Feedback: use RouteView.

Author: ilonatommy

src/Components/Components/src/Routing/Router.cs

@@ -398,23 +398,14 @@ private void RenderNotFound()
         {
             if (NotFoundPage != null)
             {
+                builder.OpenComponent<RouteView>(0);
+                builder.AddAttribute(1, nameof(RouteView.RouteData),
+                    new RouteData(NotFoundPage, _emptyParametersDictionary));
                 if (_notFoundLayoutType is Type layoutType)
                 {
-                    // Directly instantiate the layout type, supplying the NotFoundPage as the Body
-                    builder.OpenComponent(0, layoutType);
-                    builder.AddAttribute(1, LayoutComponentBase.BodyPropertyName,
-                        (RenderFragment)(childBuilder =>
-                        {
-                            childBuilder.OpenComponent(2, NotFoundPage);
-                            childBuilder.CloseComponent();
-                        }));
-                    builder.CloseComponent();
-                }
-                else
-                {
-                    builder.OpenComponent(0, NotFoundPage);
-                    builder.CloseComponent();
+                    builder.AddAttribute(2, nameof(RouteView.DefaultLayout), layoutType);
                 }
+                builder.CloseComponent();
             }
             else if (NotFound != null)
             {