Blazor code example updates (#33786)

Author: guardrex

aspnetcore/blazor/advanced-scenarios.md

@@ -41,7 +41,7 @@ In <xref:Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder> methods wi
 
 :::moniker range="< aspnetcore-8.0"
 
-:::code language="razor" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/Pages/advanced-scenarios/BuiltContent.razor" highlight="6,16-24,28":::
+:::code language="razor" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/Pages/advanced-scenarios/BuiltContent.razor":::
 
 :::moniker-end
 

aspnetcore/blazor/blazor-ef-core.md

@@ -62,31 +62,31 @@ The sample uses a local [SQLite](https://www.sqlite.org/index.html) database so
 
 :::moniker range=">= aspnetcore-8.0"
 
-:::code language="json" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/appsettings.Development.json" highlight="8":::
+:::code language="json" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/appsettings.Development.json":::
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-7.0 < aspnetcore-8.0"
 
-:::code language="json" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/appsettings.Development.json" highlight="8":::
+:::code language="json" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/appsettings.Development.json":::
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-6.0 < aspnetcore-7.0"
 
-:::code language="json" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/appsettings.Development.json" highlight="8":::
+:::code language="json" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/appsettings.Development.json":::
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-5.0 < aspnetcore-6.0"
 
-:::code language="json" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/appsettings.Development.json" highlight="8":::
+:::code language="json" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/appsettings.Development.json":::
 
 :::moniker-end
 
 :::moniker range="< aspnetcore-5.0"
 
-:::code language="json" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/appsettings.Development.json" highlight="8":::
+:::code language="json" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/appsettings.Development.json":::
 
 :::moniker-end
 

aspnetcore/blazor/call-web-api.md

@@ -61,10 +61,8 @@ The following example obtains a list of movies from the `/movies` endpoint:
 ```csharp
 public class ClientMovieService(HttpClient http) : IMovieService
 {
-    public async Task<Movie[]> GetMoviesAsync(bool watchedMovies)
-    {
-        return await http.GetFromJsonAsync<Movie[]>("movies") ?? [];
-    }
+    public async Task<Movie[]> GetMoviesAsync(bool watchedMovies) => 
+        await http.GetFromJsonAsync<Movie[]>("movies") ?? [];
 }
 ```
 
@@ -75,12 +73,10 @@ The following example obtains a list of movies:
 ```csharp
 public class ServerMovieService(MovieContext db) : IMovieService
 {
-    public async Task<Movie[]> GetMoviesAsync(bool watchedMovies)
-    {
-        return watchedMovies ? 
-            await db.Movies.Where(t => t.IsWatched).ToArrayAsync() : 
-            await db.Movies.ToArrayAsync();
-    }
+    public async Task<Movie[]> GetMoviesAsync(bool watchedMovies) => 
+        watchedMovies ? 
+        await db.Movies.Where(t => t.IsWatched).ToArrayAsync() : 
+        await db.Movies.ToArrayAsync();
 }
 ```
 
@@ -583,10 +579,8 @@ namespace BlazorSample.Client;
 
 public class ForecastHttpClient(HttpClient http)
 {
-    public async Task<Forecast[]> GetForecastAsync()
-    {
-        return await http.GetFromJsonAsync<Forecast[]>("forecast") ?? [];
-    }
+    public async Task<Forecast[]> GetForecastAsync() => 
+        await http.GetFromJsonAsync<Forecast[]>("forecast") ?? [];
 }
 ```
 

aspnetcore/blazor/components/cascading-values-and-parameters.md

@@ -54,6 +54,7 @@ builder.Services.AddCascadingValue(sp =>
 {
     var dalek = new Dalek { Units = 789 };
     var source = new CascadingValueSource<Dalek>(dalek, isFixed: false);
+
     return source;
 });
 ```

aspnetcore/blazor/components/control-head-content.md

@@ -32,13 +32,13 @@ The following example sets the page's title and description using Razor.
 
 :::moniker range=">= aspnetcore-7.0 < aspnetcore-8.0"
 
-:::code language="razor" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/Pages/control-head-content/ControlHeadContent.razor" highlight="13,15-17":::
+:::code language="razor" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/Pages/control-head-content/ControlHeadContent.razor":::
 
 :::moniker-end
 
 :::moniker range="< aspnetcore-7.0"
 
-:::code language="razor" source="~/../blazor-samples/6.0/BlazorSample_WebAssembly/Pages/control-head-content/ControlHeadContent.razor" highlight="13,15-17":::
+:::code language="razor" source="~/../blazor-samples/6.0/BlazorSample_WebAssembly/Pages/control-head-content/ControlHeadContent.razor":::
 
 :::moniker-end