What's new in ASP.NET Core 2.1 Localization

What's new in ASP.NET Core 2.1 Localization

Jun 16, 2018 0 Comments Posted in #Localization  #ASP.NETCore2.1 

It has been a while since I wrote my last post, I was too busy last few months. but I'm back again ASP.NET Core 2.1 is out, new release .. new stuff .. Today I want to mention to you guys what is new in localization that not everyone knows about in this release.

1- Allow setting RootNamespace in ResourceLocationAttribute

The first one was originally raised by an old bug, the localization is not working after changing the rootnamespace. Then fix was finally came up in this release by introducing a new ResourceLocaltionAttribute which allows you to specify the rootnamespace at runtime to avoid renaming rootnamespace issue after creating the project.

2- Add a builder APIs for configuring UseRequestLocalization

I like the second one not because I made a PR for :) but because it's really simplify the creation for localization options in UseRequestLocalization(), in the previous version you need to write something like:

var supportedCultures = new List<CultureInfo>
    new CultureInfo("en-US"),
    new CultureInfo("en-AU"),
    new CultureInfo("fr-FR")
var options = new RequestLocalizationOptions    
    DefaultRequestCulture = new RequestCulture("en-US"),    
    SupportedCultures = supportedCultures,    
    SupportedUICultures = supportedCultures    

to setup the localization options, but now you can simplify it builder API:

var supportedCultures = new [] { "en-US", "en-AU", "fr-FR" };
app.UseRequestLocalization(options =>


app.UseRequestLocalization("en-US", "en-AU", "fr-FR");

3- Log diagnostic information for searched localization resources

The last one is tiny, but very very useful. In the past if a resource is missed for any reason the user will not get any kind of information of what's going on, which is take time for debugging, but now the localization APIs write a debug log that shows where we searched for a given resource.


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