c# - .NET核心3.0 : Razor views don't automatically recompile on change

Question

根据the documentation默认情况下，Razor View 应根据 ASP.NET Core 3.0 本地环境的更改重新编译。

但是，我的项目并没有在本地执行此操作。如果我在本地调试时更改 View 并刷新，则不会反射(reflect)更改。我必须停止解决方案，重新运行，然后查看更改。

我正在 Visual Studio 2019 上使用 Razor 页面的 ASP.NET Core 3.0.0 Preview 2 上的默认 ASP.NET Core Web 应用程序模板上执行此操作。知道我是否需要更改设置才能启用此功能吗？

Answer 1

对于 ASP.NET Core 3 发行版本:

   services.AddControllersWithViews().AddRazorRuntimeCompilation();

https://learn.microsoft.com/en-us/aspnet/core/mvc/views/view-compilation?view=aspnetcore-3.0

它也可以有条件地仅针对本地开发启用，引用自链接:

Runtime compilation can be enabled such that it's only available forlocal development. Conditionally enabling in this manner ensures thatthe published output:

Uses compiled views.
Is smaller in size.
Doesn't enable file watchersin production.

   public Startup(IConfiguration configuration, IWebHostEnvironment env)
    {
        Configuration = configuration;
        Env = env;
    }

    public IWebHostEnvironment Env { get; set; }
    public IConfiguration Configuration { get; }

    public void ConfigureServices(IServiceCollection services)
    {
        IMvcBuilder builder = services.AddRazorPages();

#if DEBUG
            if (Env.IsDevelopment())
            {
                builder.AddRazorRuntimeCompilation();
            }
#endif
    }