Question

我想在另一个程序集中找到My Project Razor Pages。为此，我写下面的代码：

public void ConfigureServices(IServiceCollection services)
{
    var adminAssembly = Assembly.Load(new AssemblyName("App"));
    services.AddMvc().AddApplicationPart(adminAssembly).AddRazorOptions(options =>
    {
        var previous = options.CompilationCallback;
        options.CompilationCallback = context =>
        {
            previous?.Invoke(context);

            context.Compilation = context.Compilation.AddReferences(
                MetadataReference.CreateFromFile(typeof(dodo).Assembly.Location));
        };
    });

    services.Configure<RazorViewEngineOptions>(options =>
    {
        options.FileProviders.Add(new EmbeddedFileProvider(Assembly.Load("App")));
        options.FileProviders.Add(new PhysicalFileProvider(@"C:\Users\soheil\Documents\Visual Studio 2017\Projects\WebApplication5\App"));
    });
}

我的解决方案：

devenv_2017-10-10_18-44-26

运行localhost:5000/SameTodo时获取以下错误：

缺少一个或多个编译引用。确保您的项目引用了Microsoft.NET.Sdk.Web＆＃39;和＆＃39; PreserveCompilationContext＆＃39; property未设置为false。

堆栈：

类型或命名空间名称＆＃39; SameTodoModel＆＃39;找不到（是你吗？缺少using指令或程序集引用？） + public global :: Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper Html {get;私人集;类型或命名空间名称＆＃39; SameTodoModel＆＃39; 无法找到（您是否错过了使用指令或程序集参考？） + public global :: Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary ViewData =＆gt; （全球:: Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary）的PageContext .ViewData？; 类型或命名空间名称＆＃39; SameTodoModel＆＃39;找不到（是你吗？缺少using指令或程序集引用？） + public SameTodoModel Model =＆gt; ViewData.Model;类型或命名空间名称＆＃39; SameTodoModel＆＃39;无法找到（你错过了吗？使用指令或程序集引用？） + public global :: Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary ViewData =＆gt; （全球:: Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary）的PageContext .ViewData;

并将PreserveCompilationContext设置为false但现在有效如何解决此问题？

Answer 1

public void ConfigureServices(IServiceCollection services)
{
    var adminAssembly = Assembly.Load(new AssemblyName("App"));
    services.AddMvc().AddApplicationPart(adminAssembly).AddRazorOptions(options =>
    {
        var previous = options.CompilationCallback;
        options.CompilationCallback = context =>
        {
            previous?.Invoke(context);

            var referenceAssemblies = AppDomain.CurrentDomain.GetAssemblies()
                .Where(x => !x.IsDynamic&& !string.IsNullOrEmpty(x.Location))
                .Select(x => MetadataReference.CreateFromFile(x.Location))
                .ToList();

            //add dynamic
            var dynamicAssembly = typeof(DynamicAttribute).Assembly;
                 referenceAssemblies.Add(MetadataReference.CreateFromFile(dynamicAssembly.Location));

            context.Compilation = context.Compilation.AddReferences(referenceAssemblies);
        };
    });

    services.Configure<RazorViewEngineOptions>(options =>
    {
        options.FileProviders.Add(new EmbeddedFileProvider(Assembly.Load("App")));
        options.FileProviders.Add(new PhysicalFileProvider(@"C:\Users\soheil\Documents\Visual Studio 2017\Projects\WebApplication5\App"));
    });
}

Answer 2

不使用新的AssemblyName，而是使用该程序集中类型的引用：

var adminAssembly = typeof(SameTodoModel).Assembly;

此外，错误消息显示：＆＃39; PreserveCompilationContext＆＃39; property未设置为false。

意思是它应该设置为true。

Answer 3

您是否需要在WebApplication5的_ViewImports.cshtml中使用@using语句？喜欢@using App.SameTodoModel

在另一个程序集

3 个答案: