public void AddActionModel(int index, ActionModel model)
 {
     if (model != null && index>=0 && index<_actions.Count)
     {
         _actions[index] = model;
     }
 }
 public void RemoveActionModel(ActionModel actionModel)
 {
     _actions.Remove(actionModel);
 }
 public void AddActionModel(ActionModel model)
 {
     _actions.Add(model);
 }