C#•2y ago

❔ How do I use a .cshtml (or Razor View) from a class library?

I wanted to make a modular ASP Core project, I wanted to make some kind of 'plugin system' for me project, basically some Razor views will be stored in class libraries, but currently I don't know how to do it, I followed the instruction at the Microsoft docs and Controllers work, I was able to add a controller class to my library and make it return a 200 OK on a specific route, however Razor views don't work, the following below is my code for importing .dll files

var pluginAssemblies =
    Directory.GetFiles(Path.Combine(AppContext.BaseDirectory), "plugin/*.dll", SearchOption.AllDirectories);

// Load DLL plugins.
foreach (var pluginAssembly in pluginAssemblies)
{
    try
    {
        var assemblyLoadContext = new AssemblyLoadContext(Path.GetFileName(pluginAssembly));
        var assembly = assemblyLoadContext.LoadFromAssemblyPath(pluginAssembly);
        var pluginTypes = assembly.GetTypes().Where(type => typeof(PluginBase).IsAssignableFrom(type));

        foreach (var pluginType in pluginTypes)
        {
            builder.Services.AddScoped(typeof(IPlugin), pluginType);
            builder.Services.AddControllersWithViews()
                .AddApplicationPart(pluginType.Assembly)
                .AddRazorRuntimeCompilation();
            
            builder.Services.Configure<MvcRazorRuntimeCompilationOptions>(o =>
            {
                o.FileProviders.Add(new EmbeddedFileProvider(pluginType.Assembly));
            });

            builder.Services.AddRazorPages().AddApplicationPart(pluginType.Assembly)
                .AddRazorRuntimeCompilation();
        }
    }
    catch (Exception ex)
    {
    }
}

var pluginAssemblies =
    Directory.GetFiles(Path.Combine(AppContext.BaseDirectory), "plugin/*.dll", SearchOption.AllDirectories);

// Load DLL plugins.
foreach (var pluginAssembly in pluginAssemblies)
{
    try
    {
        var assemblyLoadContext = new AssemblyLoadContext(Path.GetFileName(pluginAssembly));
        var assembly = assemblyLoadContext.LoadFromAssemblyPath(pluginAssembly);
        var pluginTypes = assembly.GetTypes().Where(type => typeof(PluginBase).IsAssignableFrom(type));

        foreach (var pluginType in pluginTypes)
        {
            builder.Services.AddScoped(typeof(IPlugin), pluginType);
            builder.Services.AddControllersWithViews()
                .AddApplicationPart(pluginType.Assembly)
                .AddRazorRuntimeCompilation();
            
            builder.Services.Configure<MvcRazorRuntimeCompilationOptions>(o =>
            {
                o.FileProviders.Add(new EmbeddedFileProvider(pluginType.Assembly));
            });

            builder.Services.AddRazorPages().AddApplicationPart(pluginType.Assembly)
                .AddRazorRuntimeCompilation();
        }
    }
    catch (Exception ex)
    {
    }
}

1 Reply

Accord•2y ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

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❔ How do I use a .cshtml (or Razor View) from a class library?