Signum.Windows.DataBorder.RecalculateVisibility C# (CSharp) Method

        private void RecalculateVisibility(object oldValue, object newValue)
        {
            if(AutoChild)
            {
                // when datacontext change is fired but its not loaded, it's quite possible that some Common.Routes are not working yet
                if (newValue == null/* || !IsLoaded*/) 
                    Child = null;
                else
                {
                    EntitySettings es = Navigator.Manager.EntitySettings.TryGetC(newValue.GetType());
                    if (es == null)
                        Child = new TextBox
                        {
                            Text = "No EntitySettings for {0}".FormatWith(newValue.GetType()),
                            Foreground = Brushes.Red,
                            FontWeight = FontWeights.Bold
                        };
                    else
                        Child = es.CreateView((ModifiableEntity)newValue, Common.GetPropertyRoute(this)); 
                }
            }
            if (Child != null)
            {
                if (newValue == null)
                    Child.Visibility = Visibility.Hidden;
                else
                    Child.Visibility = Visibility.Visible;

                if (oldValue != null && newValue != null)
                    Child.BeginAnimation(UIElement.OpacityProperty, animation);
            }
        }
    }