如何在ASP.NET Core MVC中重用视图(页面)?

问题描述：

在ASP.NET Core MVC之前，我们将使用RazorGenerator将视图编译为程序集，并通过引入自定义ViewEngine从其他程序集而不是文件系统中加载视图，在其他项目中重用这些视图.

Before ASP.NET Core MVC, we would use RazorGenerator to compile views into assemblies, and we would reuse those views in another project, by introducing a custom ViewEngine that would load the view from the assembly instead of file-system.

在ASP.NET Core MVC中，存在预编译视图的概念，它在2.0版本中是开箱即用的，并创建一个约定为 project_name的程序集.PrecompiledViews.dll .

In ASP.NET Core MVC there is this concept of pre-compiled views and it works out of the box for version 2.0 and creates an assembly that by convention has the name of project_name.PrecompiledViews.dll.

我有两个问题，尽管我在Google上找不到答案. 首先，我不知道如何在另一个项目中重用该DLL.就像我在CompanyBase.dll中有About.cshtml页面一样，如何在ProjectAlpha中重用该页面/视图?

I have two problems though that I can't find an answer for on Google. First I don't know how to reuse that DLL in another project. Like if I have About.cshtml page in CompanyBase.dll, how can I reuse that page/view in ProjectAlpha?

而且我也不想在发布时进行视图编译.我该如何更改它才能在构建中发生?

And also I don't want view compilation to happen on publish. How can I change it to happen on build?

答

有一个

应用程序部分是对应用程序资源的抽象，可以从中发现控制器，视图组件或标签助手之类的MVC功能.

An Application Part is an abstraction over the resources of an application, from which MVC features like controllers, view components, or tag helpers may be discovered.

将以下内容添加到.csproj(适用于具有视图的库)中，以将视图作为嵌入式资源包含到dll中:

Add the following into .csproj (for your library with views) to include views as embedded resources into the dll:

<ItemGroup>
   <EmbeddedResource Include="Views\**\*.cshtml" /> 
</ItemGroup>

然后将程序集添加为应用程序零件并注册ViewComponentFeatureProvider以进行View发现:

then add assembly as app part and register the ViewComponentFeatureProvider for View discovery:

// using System.Reflection;
// using Microsoft.AspNetCore.Mvc.ApplicationParts;
// using Microsoft.AspNetCore.Mvc.ViewComponents;

public void ConfigureServices(IServiceCollection services)
{
     ...
     var assembly = typeof(ClassInYourLibrary).GetTypeInfo().Assembly;
     var part = new AssemblyPart(assembly);

     services.AddMvc()
             .ConfigureApplicationPartManager(p => {
                p.ApplicationParts.Add(part);
                p.FeatureProviders.Add(new ViewComponentFeatureProvider());
             });
}

另一种方法是使用EmbeddedFileProvider. 此SO答案中介绍了这种方法

Another way is to use the EmbeddedFileProvider. This approach is described in this SO answer.

如何在ASP.NET Core MVC中重用视图(页面)?

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