ASP.NET 找不到不同程序集中的核心 ViewComponents

Question

我正在尝试从不同的程序集中加载 ViewComponent，但在主项目中出现以下错误

InvalidOperationException: A view component named 'Pro.ItemViewComponent' could not be found. A view component must be a public non-abstract class, not contain any generic parameters, and either be decorated with 'ViewComponentAttribute' or have a class name ending with the 'ViewComponent' suffix. A view component must not be decorated with 'NonViewComponentAttribute'.

Library.csproj

<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<TargetFramework>netcoreapp2.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<None 
Remove="Views\Shared\Components\ContainerViewComponent\Default.cshtml"/>
<None Remove="Views\Shared\Components\ItemViewComponent\Default.cshtml" />
<None Remove="Views\Shared\_ViewImports.cshtml" />
</ItemGroup>

<ItemGroup>
<Content 
Include="Views\Shared\Components\ContainerViewComponent\Default.cshtml">
  <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
  <Pack>$(IncludeRazorContentInPack)</Pack>
</Content>
<Content Include="Views\Shared\Components\ItemViewComponent\Default.cshtml">
  <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
  <Pack>$(IncludeRazorContentInPack)</Pack>
</Content>
<Content Include="Views\Shared\_ViewImports.cshtml">
  <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
  <Pack>$(IncludeRazorContentInPack)</Pack>
</Content>
</ItemGroup>
<ItemGroup>
    <EmbeddedResource Include="Views/**/*.cshtml" />
</ItemGroup>
<ItemGroup>
  <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.1" />
</ItemGroup>

Startup.cs 在主项目中。

var assembly = typeof(Pro.ItemViewComponent).Assembly;
var embeddedFileProvider = new EmbeddedFileProvider(
    assembly,
    "Pro"
);

services.Configure<RazorViewEngineOptions>(options =>
{
    options.FileProviders.Add(embeddedFileProvider);
});

我在 Whosebug 中关注了很多文章和一些问题和答案，但我没有找到任何解决方案，我应该怎么做才能从不同的程序集中共享 ViewComponent？

Answer 1

问题在 Startup.cs 中的配置中非常简单，我不得不添加 services.AddMvc().AddApplicationPart(myAssembly); 完整配置如下。

var myAssembly = typeof(MyViewComponent).Assembly;

services.AddMvc().AddApplicationPart(myAssembly);

services.Configure<RazorViewEngineOptions>(options =>
 {
       options.FileProviders.Add(new EmbeddedFileProvider(myAssembly, "ComponentLib"));          
 });

ASP.NET 找不到不同程序集中的核心 ViewComponents

ASP.NET Core ViewComponents in different assembly can not be found

c#

assembly-references

asp.net-core-mvc

asp.net-core-viewcomponent

view-components

Library.csproj

Startup.cs 在主项目中。