使用数据库资源本地化 Blazor 托管的 Web 程序集

Question

I try to localize my Blazor hosted Webassembly. For this i have created a Database and oriented on the following link:

https://www.ezzylearning.net/tutorial/asp-net-core-localization-from-database

But the tutorial is for a ASP.NET Core application. How can i use this solution in Blazor?

I following all the steps but in the end i can´t connect the database as a resource to my IStringLocalizer<T> localizer . How can i achieve that in my client project instead of the usual resx file the database is created via the controller in my server project is used?

Answer 1

You'd need to implement your own version of the IStringLocalizer interface... however you should note that this is really just a shim interface over the ResourceManagerLocalizer, and the ResourceManagerStringLocalizerFactory. These obviously use the ResourceManager which is where the resx file formats (which get embedded as resources into assemblies) come into it.

So you'd:

1. Create a DbStringLocalizer (implementing IStringLocalizer) which would retrieve your desired translation from the DB, you'd probably want to cache translations also, to avoid network round trips.
2. Create a DbStringLocalizerFactory which would cache DbStringLocalizer instances to avoid losing cached translations also
3. Create an Extension method to easily allow you to register your Singleton DbStringLocalizerFactory, and your Transient DbStringLocalizer

The .NET Core sources are readily available, so you could implement closely in line with the existing source. Just using a DB connection (and CultureInfo handling) in place of the ResourceManager (which already handles CultureInfo lookups).

And the Microsoft guide for the ResourceManager Webassembly version (that you should use as your starting point for DB driven)

https://docs.microsoft.com/en-us/aspnet/core/blazor/globalization-localization?view=aspnetcore-6.0&pivots=webassembly