Why my View localization failed in .net core? - asp.net-core

Question

I followed the Globalization and localization tutorial by Microsoft in https://youtu.be/IAegSBI5lPk?t=2277
And here is my code
startup.cs:
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc()
.AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix,
options => options.ResourcesPath = "Resources");
services.AddLocalization(options => options.ResourcesPath = "Resources");
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseBrowserLink();
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Error");
}
var SupportedCultures = new List<CultureInfo> {
new CultureInfo("en"),
new CultureInfo("zh-Hans"),
new CultureInfo("zh-Hant")
};
var options = new RequestLocalizationOptions
{
DefaultRequestCulture = new RequestCulture("en"),
SupportedCultures = SupportedCultures,
SupportedUICultures = SupportedCultures
};
app.UseRequestLocalization(options);
app.UseStaticFiles();
app.UseMvc();
}
index.cshtml:
#page
#inject IViewLocalizer Localizer
#using Microsoft.AspNetCore.Mvc.Localization
#model IndexModel
#{
ViewData["Title"] = "Home page";
}
#Localizer["TitleString"]
Here is the file list:
And here is the detial of Index.en.resx
Finally when it runs,it turns out to be this:
The #Localizer["TitleString"] do not display 'HelloWorld' correctly but display 'TitleString'.
I think maybe I am missing something,but I don't konw what is the problem.
Would you please like to help me?Thank you.

Answer 1

Resource file naming and placement is crucial for correct locating of corresponding resources. You set ResourcesPath to Resources directory. You should put it not under Pages but in the project root (on the same level where Pages directory resides). Then you should either name resource file Pages.Index.en.resx or put it inside Resources/Pages subdirectory. Here is the correct placement of resource file for Index page:
or
If you want to keep Resources directory under Pages as in question, you should set ResourcesPath to Pages/Resources:
services.AddMvc()
.AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix,
options => options.ResourcesPath = "Pages/Resources");
services.AddLocalization(options => options.ResourcesPath = "Pages/Resources");
But in this case you should still name resource file properly (Pages/Resources/Pages.Index.en.resx or Pages/Resources/Pages/Index.en.resx):
Check Resource file naming section from Globalization and localization in ASP.NET Core article for more details.