fix RDG9 /8 (#30906)

* fix RDG9 /8

* fix RDG9 /8

* fix RDG9 /8

* fix RDG9 /8

* fix RDG9 /8

* fix RDG9 /8

* fix RDG9 /8

aspnetcore/fundamentals/aot/request-delegate-generator/diagnostics/rdg009.md

@@ -4,7 +4,7 @@ description: "Learn about analysis rule RDG009: Invalid nested AsParameters"
 author: captainsafia
 monikerRange: '>= aspnetcore-8.0'
 ms.author: safia
-ms.date: 9/15/2023
+ms.date: 11/1/2023
 uid: fundamentals/aot/request-delegate-generator/diagnostics/rdg009
 ---
 # RDG009: Invalid nested AsParameters
@@ -20,27 +20,15 @@ This diagnostic is emitted by the [Request Delegate Generator](/aspnet/core/fund
 
 ### Rule description
 
-Types that are used for surrogate binding via the  [`[AsParameters]`](xref:Microsoft.AspNetCore.Http.AsParametersAttribute) attribute must not contain nested types that are also annotated with the  [`[AsParameters]`](xref:Microsoft.AspNetCore.Http.AsParametersAttribute) attribute.
+Types that are used for surrogate binding via the  [`[AsParameters]`](xref:Microsoft.AspNetCore.Http.AsParametersAttribute) attribute must not contain nested types that are also annotated with the  [`[AsParameters]`](xref:Microsoft.AspNetCore.Http.AsParametersAttribute) attribute:
 
-<!--
-
-```razor
-var app = WebApplication.Create();
-
-var version = "v1";
-var route = $"/{version}/todos";
-
-app.MapGet("/vl/todos", () => Results.Ok([new Todo(1, "Write tests"), new Todo(2, "Fix tests")]));
-
-app.Run();
-
-record Todo(int Id, string Task);
-```
--->
+:::code language="csharp" source="~/../AspNetCore.Docs.Samples/fundamentals/aot/diagnostics/Rdg9/Program.cs" id="snippet_1f" highlight="19,31":::
 
 ## How to fix violations
 
-Remove the nested nested `AsParameters` attribute.
+Remove the nested nested `AsParameters` attribute:
+
+:::code language="csharp" source="~/../AspNetCore.Docs.Samples/fundamentals/aot/diagnostics/Rdg9/Program.cs" id="snippet_1" highlight="17,29":::
 
 ## When to suppress warnings
 

aspnetcore/toc.yml

@@ -245,6 +245,8 @@ items:
                 uid: fundamentals/aot/request-delegate-generator/diagnostics/rdg007
               - name: RDG008
                 uid: fundamentals/aot/request-delegate-generator/diagnostics/rdg008
+              - name: RDG009
+                uid: fundamentals/aot/request-delegate-generator/diagnostics/rdg009
               - name: RDG010
                 uid: fundamentals/aot/request-delegate-generator/diagnostics/rdg010
               - name: RDG011