Razor 如何在ASP.NET核心MVC中重用视图（页面）？

在ASP.NET Core MVC之前，我们将使用RazorGenerator将视图编译成程序集，并在另一个项目中重用这些视图，方法是引入一个自定义视图引擎，该引擎将从程序集而不是文件系统加载视图

// 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());
             });
}

在ASP.NET Core MVC中，预编译视图的概念是，，它适用于2.0版，并创建一个程序集，按照惯例，该程序集的名称为project_name.PrecompiledViews.dll

// 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());
             });
}

我有两个问题，虽然我找不到一个关于谷歌的答案。 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，我如何在

ProjectAlpha

中重用该页面/视图

// 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());
             });
}

而且我不希望视图编译在发布时发生。如何将其更改为在构建时发生？

ASP.NET Core中有一个概念：

// 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());
             });
}

应用程序部分是对应用程序资源的抽象，可以从中发现MVC特性，如控制器、视图组件或标记帮助器

// 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());
             });
}

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

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

// 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

。此方法如中所述。

ASP.NET核心中有一个概念：

// 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());
             });
}

应用程序部分是对应用程序资源的抽象，可以从中发现MVC特性，如控制器、视图组件或标记帮助器

// 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());
             });
}

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

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

// 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

。此方法在中进行了说明。

如果要使用来自其他程序集的视图，除了要使用ViewComponentFeatureProvider外，还必须使用EmbeddedFileProvider

// 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());
             });
}

因此，完整的ConfigureServices应该类似于：

// 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());
             });
}

        ...
        var assembly = typeof( Iramon.Web.Common.ViewComponents.ActiveAccountViewComponent).GetTypeInfo().Assembly;
        var part = new AssemblyPart(assembly);

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

        var embeddedFileProvider = new EmbeddedFileProvider(
            assembly
        );

        //Add the file provider to the Razor view engine
        services.Configure<RazorViewEngineOptions>(options =>
        {                
            options.FileProviders.Add(embeddedFileProvider);
        });    

。。。
var assembly=typeof（Iramon.Web.Common.ViewComponents.ActiveAccountViewComponent.GetTypeInfo（）.assembly；
var part=新的组装件（组装件）；
services.AddMvc（）
.ConfigureApplicationPartManager（p=>{
p、 应用程序部件。添加（部件）；
p、 添加（新的ViewComponentFeatureProvider（））；
});        
var embeddedFileProvider=新的embeddedFileProvider(
装配
);
//将文件提供程序添加到Razor视图引擎
配置（选项=>
{                
options.FileProviders.Add（embeddedFileProvider）；
});    

如果要使用来自其他程序集的视图，则必须在ViewComponentFeatureProvider中使用嵌入式文件提供程序

// 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());
             });
}

因此，完整的ConfigureServices应该类似于：

// 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());
             });
}

        ...
        var assembly = typeof( Iramon.Web.Common.ViewComponents.ActiveAccountViewComponent).GetTypeInfo().Assembly;
        var part = new AssemblyPart(assembly);

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

        var embeddedFileProvider = new EmbeddedFileProvider(
            assembly
        );

        //Add the file provider to the Razor view engine
        services.Configure<RazorViewEngineOptions>(options =>
        {                
            options.FileProviders.Add(embeddedFileProvider);
        });    

。。。
var assembly=typeof（Iramon.Web.Common.ViewComponents.ActiveAccountViewComponent.GetTypeInfo（）.assembly；
var part=新的组装件（组装件）；
services.AddMvc（）
.ConfigureApplicationPartManager（p=>{
p、 应用程序部件。添加（部件）；
p、 添加（新的ViewComponentFeatureProvider（））；
});        
var embeddedFileProvider=新的embeddedFileProvider(
装配
);
//将文件提供程序添加到Razor视图引擎
配置（选项=>
{                
options.FileProviders.Add（embeddedFileProvider）；
});    

我成功地使用以下框架将视图编译成dll：

// 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());
             });
}

// 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());
             });
}

---

整个框架可能对您没有用处，但您肯定可以分析源代码，看看该框架是如何实现的。

我已经成功地使用以下框架将视图编译到dll中：

// 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());
             });
}

// 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());
             });
}

---

整个框架可能对您没有用处，但您肯定可以分析源代码，看看该框架是如何实现的。

亲爱的@Set，我遇到了这个错误，两个星期以来我都无法解决这个问题：找不到包“整体主义.框架”的编译库位置。我如何查看DLL的嵌入式资源？我的意思是，我正在使用

ildasm

查看DLL包的内部，但我看到的只是代码，而我看不到资源。根据我将

Microsoft.AspNetCore.all

更改为

2.0.3

版本，至少我不再有那个错误了。现在我有一个错误，

cshtml布局找不到

。亲爱的@Set，我收到了这个错误，两个星期以来我都无法解决这个问题：找不到包'Holism.Framework'的编译库位置。我如何查看DLL的嵌入资源？我的意思是，我正在使用

ildasm

查看DLL包的内部，但我看到的只是代码，而我看不到资源。根据我将

Microsoft.AspNetCore.all

更改为

2.0.3

版本，至少我不再有那个错误了。现在我有一个错误，

cshtml布局找不到

。

// 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());
             });
}