C#•7mo ago

✅ Blazor / ASP.NET - @inject keyed service

Is there a way in .NET 8 to inject a keyed service like a normal service with the @inject keyword? I know of the FromKeyedServices attribute, but cannot figure out how to use it in combination with @inject. I thought of a way like @inject [FromKeyedServices("MyService")] ServiceClass FooBar;

4 Replies

SleepWellPupper•7mo ago

Create a property inside a code section or a code-behind file like so:

[Inject]
[FromKeyedServices("MyService"]
public ServiceClass FooBar { get; set; }

[Inject]
[FromKeyedServices("MyService"]
public ServiceClass FooBar { get; set; }

the @inject directive is shorthand for that property without the FromKeyedServicesAttribute

SleepWellPupper•7mo ago

See: https://learn.microsoft.com/en-us/aspnet/core/blazor/fundamentals/dependency-injection?view=aspnetcore-8.0#request-a-service-in-a-component

ASP.NET Core Blazor dependency injection

Learn how Blazor apps can inject services into components.

SpReeDOP•7mo ago

Idd, so I guess it's not yet implemented, maybe in .NET 9?

SleepWellPupper•7mo ago

It is implemented Just not as a razor directive, likely because it is not used often enough to warrant an actual razor-"keyword".

Gaming

Programming

✅ Blazor / ASP.NET - @inject keyed service