Catel.MVVM.Views.ViewStack.NotifyThatParentIsReadyToAcceptLoadedMessages C# (CSharp) Метод

        public void NotifyThatParentIsReadyToAcceptLoadedMessages()
        {
            MarkAsLoaded();

            CheckForOutdatedChildren();

            foreach (var child in _children)
            {
                if (!child.IsOutdated)
                {
                    child.NotifyThatParentIsReadyToAcceptLoadedMessages();
                }
            }
        }

        private void AddViewAfterLoaded(UninitializedViewInfo uninitializedViewInfo)
        {
            var isTopViewStack = true;

            var       viewLoadState = uninitializedViewInfo.ViewLoadState;
            var       view          = viewLoadState.View;
            ViewStack viewStack     = null;

            var parent = view.FindParentByPredicate(x => x is IView) as FrameworkElement;

            if (parent != null)
            {
                if (_uninitializedViews.ContainsKey(parent))
                {
                    // We have a different uninitialized view that is the parent
                    var uninitializedParent = _uninitializedViews[parent];
                    uninitializedParent.ViewStack.AddChild(uninitializedViewInfo.ViewStack, uninitializedParent.ViewStack);

                    isTopViewStack = false;
                }
                else
                {
                    // We are now listed to be added to the visual tree
                    foreach (var existingViewStack in _viewStacks)
                    {
                        if (existingViewStack.ContainsView((IView)parent))
                        {
                            var viewAsFrameworkElement = view as FrameworkElement;
                            if (viewAsFrameworkElement != null && _uninitializedViews.ContainsKey(viewAsFrameworkElement))
                            {
                                // This happens when we are called from OnFrameworkElementLoaded but out parent wasn't updated yet
                                existingViewStack.AddChild(_uninitializedViews[viewAsFrameworkElement].ViewStack, existingViewStack);
                            }
                            else
                            {
                                existingViewStack.AddChild(view, existingViewStack);
                            }


                            viewStack      = existingViewStack;
                            isTopViewStack = false;
                            break;
                        }
                    }
                }
            }

            if (isTopViewStack)
            {
                var topViewStack = uninitializedViewInfo.ViewStack;

                topViewStack.ViewStackLoaded   += OnViewStackLoaded;
                topViewStack.ViewStackUnloaded += OnViewStackUnloaded;

                _viewStacks.Add(topViewStack);

                viewStack = topViewStack;
            }

            if (viewStack != null)
            {
                viewStack.NotifyThatParentIsReadyToAcceptLoadedMessages();
            }
        }