exception ex)
{
throw;// new Exception(string.Format("Command {0} have not unexecuted", command.Name), ex);
}
}
}