FContainer.AddChildAtIndex C# (CSharp) Метод

    public void AddChildAtIndex(FNode node, int newIndex)
    {
        int nodeIndex = _childNodes.IndexOf(node);

        if(newIndex > _childNodes.Count) //if it's past the end, make it at the end
        {
            newIndex = _childNodes.Count;
        }

        if(nodeIndex == newIndex) return; //if it's already at the right index, just leave it there

        if(nodeIndex == -1) //add it if it's not a child
        {
            node.HandleAddedToContainer(this);

            _childNodes.Insert(newIndex, node);

            if(_isOnStage)
            {
                node.stage = _stage;
                node.HandleAddedToStage();
            }
        }
        else //if node is already a child, move it to the desired index
        {
            _childNodes.RemoveAt(nodeIndex);

            if(nodeIndex < newIndex)
            {
                _childNodes.Insert(newIndex-1, node); //gotta subtract 1 to account for it moving in the order
            }
            else
            {
                _childNodes.Insert(newIndex, node);
            }

            if(_isOnStage) _stage.HandleFacetsChanged();
        }
    }

 public void MoveToBack()
 {
     if (_container != null)
     {
         _container.AddChildAtIndex(this, 0);
     }
 }