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

  <PropertyGroup>

    <TargetFramework>netcoreapp2.2</TargetFramework>

  </PropertyGroup>

  <ItemGroup>

    <Content Include="Views\MyShared\Index.cshtml">

      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>

    </Content>

  </ItemGroup>

  <ItemGroup>

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

  </ItemGroup>

  <ItemGroup>

    <PackageReference Include="Microsoft.AspNetCore.App" />

  </ItemGroup>

</Project>

    public class StartupViews

    {

        public StartupViews(IConfiguration configuration)

        {

            Configuration = configuration;

        }

        public IConfiguration Configuration { get; }

        #region snippet

        public void ConfigureServices(IServiceCollection services)

        {

            services.Configure<RazorViewEngineOptions>(options =>

            {

                options.FileProviders.Add(

                 new EmbeddedFileProvider(typeof(MySharedController).GetTypeInfo().Assembly));

            });

            // Requires using System.Reflection;

            var assembly = typeof(MySharedController).GetTypeInfo().Assembly;

            services.AddMvc()

                .AddApplicationPart(assembly)

                .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

        }

        #endregion

        public void Configure(IApplicationBuilder app, IHostingEnvironment env)

        {

            if (env.IsDevelopment())

            {

                app.UseDeveloperExceptionPage();

            }

            else

            {

                app.UseExceptionHandler("/Home/Error");

                app.UseHsts();

            }

            app.UseHttpsRedirection();

            app.UseStaticFiles();

            app.UseCookiePolicy();

            app.UseMvc(routes =>

            {

                routes.MapRoute(

                    name: "default",

                    template: "{controller=Home}/{action=Index}/{id?}");

            });

        }

    }