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Snippet cross-links 8.0 (3) (#31283)
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‎aspnetcore/blazor/advanced-scenarios.md

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`PetDetails.razor`:
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:::code language="razor" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/Shared/advanced-scenarios/PetDetails.razor":::
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorSample_BlazorWebApp/Components/PetDetails.razor":::
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In the following `BuiltContent` component, the loop in the `CreateComponent` method generates three `PetDetails` components.
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:::moniker range=">= aspnetcore-8.0"
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```razor
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@page "/built-content"
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<h1>Build a component</h1>
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<div>
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@CustomRender
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</div>
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<button @onclick="RenderComponent">
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Create three Pet Details components
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</button>
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@code {
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private RenderFragment? CustomRender { get; set; }
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private RenderFragment CreateComponent() => builder =>
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{
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for (var i = 0; i < 3; i++)
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{
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builder.OpenComponent(0, typeof(PetDetails));
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builder.AddAttribute(1, "PetDetailsQuote", "Someone's best friend!");
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builder.CloseComponent();
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}
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};
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private void RenderComponent()
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{
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CustomRender = CreateComponent();
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}
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}
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```
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorSample_BlazorWebApp/Components/Pages/BuiltContent.razor":::
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:::moniker-end
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‎aspnetcore/blazor/blazor-ef-core.md

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:::moniker range=">= aspnetcore-8.0"
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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/Home.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/Home.razor" id="snippet1":::
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:::moniker-end
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:::moniker range=">= aspnetcore-7.0 < aspnetcore-8.0"
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:::code language="csharp" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::moniker-end
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:::moniker range=">= aspnetcore-6.0 < aspnetcore-7.0"
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:::code language="csharp" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::moniker-end
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:::moniker range=">= aspnetcore-5.0 < aspnetcore-6.0"
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:::code language="csharp" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::code language="csharp" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/Index.razor" id="snippet1":::
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:::moniker-end
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:::moniker range=">= aspnetcore-8.0"
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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/EditContact.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/EditContact.razor" id="snippet1":::
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:::code language="csharp" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::moniker-end
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:::moniker range=">= aspnetcore-6.0 < aspnetcore-7.0"
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:::code language="csharp" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::moniker range=">= aspnetcore-5.0 < aspnetcore-6.0"
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:::code language="csharp" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::code language="csharp" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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:::code language="razor" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet1":::
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Finally, [`OnInitializedAsync`](xref:blazor/components/lifecycle) is overridden to create a new context. In the sample app, [`OnInitializedAsync`](xref:blazor/components/lifecycle) loads the contact in the same method:
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:::moniker range=">= aspnetcore-8.0"
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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/EditContact.razor" id="snippet2":::
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorWebAppEFCore/Components/Pages/EditContact.razor" id="snippet2":::
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:::moniker range=">= aspnetcore-7.0 < aspnetcore-8.0"
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:::code language="csharp" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="razor" source="~/../blazor-samples/7.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="csharp" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="razor" source="~/../blazor-samples/6.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::moniker-end
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:::moniker range=">= aspnetcore-5.0 < aspnetcore-6.0"
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:::code language="csharp" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="razor" source="~/../blazor-samples/5.0/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="csharp" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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:::code language="razor" source="~/../blazor-samples/3.1/BlazorServerEFCoreSample/Pages/EditContact.razor" id="snippet2":::
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In the preceding example:
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‎aspnetcore/blazor/call-web-api.md

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`CallWebAPI.razor`:
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:::moniker range=">= aspnetcore-8.0"
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:::code language="razor" source="~/../blazor-samples/8.0/BlazorSample_WebAssembly/Pages/CallWebAPI.razor":::
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:::moniker-end
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:::moniker range="< aspnetcore-8.0"
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:::moniker-end
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## Handle errors
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Handle web API response errors in developer code when they occur. For example, <xref:System.Net.Http.Json.HttpClientJsonExtensions.GetFromJsonAsync%2A> expects a JSON response from the web API with a `Content-Type` of `application/json`. If the response isn't in JSON format, content validation throws a <xref:System.NotSupportedException>.

‎aspnetcore/blazor/components/dynamiccomponent.md

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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorSample_BlazorWebApp/ComponentMetadata.cs":::
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‎aspnetcore/blazor/components/index.md

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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorSample_BlazorWebApp/Components/Pages/CounterPartialClass.razor.cs":::
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:::code language="csharp" source="~/../blazor-samples/8.0/BlazorSample_BlazorWebApp/PanelBody.cs":::
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‎aspnetcore/blazor/components/lifecycle.md

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‎aspnetcore/blazor/file-downloads.md

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```razor
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@using System.IO
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@inject IJSRuntime JS
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<h1>File Download Example 1</h1>
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<button @onclick="DownloadFileFromStream">
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Download File From Stream
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</button>
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@code {
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<h1>File Download Example 2</h1>
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